Gotowe bibliografie tematyczne / Fe-doped zinc oxide nanoparticles

Spis treści

Artykuły w czasopismach
Rozprawy doktorskie
Części książek
Streszczenia konferencji

Gotowa bibliografia na temat „Fe-doped zinc oxide nanoparticles”

Autor: Grafiati

Data publikacji: 6 września 2023

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Zobacz listy aktualnych artykułów, książek, rozpraw, streszczeń i innych źródeł naukowych na temat „Fe-doped zinc oxide nanoparticles”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Artykuły w czasopismach na temat "Fe-doped zinc oxide nanoparticles"

Hussain, Mohammad Musarraf, Abdullah M. Asiri i Mohammed M. Rahman. "Simultaneous detection of l-aspartic acid and glycine using wet-chemically prepared Fe3O4@ZnO nanoparticles: real sample analysis". RSC Advances 10, nr 33 (2020): 19276–89. http://dx.doi.org/10.1039/d0ra03263h.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Rajić, Vladimir, Ivana Stojković Simatović, Ljiljana Veselinović, Jelena Belošević Čavor, Mirjana Novaković, Maja Popović, Srečo Davor Škapin i in. "Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry". Physical Chemistry Chemical Physics 22, nr 38 (2020): 22078–95. http://dx.doi.org/10.1039/d0cp03377d.

Pełny tekst źródła

Streszczenie:

Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn_1−xFe_xO, x = 0, 0.05, 0.1, 0.15 and 0.20) nanoparticles, which were tested as catalysts toward the ORR and OER in a moderately alkaline solution.

Style APA, Harvard, Vancouver, ISO itp.

Mahmoud, A. Z., E. M. M. Ibrahim, Lamiaa Galal, E. R. Shaaban i E. S. Yousef. "Structural, optical and magnetic characteristics of iron doped zinc oxide thin films". Journal of Ovonic Research 19, nr 3 (1.05.2023): 239–51. http://dx.doi.org/10.15251/jor.2023.193.239.

Pełny tekst źródła

Streszczenie:

Zn1-xFexO films with x = 0, 5, 10, 15 and 20 at.% were prepared under high vacuum by the electron beam gun evaporation. The impact of Fe doping concentration on the films' structural, optical and magnetic characteristics has been taken into account. The patterns of XRD for all films at various Fe concentrations showed wurtzite-type structures. The results show that the size of nano-films reduces from 24 nm (0%) to 11 nm (0.20%) with elevating Fe content, which is owing to the difference between the ionic radii of Zn and Fe. Peaks associated with the elements to be seen were visible in the XPS spectra of undoped and 10% Fe-doped ZnO nanoparticles produced by the precipitation process: zinc (Zn), iron (Fe), and oxygen (O). The optical constants (n, k) of the Zn1-xFexO films were obtained by the SE measurements by an ellipsometric model, allowing for the verification of the Fe3+ ions in Fe-doped ZnO. With the addition of Fe, the energy band gap decreased from 3.44 eV to 3.28 eV. M-H measurements revealed room-temperature ferromagnetism in Fe-doped ZnO thin film. As the Fe concentration rises, the magnetization increases until it reaches a concentration of 15%, at which point it starts to decrease. This decrease in magnetization was attributable to the spinel phase, which was seen in the XRD spectra. These findings imply that Fe-doped ZnO is a highly suggested material for the creation of spintronic and optoelectronic devices.

Style APA, Harvard, Vancouver, ISO itp.

Karavasilis, M. V., M. A. Theodoropoulou i C. D. Tsakiroglou. "A comparative study of the performance of zinc oxide and iron oxide doped-zinc oxide photocatalysts toward the oxidization of phenol under UV-radiation and sunlight". IOP Conference Series: Earth and Environmental Science 899, nr 1 (1.11.2021): 012069. http://dx.doi.org/10.1088/1755-1315/899/1/012069.

Pełny tekst źródła

Streszczenie:

Abstract In the present work, a comparative analysis of the photocatalytic degradation of phenol, was done for two different types of immobilized photocatalytic nanoparticles immobilized on 5mm sodalime beads by a facile and cost-effective method: (1) Zinc oxide (ZnO) and (2) Iron doped Zinc Oxide (Fe-ZnO). Tests of phenol degradation by using the immobilized catalyst were conducted in batch photoreactors under UVA light of 22W and summertime sunlight. These tests allowed us to evaluate the phenol degradation rate and photocatalyst durability under controlled conditions.

