Log in

Relevant bibliographies by topics / Visible-Light Driven Chemical Transformations / Journal articles

Journal articles on the topic 'Visible-Light Driven Chemical Transformations'

To see the other types of publications on this topic, follow the link: Visible-Light Driven Chemical Transformations.

Author: Grafiati

Published: 10 December 2022

Last updated: 29 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Visible-Light Driven Chemical Transformations.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Byun, Jeehye, and Kai A. I. Zhang. "Designing conjugated porous polymers for visible light-driven photocatalytic chemical transformations." Materials Horizons 7, no. 1 (2020): 15–31. http://dx.doi.org/10.1039/c9mh01071h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Liu, Qiang, and Li-Zhu Wu. "Recent advances in visible-light-driven organic reactions." National Science Review 4, no. 3 (April 8, 2017): 359–80. http://dx.doi.org/10.1093/nsr/nwx039.

Full text

Abstract:

Abstract In recent years, visible-light-driven organic reactions have been experiencing a significant renaissance in response to topical interest in environmentally friendly green chemical synthesis. The transformations using inexpensive, readily available visible-light sources have come to the forefront in organic chemistry as a powerful strategy for the activation of small molecules. In this review, we focus on recent advances in the development of visible-light-driven organic reactions, including aerobic oxidation, hydrogen-evolution reactions, energy-transfer reactions and asymmetric reactions. These key research topics represent a promising strategy towards the development of practical, scalable industrial processes with great environmental benefits.

APA, Harvard, Vancouver, ISO, and other styles

3

Jiang, Xuefeng, and Deqing Hu. "Perspectives for Uranyl Photoredox Catalysis." Synlett 32, no. 13 (April 28, 2021): 1330–42. http://dx.doi.org/10.1055/a-1493-3564.

Full text

Abstract:

AbstractThe application of uranyl salts as powerful photoredox catalysts in chemical transformations lags behind the advances achieved in thermocatalysis and structural chemistry. In fact, uranyl cations (UO2 2+) have proven to be ideal photoredox catalysts in visible-light-driven chemical reactions. The excited state of uranyl cations (*UO2 2+) that is generated by visible-light irradiation has a long-lived fluorescence lifetime up to microseconds and high oxidizing ability [E o = +2.6 V vs. standard hydrogen electrode (SHE)]. After ligand-to-metal charge transfer (LMCT), quenching occurs with organic substrates via hydrogen-atom transfer (HAT) or single-electron transfer (SET). Interestingly, the ground state and excited state of uranyl cations (UO2 2+) are chemically inert toward oxygen molecules, preventing undesired transformations from active oxygen species. This review summarizes recent advances in photoredox transformations enabled by uranyl salts.1 Introduction2 The Application of Uranyl Photoredox Catalysis in HAT Mode3 The Application of Uranyl Photoredox Catalysis in SET Mode4 Conclusion and Outlook

APA, Harvard, Vancouver, ISO, and other styles

4

Li, Run, Jeehye Byun, Wei Huang, Cyrine Ayed, Lei Wang, and Kai A. I. Zhang. "Poly(benzothiadiazoles) and Their Derivatives as Heterogeneous Photocatalysts for Visible-Light-Driven Chemical Transformations." ACS Catalysis 8, no. 6 (April 20, 2018): 4735–50. http://dx.doi.org/10.1021/acscatal.8b00407.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Zhang, Yanhui, and Yi-Jun Xu. "Bi2WO6: A highly chemoselective visible light photocatalyst toward aerobic oxidation of benzylic alcohols in water." RSC Advances 4, no. 6 (2014): 2904–10. http://dx.doi.org/10.1039/c3ra46383d.

Full text

Abstract:

The visible-light-driven flower-like Bi₂WO₆ photocatalyst toward “green” chemistry oriented selective organic transformations in water is an essential pathway to sustainable development.