Style APA, Harvard, Vancouver, ISO itp.

Mușat, Viorica, Mariana Ibănescu, Dana Tutunaru i Florentina Potecaşu. "Fe-Doped ZnO Nanoparticles: Structural, Morphological, Antimicrobial and Photocatalytic Characterization". Advanced Materials Research 1143 (luty 2017): 233–39. http://dx.doi.org/10.4028/www.scientific.net/amr.1143.233.

Pełny tekst źródła

Streszczenie:

Oxide semiconductors have attracted increasing interest due to their potential in solving environmental problems. ZnO-based nanoparticles (NPs) are among the most investigated for efficient disinfection and microbial control.Iron-doped zinc oxide nanoparticles (Fe:ZnO NPs) were successfully fabricated through precipitation method at low temperature followed by thermal treatment. The obtained Fe:ZnO NPs were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and ultraviolet-visible (UV–Vis) spectroscopy. The effect of iron content on structural, morphological, antimicrobial and photocatalytic properties was investigated and discussed.The photocatalytic activity of the nanoparticles was tested by degradation of methylene blue (MB) solution under UV light for 60 min irradiation. The antibacterial activity was determined by paper disc method on Mueller-Hinton agar against the Gram-negative bacteria Escherichia coli (E. coli) and the Gram-positive bacteria Staphylococcus aureus (S. aureus) and compared to that of the undoped ZnO NPs. Consistent improvement on the photocatalytic and antimicrobial activity of Fe-doped ZnO nanoparticles was noticed.

Style APA, Harvard, Vancouver, ISO itp.

Chun, Se Min, Dae Hyun Choi, Jong Bae Park i Yong Cheol Hong. "Optical and Structural Properties of ZnO Nanoparticles Synthesized by CO2 Microwave Plasma at Atmospheric Pressure". Journal of Nanoparticles 2014 (23.06.2014): 1–7. http://dx.doi.org/10.1155/2014/734256.

Pełny tekst źródła

Streszczenie:

The results of carbon-doped zinc oxide nanoparticles synthesized by CO2 microwave plasma at atmospheric pressure are presented. The 2.45-GHz microwave plasma torch and feeder for injecting Zn granules are used in the synthesis of zinc oxide nanoparticles. The Zn granules (13.5 g/min) were introduced into the microwave plasma by CO2 (5 l/min) swirl gas. The microwave power delivered to the CO2 microwave plasma was 1 kW. The synthesis of carbon-doped zinc oxide nanoparticles was carried out in accordance with CO2 + Zn → carbon-doped ZnO + CO. The synthesized carbon-doped zinc oxide nanoparticles have a high purity hexagonal phase. The absorption edge of carbon-doped zinc oxide nanoparticles exhibited a red shift from a high-energy wavelength to lower in the UV-visible spectrum, due to band gap narrowing. A UV-NIR spectrometer, X-ray diffraction, emission scanning electron-microscopy, energy dispersive X-ray microanalysis, Fourier transform infrared spectroscopy, and a UV-Vis-NIR spectrophotometer were used for the characterization of the as-produced products.

Style APA, Harvard, Vancouver, ISO itp.

Rehman, Abdul, Nakash Rizvi i Muhammad Tahir Khan. "To Study the Structural, Optical and Magnetic Properties of Ni-Fe Doped ZnO Diluted Magnetic Semiconductors". NUST Journal of Engineering Sciences 15, nr 1 (30.06.2022): 12–17. http://dx.doi.org/10.24949/njes.v15i1.678.

Pełny tekst źródła

Streszczenie:

The iron and Nickel co-doped in zinc oxide nano-particle, Zn1-x-yFexNiyO {(x=0, y=0), (x=0.05, y=0), (x=0, y=0.05), (x=0.03, y=0.02)} were prepared by Sol-Gel technique. This type of synthesis is used for the manufacture of a Field Effect Transistor (FET) detector which is extremely sensitive, secure, and capable of reproducing. It is also used for the detection of the Piperidine (CH2)5NH (hexahydro pyridone) chemical. The well-closed pack spherical nano-particles of the identified crystalline structure of the usual wurtzite hexagonal phase were achieved by characterization of X-Ray Diffraction (XRD). The blue shift was well observed of Co-doped samples as compared to un-doped or single-doped ZnO nanoparticle samples by UV-visible absorption spectrum. The Fourier Transform Infrared Spectroscopy (FTIR) reveals the existence of chemical bonding and functional groups are established and the occurrence of iron Fe in modes associated with iron Fe in addition to ZnO. The room temperature ferromagnetism was achieved in single or co-doped (Fe-Ni) with ZnO nanoparticles and is confirmed by magnetic characterization (VSM). It was perceived that magnetic saturation was improved in Fe-Ni Co-doped samples relative to pure or single doped. Also, the characterizations of samples show that the exchange interaction of Ni and Fe dominates over Ni-Ni and Fe-Fe interactions.

Style APA, Harvard, Vancouver, ISO itp.

Asma, F., W. Prasetyo, Priyono i I. Nurhasanah. "Synthesize of Cerium-doped ZnO nanoparticles as antioxidant agent". Journal of Physics: Conference Series 2190, nr 1 (1.03.2022): 012045. http://dx.doi.org/10.1088/1742-6596/2190/1/012045.

Pełny tekst źródła

Streszczenie:

Abstract Zinc oxide nanoparticles are potential metal oxide for antioxidant agent. This paper investigates antioxidant activity of cerium-doped zinc oxide (Ce-doped ZnO) nanoparticles. Ce-doped ZnO nanoparticles was prepared by precipitation method with calcination temperature of 200˚C. The product of precipitate was characterized by X-ray diffraction measurement, and UV-Vis spectrophotometer. The antioxidant activity of Ce-doped ZnO nanoparticles was investigated using 1,1-diphenyl-2-pcrylhydrazyl (DPPH) method. The X-ray diffraction pattern showed the growth of Ce-doped ZnO crystalline structure of hexagonal wurtzite with crystallite size of 42 nm. UV-Vis absorbance spectrum analysis revealed the band gap energy of Ce-doped ZnO nanoparticles was smaller than band gap energy of bulk ZnO. Ce-doped ZnO nanoparticles could scavenge DPPH free radicals and exhibited moderate antioxidant activity.

Style APA, Harvard, Vancouver, ISO itp.

Sohn, Hong Yong, i Arun Murali. "Plasma Synthesis of Advanced Metal Oxide Nanoparticles and Their Applications as Transparent Conducting Oxide Thin Films". Molecules 26, nr 5 (7.03.2021): 1456. http://dx.doi.org/10.3390/molecules26051456.

Pełny tekst źródła

Streszczenie:

This article reviews and summarizes work recently performed in this laboratory on the synthesis of advanced transparent conducting oxide nanopowders by the use of plasma. The nanopowders thus synthesized include indium tin oxide (ITO), zinc oxide (ZnO) and tin-doped zinc oxide (TZO), aluminum-doped zinc oxide (AZO), and indium-doped zinc oxide (IZO). These oxides have excellent transparent conducting properties, among other useful characteristics. ZnO and TZO also has photocatalytic properties. The synthesis of these materials started with the selection of the suitable precursors, which were injected into a non-transferred thermal plasma and vaporized followed by vapor-phase reactions to form nanosized oxide particles. The products were analyzed by the use of various advanced instrumental analysis techniques, and their useful properties were tested by different appropriate methods. The thermal plasma process showed a considerable potential as an efficient technique for synthesizing oxide nanopowders. This process is also suitable for large scale production of nano-sized powders owing to the availability of high temperatures for volatilizing reactants rapidly, followed by vapor phase reactions and rapid quenching to yield nano-sized powder.

Style APA, Harvard, Vancouver, ISO itp.

Amutha, A. "Structural and FTIR Studies of Pure and Zinc Doped SNO2NanoParticles". Advances in Materials Science and Engineering: An International Journal (MSEJ) 9, nr 3 (30.09.2022): 1–8. http://dx.doi.org/10.5121/msej.2022.9301.