APA, Harvard, Vancouver, ISO, and other styles

6

Chakraborty, Jeet, Ipsita Nath, Shaoxian Song, Sharmarke Mohamed, Anish Khan, Philippe M. Heynderickx, and Francis Verpoort. "Porous organic polymer composites as surging catalysts for visible-light-driven chemical transformations and pollutant degradation." Journal of Photochemistry and Photobiology C: Photochemistry Reviews 41 (December 2019): 100319. http://dx.doi.org/10.1016/j.jphotochemrev.2019.100319.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Gazi, Sarifuddin, Miloš Đokić, Kek Foo Chin, Pei Rou Ng, and Han Sen Soo. "Visible Light–Driven Cascade Carbon–Carbon Bond Scission for Organic Transformations and Plastics Recycling." Advanced Science 6, no. 24 (October 24, 2019): 1902020. http://dx.doi.org/10.1002/advs.201902020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Chen, Fei, Qi Yang, Fubing Yao, Yinghao Ma, Yali Wang, Xiaoming Li, Dongbo Wang, Longlu Wang, and Hanqing Yu. "Synergetic transformations of multiple pollutants driven by BiVO4-catalyzed sulfite under visible light irradiation: Reaction kinetics and intrinsic mechanism." Chemical Engineering Journal 355 (January 2019): 624–36. http://dx.doi.org/10.1016/j.cej.2018.08.182.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Naya, Shin-ichi, Musashi Fujishima, and Hiroaki Tada. "Synthesis of Au–Ag Alloy Nanoparticle-Incorporated AgBr Crystals." Catalysts 9, no. 9 (September 3, 2019): 745. http://dx.doi.org/10.3390/catal9090745.

Full text

Abstract:

Nanoscale composites consisting of silver and silver halide (Ag–AgX, X = Cl, Br, I) have attracted much attention as a novel type of visible-light photocatalyst (the so-called plasmonic photocatalysts), for solar-to-chemical transformations. Support-free Au–Ag alloy nanoparticle-incorporated AgBr crystals (Au–Ag@AgBr) were synthesized by a photochemical method. At the initial step, Au ion-doped AgBr particles were prepared by adding an aqueous solution of AgNO3 to a mixed aqueous solution of KBr and HAuBr4. At the next step, UV-light illumination (λ = 365 nm) of a methanol suspension of the resulting solids yielded Au–Ag alloy nanoparticles with a mean size of approximately 5 nm in the micrometer-sized AgBr crystals. The mole percent of Au to all the Ag in Au–Ag@AgBr was controlled below < 0.16 mol% by the HAuBr4 concentration in the first step. Finite-difference time-domain calculations indicated that the local electric field enhancement factor for the alloy nanoparticle drastically decreases with an increase in the Au content. Also, the peak of the localized surface plasmon resonance shifts towards longer wavelengths with increasing Au content. Au–Ag@AgBr is a highly promising plasmonic photocatalyst for sunlight-driven chemical transformations due to the compatibility of the high local electric field enhancement and sunlight harvesting efficiency.

APA, Harvard, Vancouver, ISO, and other styles

10

Gamsjäger, Ernst. "Kinetics of diffusive phase transformations: From local equilibrium to mobility-driven migration of thick interfaces." Pure and Applied Chemistry 83, no. 5 (March 4, 2011): 1105–12. http://dx.doi.org/10.1351/pac-con-10-10-02.

Full text

Abstract:

It is a prerequisite for the occurrence of diffusive phase transformations that the system is in an off-equilibrium condition. The time-dependent development of the variables until equilibrium or steady-state conditions are reached can be calculated by solving the evolution equations that can be derived from the principle of maximum entropy production. These equations provide the theoretical framework for the kinetics of diffusive phase transformations. In this work, the development from sharp interface-local equilibrium (SI-LE) models to thick interface-finite mobility (TI-FM) models is reviewed and presented in the light of the above-mentioned principle. Experimental results indicate that the kinetics of diffusive solid-state phase transformations can, at least in certain ranges of composition and temperature, be modeled in a satisfactory manner by the TI-FM approach only.

APA, Harvard, Vancouver, ISO, and other styles

11

Wang, Guoshu, and Kathrin Castiglione. "Light-Driven Biocatalysis in Liposomes and Polymersomes: Where Are We Now?" Catalysts 9, no. 1 (December 25, 2018): 12. http://dx.doi.org/10.3390/catal9010012.

Full text

Abstract:

The utilization of light energy to power organic-chemical transformations is a fundamental strategy of the terrestrial energy cycle. Inspired by the elegance of natural photosynthesis, much interdisciplinary research effort has been devoted to the construction of simplified cell mimics based on artificial vesicles to provide a novel tool for biocatalytic cascade reactions with energy-demanding steps. By inserting natural or even artificial photosynthetic systems into liposomes or polymersomes, the light-driven proton translocation and the resulting formation of electrochemical gradients have become possible. This is the basis for the conversion of photonic into chemical energy in form of energy-rich molecules such as adenosine triphosphate (ATP), which can be further utilized by energy-dependent biocatalytic reactions, e.g. carbon fixation. This review compares liposomes and polymersomes as artificial compartments and summarizes the types of light-driven proton pumps that have been employed in artificial photosynthesis so far. We give an overview over the methods affecting the orientation of the photosystems within the membranes to ensure a unidirectional transport of molecules and highlight recent examples of light-driven biocatalysis in artificial vesicles. Finally, we summarize the current achievements and discuss the next steps needed for the transition of this technology from the proof-of-concept status to preparative applications.