Pełny tekst źródła

Streszczenie:

Pure and zinc-doped tin oxide nanoparticles were synthesized by the chemical co-precipitation method. The structural studies were carried out by X-Ray Diffraction pattern. XRD pattern reveals the tetragonal rutile structure of tin oxide nanoparticles. Fourier Transform Infrared Spectroscopy studies were used to identify the chemical information of pure and zinc-doped tin oxide nanoparticles. The crystallite size of pure tin oxide nanoparticles is 9 nm obtained from the X-ray diffraction pattern. The Zn ions are incorporated into the tin ions. It is suitable candidate for gas sensor applications.

Style APA, Harvard, Vancouver, ISO itp.

Więcej źródeł

Rozprawy doktorskie na temat "Fe-doped zinc oxide nanoparticles"

Allard, Garvin Richard Johan. "Synthesis and characterization of zinc-doped magnetic nanoparticles for diagnostic studies". University of the Western Cape, 2015. http://hdl.handle.net/11394/4815.

Pełny tekst źródła

Streszczenie:

Magister Scientiae - MSc
In the present study we report the synthesis and characterization of iron oxide magnetic nanoparticles doped with zinc in an attempt to enhance the magnetic properties. The nanoparticles were prepared via the co-precipitation route and capped with 3-phosphonopropionic acid (3-PPA). The amount of zinc dopant was varied to yield nanoparticles with the general formula ZnxFe3-xO4 (x=0, 0.1, 0.2, 0.3, 0.4). Characterization was carried out using high resolution transmission electron microscopy (HRTEM), X-ray diffraction spectroscopy (XRD), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and superconducting quantum interference device (SQUID) analysis. Results from HRTEM, XRD and SQUID confirm that doping took place and x=0.2 was found to be the doping limit for these nanoparticles with a maximum size of 10.73 nm and saturation magnetization of 73.37 emu/g. The EDS further confirmed successful doping with zinc, while FTIR and TGA confirmed successful capping with 3-PPA. Despite agglomeration at all doping levels, these nanoparticles show great potential for application in breast cancer diagnostic studies.

Style APA, Harvard, Vancouver, ISO itp.

Hagelin, Alexander. "ZnO nanoparticles : synthesis of Ga-doped ZnO, oxygen gas sensing and quantum chemical investigation". Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-64730.

Pełny tekst źródła

Streszczenie:

Doped ZnO nanoparticles were synthesized by three different methods – electrochemical deposition under oxidizing conditions (EDOC) , combustion method and wet chemical synthesis – for investigating the oxygen gas sensing response. Ga-doped ZnO was mostly synthesized but also In-doped ZnO was made. The samples were analyzed by XRD, SEM, EDX and TEM. Gas response curves are given alongside with Langmuir fitted curves and data for pure ZnO and Ga-doped ZnO. DFT quantum chemical investigation of cluster models ZnO nanoparticles were performed to evaluate defect effects and oxygen and nitrogen dioxide reactions with the ZnO surface. Defects were investigated by DOS and HOMO-LUMO plots , and are oxygen vacancy, zinc vacancy, zinc interstitial and gallium doping by replacing zinc with gallium. Oxygen and nitrogen dioxide reactions were investigated by computing Mulliken charges, bond lengths, DOS spectra and HOMO-LUMO plots.

Style APA, Harvard, Vancouver, ISO itp.

Magnan, Romain. "Oxyde transparent conducteur de ZnO : V à partir d'une cible de nanoparticules : de l’ablation par laser pulsé à un procédé de décharge à barrière diélectrique double fréquence à pression atmosphérique Transparent and conductive vanadium doped zinc oxide thin films by pulsed laser deposition from different targets Atmospheric pressure dual RF-LF frequency discharge: Influence of LF voltage amplitude on the RF discharge behavior Atmospheric pressure dual RF-LF frequency discharge: transition from α to α-γ-mode". Thesis, Perpignan, 2020. http://www.theses.fr/2020PERP0008.

Pełny tekst źródła

Streszczenie:

Cette thèse en cotutelle entre la France et le Canada a pour objectif de développer une méthode innovante d’élaboration de couches minces nano-composites de ZnO:V, basée sur la mise en vol et le dépôt de nanoparticules (NPs) de ZnO :V par des Décharges à Barrière Diélectrique (DBDs) double fréquence. Cette méthode de dépôt vise à réduire le coût de production par l’utilisation de nanoparticules synthétisées par méthode sol-gel et de DBDs dans une configuration permettant le dépôt de couches minces en continu à pression atmosphérique. Les travaux se sont déroulés en trois phases :- L’étude des OTC obtenus par ablation laser à partir d’une cible de NPs de ZnO:V(1 %at.) et de cibles métalliques de ZnV. La résistivité la plus faible (4 x 10 4 Ω.cm) est observée pour les dépôt faits à 250 °C à partir d’une cible de Zn :V(3 %at.) alors que les meilleures propriétés optiques sont celles d’une couche mince quasi-amorphe obtenue à 20 °C à partir de la cible de NPs de ZnO:V. Ces couches minces présentent une transmission de 40% dans l’UV à 250 nm, 90% dans le visible et 80% dans le PIR à 2500 nm) avec une résistivité de 6 x 10-2 Ω.cm. - La recherche et l’optimisation d’une source plasma DBD pour mettre en vol des NPs de ZnO:V dans une configuration compatible avec le dépôt de couches minces contrôlées. La démarche a consisté à chercher à accroître le flux et l’énergie des ions à la cathode en appliquant, sur une des électrodes, une tension radiofréquence (5 MHz) qui génère une forte densité d’ions (~2 x 1011/cm3) et sur l’autre électrode une tension basse fréquence (50 kHz) afin de transporter les ions vers la cathode. La première étape a été de bien comprendre la physique de la DBD RF-BF en couplant la caractérisation optique de la décharge et la modélisation fluide 1D. Lorsque la tension BF augmente, la décharge initialement RF en régime α bascule en régime α-γ durant 1/5 du cycle BF. Les résultats montrent qu’en régime γ la décharge est auto-entretenue dans la gaine et le flux d’ions à la cathode est multiplié par un facteur 7 alors que leur énergie s’accroit d’un facteur 4. L’étude expérimentale montre que lorsqu’une cible de NPs interagit avec une DBD RF-BF, des NPs sont mises en vol.- La conception et le test d’une configuration de réacteur DBD comprenant 2 zones plasmas successives : la première pour mettre en vol les NPs d’une cible, la deuxième pour déposer les NPs sur un substrat. Cette dernière est basée sur une DBD double fréquence BF-BF obtenue par application d’une tension 50 kHz qui génère des électrons pour charger les NPs et une tension 1 kHz dont on sait qu’elle peut assurer le transport des NPs chargées du volume vers les surfaces. La faisabilité a été montrée par l’observation de NPs sur le substrat
This thesis jointly supervised by France and Canada aims to develop an innovative method for the development of thin nanocomposite layers of ZnO: V, based on the sputtering and deposition of ZnO: V nanoparticles (NPs) using Double Frequency Dielectric Barrier Discharges (DBDs). This deposition method aims to reduce the cost of production by using nanoparticles synthesized by the sol-gel method and DBD in a configuration allowing the deposition of thin films continuously at atmospheric pressure. The work took place in three phases:- The study of TCO obtained by pulsed laser deposition from a target of NPs of ZnO: V (1% at.) and metal targets of ZnV. The lowest resistivity (4 x 10-4 Ω.cm) is observed for the deposits made at 250 ° C from a Zn: V target (3% at.) While the best optical properties are those of a quasi-amorphous thin layer obtained at 20 ° C from the NPs target of ZnO: V. These thin films have a transmission of 40% in UV at 250 nm, 90% in the visible and 80% in the PIR at 2500 nm) with a resistivity of 6 x 10-2 Ω.cm.- Research and optimization of a DBD plasma source to sputter ZnO: V NPs in a configuration compatible with the deposition of controlled thin films. The approach consisted in increase the flow and energy of the ions at the cathode by applying, on one of the electrodes, a radiofrequency voltage (5 MHz) which generates a high density of ions (~ 2 x 1011 / cm3) and on the other electrode a low frequency voltage (50 kHz) in order to transport the ions to the cathode. The first step was to understand the physics of the DBD RF-BF by coupling the optical characterization of the discharge and the 1D fluid modeling. When the LF voltage increases, the initially RF discharge in the α regime switches to the α-γ regime for 1/5 of the LF cycle. The results show that in γ regime the discharge is self-sustaining in the sheath and the flow of ions at the cathode is multiplied by a factor of 7 while their energy increases by a factor of 4. The experimental study shows that when an NPs target interacts with an RF-BF DBD, NPs are brought into flight.- The design and testing of a DBD reactor configuration comprising 2 successive plasma zones: the first to launch the NPs of a target, the second to deposit the NPs on a substrate. The latter is based on a double frequency BF-LF DBD obtained by applying a 50 kHz voltage which generates electrons to charge the NPs and a 1 kHz voltage which we know can ensure the transport of charged NPs from the volume to surfaces. The feasibility was shown by the observation of NPs on the substrate