APA, Harvard, Vancouver, ISO, and other styles

12

Kumar Ray, Schindra, Dipesh Dhakal, Gobinda Gyawali, Bhupendra Joshi, Agni Raj Koirala, and Soo Wohn Lee. "Transformation of tetracycline in water during degradation by visible light driven Ag nanoparticles decorated α-NiMoO4 nanorods: Mechanism and pathways." Chemical Engineering Journal 373 (October 2019): 259–74. http://dx.doi.org/10.1016/j.cej.2019.05.041.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Chen, Kexun, and Hui Wang. "Plasmon-driven photocatalytic molecular transformations on metallic nanostructure surfaces: mechanistic insights gained from plasmon-enhanced Raman spectroscopy." Molecular Systems Design & Engineering 6, no. 4 (2021): 250–80. http://dx.doi.org/10.1039/d1me00016k.

Full text

Abstract:

This Review Article elaborates on the insights gained from in situ plasmon-enhanced Raman spectroscopy, which shed light on the complex mechanisms underpinning plasmon-driven photocatalytic molecular transformations on nanostructured metal surfaces.

APA, Harvard, Vancouver, ISO, and other styles

14

Chen, Zhi-Ting, Ju-Ting Lee, and Ming-Yen Wey. "Fabrication of visible-light-driven bimetallic MOF-derived Ag/NiOx/N-TiO2: Photocatalytic hydrogen production mechanism and methanol transformation pathway." Journal of Environmental Chemical Engineering 10, no. 5 (October 2022): 108375. http://dx.doi.org/10.1016/j.jece.2022.108375.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Teixeira, Ivo F., Mauricio S. Homsi, Rafael S. Geonmonond, Guilherme F. S. R. Rocha, Yung-Kang Peng, Ingrid F. Silva, Jhon Quiroz, and Pedro H. C. Camargo. "Hot Electrons, Hot Holes, or Both? Tandem Synthesis of Imines Driven by the Plasmonic Excitation in Au/CeO2 Nanorods." Nanomaterials 10, no. 8 (August 4, 2020): 1530. http://dx.doi.org/10.3390/nano10081530.

Full text

Abstract:

Solar-to-chemical conversion via photocatalysis is of paramount importance for a sustainable future. Thus, investigating the synergistic effects promoted by light in photocatalytic reactions is crucial. The tandem oxidative coupling of alcohols and amines is an attractive route to synthesize imines. Here, we unravel the performance and underlying reaction pathway in the visible-light-driven tandem oxidative coupling of benzyl alcohol and aniline employing Au/CeO2 nanorods as catalysts. We propose an alternative reaction pathway for this transformation that leads to improved efficiencies relative to individual CeO2 nanorods, in which the localized surface plasmon resonance (LSPR) excitation in Au nanoparticles (NPs) plays an important role. Our data suggests a synergism between the hot electrons and holes generated from the LSPR excitation in Au NPs. While the oxygen vacancies in CeO2 nanorods trap the hot electrons and facilitate their transfer to adsorbed O2 at surface vacancy sites, the hot holes in the Au NPs facilitate the α-H abstraction from the adsorbed benzyl alcohol, evolving into benzaldehyde, which then couples with aniline in the next step to yield the corresponding imine. Finally, cerium-coordinated superoxide species abstract hydrogen from the Au surface, regenerating the catalyst surface.

APA, Harvard, Vancouver, ISO, and other styles

16

Dai, Pengpeng, Qingling Wang, Mei Xiang, Teng-Ming Chen, Xintong Zhang, Yun-Wei Chiang, Ting-Shan Chan, and Xiaojun Wang. "Composition-driven anionic disorder-order transformations triggered single-Eu2+-converted high-color-rendering white-light phosphors." Chemical Engineering Journal 380 (January 2020): 122508. http://dx.doi.org/10.1016/j.cej.2019.122508.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Yang, Yang, Zhuotong Zeng, Chen Zhang, Danlian Huang, Guangming Zeng, Rong Xiao, Cui Lai, et al. "Construction of iodine vacancy-rich BiOI/Ag@AgI Z-scheme heterojunction photocatalysts for visible-light-driven tetracycline degradation: Transformation pathways and mechanism insight." Chemical Engineering Journal 349 (October 2018): 808–21. http://dx.doi.org/10.1016/j.cej.2018.05.093.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Li, Chuang, Garrett C. Lau, Hang Yuan, Aaveg Aggarwal, Victor Lopez Dominguez, Shuangping Liu, Hiroaki Sai, et al. "Fast and programmable locomotion of hydrogel-metal hybrids under light and magnetic fields." Science Robotics 5, no. 49 (December 9, 2020): eabb9822. http://dx.doi.org/10.1126/scirobotics.abb9822.

Full text

Abstract:

The design of soft matter in which internal fuels or an external energy input can generate locomotion and shape transformations observed in living organisms is a key challenge. Such materials could assist in productive functions that may range from robotics to smart management of chemical reactions and communication with cells. In this context, hydrated matter that can function in aqueous media would be of great interest. Here, we report the design of hydrogels containing a scaffold of high–aspect ratio ferromagnetic nanowires with nematic order dispersed in a polymer network that change shape in response to light and experience torques in rotating magnetic fields. The synergistic response enables fast walking motion of macroscopic objects in water on either flat or inclined surfaces and also guides delivery of cargo through rolling motion and light-driven shape changes. The theoretical description of the response to the external energy input allowed us to program specific trajectories of hydrogel objects that were verified experimentally.

APA, Harvard, Vancouver, ISO, and other styles

19

Han, Guanqun, and Yujie Sun. "Visible-light-driven organic transformations on semiconductors." Materials Today Physics 16 (January 2021): 100297. http://dx.doi.org/10.1016/j.mtphys.2020.100297.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Collet, Eric, Maciej Lorenc, Marco Cammarata, Marina Servol, Herve Cailleau, and Marylise Buron. "Symmetry, Aperiodicity and Ultrafast Photo-Switching in Spin-Crossover Compounds." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C768. http://dx.doi.org/10.1107/s2053273314092316.

Full text

Abstract:

The optical control of materials and related physical properties (electronic state, magnetic, optical...) by laser irradiation has gained tremendous interest within the emerging field of photoinduced phase transitions. Light-induced changes of molecular systems involve subtle coupling between the electronic and structural degrees of freedom, which are essential to stabilize the photo-excited state, different in nature from the stable state. Therefore the new experimental field of photocrystallography plays a key role. Its outreach goes far beyond simple structural analysis under laser excitation. By playing on different physical parameters and developing the techniques and analysis, one can investigate new out of equilibrium physics through light-driven cooperative dynamics and transformations in materials, or follow a chemical reaction in real time [1]. The use of photo-crystallography allows to investigate the nature, the mechanisms and the dynamics of photoinduced phase transitions. Here we will present photocrystallography studies of the photo-switching process in spin-crossover materials. On the one hand, ultrafast diffraction allows to follow the structural dynamics [2] and to probe the different processes following femtosecond laser excitation. Recent studies performed on the LCLS X-FEL have shown that the structural molecular changes, with the characteristic Fe-N bond elongation, occur within 160 fs. On the other hand, we will present investigations on the effect of light excitation on spin-state concentration waves, which may be of aperiodic nature (Figure, [3]). Time-resolved x-ray diffraction studies reveal that the high symmetry phase is reached only after milliseconds.

APA, Harvard, Vancouver, ISO, and other styles

21

Yang, Xue, Suyuan Zhang, Peixian Li, Shuiying Gao, and Rong Cao. "Visible-light-driven photocatalytic selective organic oxidation reactions." Journal of Materials Chemistry A 8, no. 40 (2020): 20897–924. http://dx.doi.org/10.1039/d0ta05485b.

Full text

Abstract:

In this review, we focus on the most recent advances made in visible-light-driven selective organic oxidation transformations and highlighted their reaction mechanisms. Moreover, we discuss the future development trends, challenges, and prospective outlook in detail.

APA, Harvard, Vancouver, ISO, and other styles

22

Wei, Yi, Quan-Quan Zhou, Fen Tan, Liang-Qiu Lu, and Wen-Jing Xiao. "Visible-Light-Driven Organic Photochemical Reactions in the Absence of External Photocatalysts." Synthesis 51, no. 16 (May 20, 2019): 3021–54. http://dx.doi.org/10.1055/s-0037-1611812.