Style APA, Harvard, Vancouver, ISO itp.

Kabongo, Guy Leba. "Luminescence investigation of zinc oxide nanoparticles doped with rare earth ions". Diss., 2013. http://hdl.handle.net/10500/14191.

Pełny tekst źródła

Streszczenie:

Un-doped, Tb3+ as well as Yb3+ doped ZnO nanocrystals with different concentrations of RE3+ (Tb3+, Yb3+) ions were successfully synthesized via sol-gel method to produce rare earth activated zinc oxide nanophosphors. The phosphor powders were produced by drying the precursor gels at 200˚C in ambient air. Based on the X-ray diffraction results, it was found that the pure and RE3+ doped ZnO nanophosphors were highly polycrystalline in nature regardless of the incorporation of Tb3+ or Yb3+ ions. Moreover, the diffraction patterns were all indexed to the ZnO Hexagonal wurtzite structure and belong to P63mc symmetry group. The Raman spectroscopy confirmed the wurtzitic structure of the prepared samples. Elemental mapping conducted on the as prepared samples using Scanning electron microscope (SEM) equipped with energy dispersive X-ray spectrometer (EDX) revealed homogeneous distribution of Zn, O, and RE3+ ions. The high resolution transmission electron microscope (HR-TEM) analyses indicated that the un-doped and RE3+ doped samples were composed of hexagonal homogeneously dispersed particles of high crystallinity with an average size ranging from 4 to 7 nm in diameter, which was in agreement with X-ray diffraction (XRD) analyses. ZnO:Tb3+ PL study showed that among different Tb3+ concentrations, 0.5 mol% Tb3+ doped ZnO nanoparticles showed clear emission from the dopant originating from the 4f-4f intra-ionic transitions of Tb3+ while the broad defects emission was dominating in the 0.15 and 1 mol% Tb3+doped ZnO. Optical band-gap was extrapolated from the Ultraviolet Visible spectroscopy (UV-Vis) absorption spectra using TAUC‟s method and the widening of the optical band-gap for the doped samples as compared to the un-doped sample was observed. The PL study of ZnO:Yb3+ samples was studied using a 325 nm He-Cd laser line. It was observed that the ZnO exciton peak was enhanced as Yb3+ions were incorporated in ZnO matrix. Furthermore, UV-VIS absorption spectroscopic study revealed the widening of the band-gap in Tb3+ doped ZnO and a narrowing in the case of Yb3+ doped ZnO system. X-ray photoelectron spectroscopy demonstrated that the dopant was present in the doped samples and the result was found to be consistent with PL data from which an energy transfer was evidenced. Energy transfer mechanism was evidenced between RE3+ and ZnO nanocrystals and was discussed in detail.
Physics
M.Sc. (Physics)

Style APA, Harvard, Vancouver, ISO itp.

Narayan, Laxmi. "Structural and magnetic properties of Al-doped yttrium iron aluminum garnet and optical properties of Mn, Sr, Fe-doped ZnO prepared by solution combustion method". Thesis, 2018. https://etd.iisc.ac.in/handle/2005/4882.