Full text

Abstract:

Visible-light-driven organic photochemical reactions have attracted substantial attention from the synthetic community. Typically, catalytic quantities of photosensitizers, such as transition metal complexes, organic dyes, or inorganic semiconductors, are necessary to absorb visible light and trigger subsequent organic transformations. Recently, in contrast to these photocatalytic processes, a variety of photocatalyst-free organic photochemical transformations have been exploited for the efficient formation of carbon–carbon and carbon–heteroatom bonds. In addition to not requiring additional photocatalysts, they employ low-energy visible light irradiation, have mild reaction conditions, and enable broad substrate diversity and functional group tolerance. This review will focus on a summary of representative work in this field in terms of different photoexcitation modes.1 Introduction2 Visible Light Photoexcitation of a Single Substrate3 Visible Light Photoexcitation of Reaction Intermediates4 Visible Light Photoexcitation of EDA Complexes between Substrates5 Visible Light Photoexcitation of EDA Complexes between Substrates and Reaction Intermediates6 Visible Light Photoexcitation of Products7 Conclusion and Outlook

APA, Harvard, Vancouver, ISO, and other styles

23

Yarur Villanueva, Francisco, John Manioudakis, Rafik Naccache, and Marek B. Majewski. "Carbon Dot-Sensitized Photoanodes for Visible Light-Driven Organic Transformations." ACS Applied Nano Materials 3, no. 3 (February 25, 2020): 2756–65. http://dx.doi.org/10.1021/acsanm.0c00094.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Coeffard, Vincent, Jérôme Fischer, and Pierrick Nun. "Visible-Light-Driven Transformations of Phenols via Energy Transfer Catalysis." Synthesis 52, no. 11 (April 2, 2020): 1617–24. http://dx.doi.org/10.1055/s-0039-1708005.

Full text

Abstract:

In the past decade, the field of visible-light-mediated photocatalysis has been particularly thriving by offering innovative synthetic tools for the construction of functionalized architectures from simple and readily available substrates. One strategy that has been of interest is energy transfer catalysis, which is a powerful way of activating a substrate or an intermediate by using the combination of light and a relevant photosensitizer. This review deals with recent advances in energy transfer catalysis applied to phenols, which are ubiquitous in chemistry both as starting materials and as high-added-value products. Processes involving energy transfer from the excited photosensitizer to ground state oxygen and to phenol-containing substrates will be described.1 Introduction2 Intermolecular Processes2.1 Reactions with Singlet Oxygen2.2 [2+2] Cycloadditions3 Intramolecular Transformations4 Conclusions and Outlook

APA, Harvard, Vancouver, ISO, and other styles

25

Filippini, Dario, and Mattia Silvi. "Visible light-driven conjunctive olefination." Nature Chemistry 14, no. 1 (November 4, 2021): 66–70. http://dx.doi.org/10.1038/s41557-021-00807-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Obst, M., R. S. Shaikh, and B. König. "Solvent-free coupling of aryl halides with pyrroles applying visible-light photocatalysis." Reaction Chemistry & Engineering 2, no. 4 (2017): 472–78. http://dx.doi.org/10.1039/c6re00220j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Tang, Jian-Hong, and Yujie Sun. "Visible-light-driven organic transformations integrated with H2 production on semiconductors." Materials Advances 1, no. 7 (2020): 2155–62. http://dx.doi.org/10.1039/d0ma00327a.

Full text

Abstract:

Organic reactions coupled with H₂ evolution via semiconductor-based photocatalytic systems under visible light irradiation have gained increasing attention, utilizing both excited electrons and holes to produce organics and H₂ simultaneously.

APA, Harvard, Vancouver, ISO, and other styles

28

Pitre, Spencer P., Christopher D. McTiernan, and Juan C. Scaiano. "Library of Cationic Organic Dyes for Visible-Light-Driven Photoredox Transformations." ACS Omega 1, no. 1 (July 6, 2016): 66–76. http://dx.doi.org/10.1021/acsomega.6b00058.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Mori, Kohsuke, and Hiromi Yamashita. "Metal Complexes Supported on Solid Matrices for Visible-Light-Driven Molecular Transformations." Chemistry - A European Journal 22, no. 32 (June 17, 2016): 11122–37. http://dx.doi.org/10.1002/chem.201600441.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Tavakolian, Mina, and Mona Hosseini-Sarvari. "Catalyst-Free Organic Transformations under Visible-Light." ACS Sustainable Chemistry & Engineering 9, no. 12 (March 16, 2021): 4296–323. http://dx.doi.org/10.1021/acssuschemeng.0c06657.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Li, Hongjia, Xiaobi Jing, Yaocheng Shi, and Lei Yu. "Autocatalytic deoximation reactions driven by visible light." Reaction Chemistry & Engineering 6, no. 1 (2021): 119–24. http://dx.doi.org/10.1039/d0re00333f.

Full text

Abstract:

Photocatalytic deoximation reaction was found to be an autocatalytic process that occurs via free-radical mechanism. Understanding the mechanism may help chemical engineers to develop related techniques to avoid the decomposition of oximes.

APA, Harvard, Vancouver, ISO, and other styles

32

Filippini, Dario, and Mattia Silvi. "Publisher Correction: Visible light-driven conjunctive olefination." Nature Chemistry 14, no. 1 (November 26, 2021): 110. http://dx.doi.org/10.1038/s41557-021-00863-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Sridhar, Arunasalam, Rajmohan Rangasamy, and Mari Selvaraj. "Polymer-supported eosin Y as a reusable photocatalyst for visible light mediated organic transformations." New Journal of Chemistry 43, no. 46 (2019): 17974–79. http://dx.doi.org/10.1039/c9nj04064a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Zhi, Peng, Zi-Wei Xi, Dan-Yan Wang, Wei Wang, Xue-Zheng Liang, Fei-Fei Tao, Run-Pu Shen, and Yong-Miao Shen. "Vilsmeier–Haack reagent mediated synthetic transformations with an immobilized iridium complex photoredox catalyst." New Journal of Chemistry 43, no. 2 (2019): 709–17. http://dx.doi.org/10.1039/c8nj05288c.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Parasram, Marvin, and Vladimir Gevorgyan. "Visible light-induced transition metal-catalyzed transformations: beyond conventional photosensitizers." Chemical Society Reviews 46, no. 20 (2017): 6227–40. http://dx.doi.org/10.1039/c7cs00226b.

Full text

Abstract:

Employment of simple transition metal (TM = Co, Fe, Cu, Pd, Pt, Au)-based photocatalyst (PC) has led to the dramatic acceleration of known TM-catalyzed reactions, as well as to the discovery of unprecedented chemical transformations.

APA, Harvard, Vancouver, ISO, and other styles

36

Liu, Haoran, Chunzhi Li, He Li, Yiqi Ren, Jian Chen, Jianting Tang, and Qihua Yang. "Structural Engineering of Two-Dimensional Covalent Organic Frameworks for Visible-Light-Driven Organic Transformations." ACS Applied Materials & Interfaces 12, no. 18 (April 10, 2020): 20354–65. http://dx.doi.org/10.1021/acsami.0c00013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Ling, Qincai, Jianzhong Sun, Qiyun Zhou, Qian Zhao, and Hua Ren. "Visible-light-driven boron/ferrum/cerium/titania photocatalyst." Journal of Photochemistry and Photobiology A: Chemistry 200, no. 2-3 (December 2008): 141–47. http://dx.doi.org/10.1016/j.jphotochem.2008.07.003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Ngai, Ming-Yu, Arghya Banerjee, and Zhen Lei. "Acyl Radical Chemistry via Visible-Light Photoredox Catalysis." Synthesis 51, no. 02 (December 12, 2018): 303–33. http://dx.doi.org/10.1055/s-0037-1610329.

Full text

Abstract:

Visible-light photoredox catalysis enables easy access to acyl radicals under mild reaction conditions. Reactive acyl radicals, generated from various acyl precursors such as aldehydes, α-keto acids, carboxylic acids, anhydrides, acyl thioesters, acyl chlorides, or acyl silanes, can undergo a diverse range of synthetically useful transformations, which were previously difficult or inaccessible. This review summarizes the recent progress on visible-light-driven acyl radical generation using transition-metal photoredox catalysts, metallaphotocatalysts, hypervalent iodine catalysts or organic photocatalysts.1 Introduction2 The Scope of This Review3 Aldehydes as a Source of Acyl Radicals4 α-Keto Acids as a Source of Acyl Radicals5 Carboxylic Acids as a Source of Acyl Radicals6 Anhydrides as a Source of Acyl Radicals7 Acyl Thioesters as a Source of Acyl Radicals8 Acyl Chlorides as a Source of Acyl Radicals9 Acyl Silanes as a Source of Acyl Radicals10 Conclusions and Future Outlook

APA, Harvard, Vancouver, ISO, and other styles

39

Kathan, Michael, Stefano Crespi, Niklas O. Thiel, Daniel L. Stares, Denis Morsa, John de Boer, Gianni Pacella, et al. "A light-fuelled nanoratchet shifts a coupled chemical equilibrium." Nature Nanotechnology 17, no. 2 (December 16, 2021): 159–65. http://dx.doi.org/10.1038/s41565-021-01021-z.

Full text

Abstract:

AbstractBiological molecular machines enable chemical transformations, assembly, replication and motility, but most distinctively drive chemical systems out of-equilibrium to sustain life1,2. In such processes, nanometre-sized machines produce molecular energy carriers by driving endergonic equilibrium reactions. However, transforming the work performed by artificial nanomachines3–5 into chemical energy remains highly challenging. Here, we report a light-fuelled small-molecule ratchet capable of driving a coupled chemical equilibrium energetically uphill. By bridging two imine6–9 macrocycles with a molecular motor10,11, the machine forms crossings and consequently adopts several distinct topologies by either a thermal (temporary bond-dissociation) or photochemical (unidirectional rotation) pathway. While the former will relax the machine towards the global energetic minimum, the latter increases the number of crossings in the system above the equilibrium value. Our approach provides a blueprint for coupling continuous mechanical motion performed by a molecular machine with a chemical transformation to reach an out-of-equilibrium state.

APA, Harvard, Vancouver, ISO, and other styles

40

Umar, Ahmad, M. S. Akhtar, G. N. Dar, M. Abaker, A. Al-Hajry, and S. Baskoutas. "Visible-light-driven photocatalytic and chemical sensing properties of SnS2 nanoflakes." Talanta 114 (September 2013): 183–90. http://dx.doi.org/10.1016/j.talanta.2013.03.050.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Singh, Praveen P., Surabhi Sinha, Geetika Pandey, and Vishal Srivastava. "Molybdenum disulfide (MoS₂) based photoredox catalysis in chemical transformations." RSC Advances 12, no. 46 (2022): 29826–39. http://dx.doi.org/10.1039/d2ra05695j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Molinari, Raffaele, Cristina Lavorato, and Pietro Argurio. "Visible-Light Photocatalysts and Their Perspectives for Building Photocatalytic Membrane Reactors for Various Liquid Phase Chemical Conversions." Catalysts 10, no. 11 (November 17, 2020): 1334. http://dx.doi.org/10.3390/catal10111334.

Full text

Abstract:

Photocatalytic organic synthesis/conversions and water treatment under visible light are a challenging task to use renewable energy in chemical transformations. In this review a brief overview on the mainly employed visible light photocatalysts and a discussion on the problems and advantages of Vis-light versus UV-light irradiation is reported. Visible light photocatalysts in the photocatalytic conversion of CO2, conversion of acetophenone to phenylethanol, hydrogenation of nitro compounds, oxidation of cyclohexane, synthesis of vanillin and phenol, as well as hydrogen production and water treatment are discussed. Some applications of these photocatalysts in photocatalytic membrane reactors (PMRs) for carrying out organic synthesis, conversion and/or degradation of organic pollutants are reported. The described cases show that PMRs represent a promising green technology that could shift on applications of industrial interest using visible light (from Sun) active photocatalysts.

APA, Harvard, Vancouver, ISO, and other styles

43

Sampedro, P., G. Colón, and M. Fernández-García. "Visible-light driven TiO2 photocatalysts from Ti-oxychloride precursors." Journal of Photochemistry and Photobiology A: Chemistry 199, no. 2-3 (September 2008): 136–43. http://dx.doi.org/10.1016/j.jphotochem.2008.05.008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Kawawaki, Tokuhisa, Masanobu Kawachi, Daichi Yazaki, Yuki Akinaga, Daisuke Hirayama, and Yuichi Negishi. "Development and Functionalization of Visible-Light-Driven Water-Splitting Photocatalysts." Nanomaterials 12, no. 3 (January 21, 2022): 344. http://dx.doi.org/10.3390/nano12030344.

Full text

Abstract:

With global warming and the depletion of fossil resources, our fossil fuel-dependent society is expected to shift to one that instead uses hydrogen (H2) as a clean and renewable energy. To realize this, the photocatalytic water-splitting reaction, which produces H2 from water and solar energy through photocatalysis, has attracted much attention. However, for practical use, the functionality of water-splitting photocatalysts must be further improved to efficiently absorb visible (Vis) light, which accounts for the majority of sunlight. Considering the mechanism of water-splitting photocatalysis, researchers in the various fields must be employed in this type of study to achieve this. However, for researchers in fields other than catalytic chemistry, ceramic (semiconductor) materials chemistry, and electrochemistry to participate in this field, new reviews that summarize previous reports on water-splitting photocatalysis seem to be needed. Therefore, in this review, we summarize recent studies on the development and functionalization of Vis-light-driven water-splitting photocatalysts. Through this summary, we aim to share current technology and future challenges with readers in the various fields and help expedite the practical application of Vis-light-driven water-splitting photocatalysts.

APA, Harvard, Vancouver, ISO, and other styles

45

Liu, Yang, Zhuofeng Hu, and Jimmy C. Yu. "Fe Enhanced Visible-Light-Driven Nitrogen Fixation on BiOBr Nanosheets." Chemistry of Materials 32, no. 4 (January 7, 2020): 1488–94. http://dx.doi.org/10.1021/acs.chemmater.9b04448.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Pornrungroj, Chanon, Mamiko Ozawa, Tsunenobu Onodera, and Hidetoshi Oikawa. "A promising visible light-driven photocatalytic activity of conjugated polymer nanocrystals." RSC Advances 8, no. 68 (2018): 38773–79. http://dx.doi.org/10.1039/c8ra07837h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Tahara, Keishiro, and Yoshio Hisaeda. "Eco-friendly molecular transformations catalyzed by a vitamin B12 derivative with a visible-light-driven system." Green Chemistry 13, no. 3 (2011): 558. http://dx.doi.org/10.1039/c0gc00478b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Ullah, Haseeb, Eva Viglašová, and Michal Galamboš. "Visible Light-Driven Photocatalytic Rhodamine B Degradation Using CdS Nanorods." Processes 9, no. 2 (January 29, 2021): 263. http://dx.doi.org/10.3390/pr9020263.

Full text

Abstract:

In this work, highly crystalline CdS nanorods (NRs) were successfully synthesized by a facile, one-step solvothermal method. The as-prepared CdS NRs powder was characterized by XRD, FESEM, Raman, PL, XPS, BET, and UV-visible techniques to evaluate the structural, morphological, and optical properties. The photocatalytic performance of the as-synthesized CdS NRs was investigated for the photodegradation of RhB dye under visible light irradiations. It has been found that CdS NRs show maximum RhB degradation efficiency of 88.4% in 120 min. The excellent photodegradation ability of the CdS NRs can be attributed to their rod-like structure together with their large surface area and surface state. The kinetic study indicated that the photodegradation process was best described by the pseudo-first-order kinetic model. The possible mechanism for the photodegradation of RhB dye over CdS NRs was proposed in this paper.

APA, Harvard, Vancouver, ISO, and other styles

49

Tian, Jia, Yifan Zhang, Lili Du, Yunxiang He, Xu-Hui Jin, Samuel Pearce, Jean-Charles Eloi, et al. "Tailored self-assembled photocatalytic nanofibres for visible-light-driven hydrogen production." Nature Chemistry 12, no. 12 (November 20, 2020): 1150–56. http://dx.doi.org/10.1038/s41557-020-00580-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Loka, Chadrasekhar, and Kee-Sun Lee. "Enhanced Visible-Light-Driven Photocatalysis of Ag/Ag2O/ZnO Nanocomposite Heterostructures." Nanomaterials 12, no. 15 (July 23, 2022): 2528. http://dx.doi.org/10.3390/nano12152528.

Full text

Abstract:

Visible-light-driven photocatalysis is one promising and efficient approach for decontaminating pollutants. Herein, we report the combination of localized surface plasmon resonance (LSPR) and p-n heterojunction structure Ag-Ag2O-ZnO nanocomposite synthesized by a hydrothermal process for the suppression of photogenerated electron-hole pair recombination rates, the extension of the absorption edge to the visible region, and the enhancement of photocatalytic efficiency. The prepared nanocomposites were investigated by standard analytical techniques and the results revealed that the synthesized powders were comprised of Ag, Ag2O, and ZnO phases. Photocatalytic activity of the photocatalyst tested for methylene blue, methyl orange, and rhodamine B showed the highest photocatalytic degradation efficiency: 97.3%, 91.1%, and 94.8% within 60 min under visible-light irradiation. The average lifetime of the photogenerated charge carriers was increased twofold in the Ag-Ag2O-ZnO photocatalyst (~10 ns) compared to the pure ZnO (~5.2 ns). The enhanced photocatalytic activity resulted from a decrease of the charge carrier recombination rate as inferred from the steady-state and time-resolved photoluminescence investigations, and the increased photoabsorption ability. The Ag-Ag2O-ZnO photocatalyst was stable over five repeated cyclic photodegradation tests without showing any significant changes in performance. Additionally, the structure indicated a potential for application in environmental remediation. The present study showcases the robust design of highly efficient and reusable visible-light-active photocatalysts via the combination of p-n heterojunction and LSPR phenomena.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!