Pełny tekst źródła

Streszczenie:

The structural and magnetic properties of Al substituted yttrium-iron garnet (Y3AlxFe5-xO12, x = 0, 0.1, 0.2, 0.3, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6 and 1.8) ceramic powders synthesized using solution combustion method were investigated. For low Al content, Al3+ ions have preference to occupy tetrahedral (Td) sites than the octahedral (Oh) sites. At higher Al content the distribution of Al tends towards a ratio of 3:2 at the tetrahedral:octahedral site. Increase in Al doping results in the decrease in the lattice parameter due to smaller size of Al3+ as compared to Fe3+ ion. All the studied samples show coral-network-like surface morphology. The saturation magnetization (MS) values decrease from ∼26.94 emu/g to ∼ 0.17 emu/g with increase in Al content from 0.0 to 1.8. Further addition of Al makes the sample paramagnetic at RT. Substitution of non-magnetic Al3+ reduces the saturation magnetization rapidly due to the decrease in the superexchange interaction in the crystal. Furthermore, solution combustion synthesis of Mn, Sr or Fe-doped zinc oxide ceramic samples was carried out. All the samples were characterized by XRD, SEM and UV-DRS. The magnetic order of Fe in ZnO lattice of the Fe-doped ZnO samples was characterized by Mössbauer spectroscopy. The X-ray diffractograms determine the solubility limits of dopant in the host (ZnO) lattice. Electron micrographs confirmed the spongy network nanostructure of all the samples. The bandgap of the samples was estimated from Tauc plots of corresponding UV-DRS spectra. The spongy (high surface area) and low bandgap of Fe-ZnO renders it as an important candidate for photocatalytic applications. Our results show that among all these samples, Fe-doped zinc oxide nanoparticles can be the most suitable candidate for photocatalytic applications.

Style APA, Harvard, Vancouver, ISO itp.

Części książek na temat "Fe-doped zinc oxide nanoparticles"

Bagabas, Abdulaziz, Mohamed F. A. Aboud, Reda M. Mohamed, Zeid AL-Othman, Ahmad S. Alshammari i Emad S. Addurihem. "Synthesis, Characterization, and Cyanide Photodegradation Over Cupric Oxide-Doped Zinc Oxide Nanoparticles". W ACS Symposium Series, 327–38. Washington, DC: American Chemical Society, 2013. http://dx.doi.org/10.1021/bk-2013-1124.ch018.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Avdihodzic, Halida, Zerina Redzovic i Sabina Halilovic. "Application of Artificial Neural Network in modelling of photo-degradation suspension of manganese doped zinc oxide nanoparticles under visible-light irradiation". W IFMBE Proceedings, 137–41. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4166-2_21.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Ntozakhe, Luyolo, i Raymond Tichaona Taziwa. "Pyrolysis of Carbon-Doped ZnO Nanoparticles for Solar Cell Application". W Zinc Oxide Based Nano Materials and Devices. IntechOpen, 2019. http://dx.doi.org/10.5772/intechopen.82098.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Matysiak, W., M. Zaborowska i P. Jarka. "Manufacturing process and optical properties of zinc oxide thin films doped with zinc oxide nanoparticles". W Topical Issues of Rational Use of Natural Resources 2019, 553–57. CRC Press, 2019. http://dx.doi.org/10.1201/9781003014638-11.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Montalvo, Carlos, Claudia A. Aguilar, Rosa A. Martínez, Rosa M. Cerón, Alejandro Ruiz, Eric Houbron i Juan C. Robles. "Purification of Rainwater Using a Photocatalysis Technique to be Applied to Communities in Ciudad del Carmen, Campeche, Mexico". W Environmental Sciences. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.112579.

Pełny tekst źródła

Streszczenie:

Small communities far from the municipal seat do not have access to drinking water, so many children suffer from various gastrointestinal diseases, which cause these children to grow up with nutritional deficiencies. In the state of Campeche, there are 300 sunny days. This energy can be used to install water treatment systems to make it drinkable. Therefore, a treatment system with heterogeneous photocatalysis was proposed using a zinc oxide catalyst doped with silver nanoparticles. The reactor has a metal structure with a flat plate where clay plates support the catalyst. Samples were taken every 2 h to carry out the corresponding analyses and in a period of 8 h of reaction. For the characterization of rainwater adhered to Mexican regulations. The results showed that there was 6400 NMP/100 mL for fecal coliforms at the beginning, and after 4 h, this parameter goes to <2 NMP/100 mL. Initially, the same happened for fecal coliforms; 9200 NMP/100 mL was determined. After 4 h, this parameter drops to <2 NMP/100 mL. The same behavior was observed with chlorides, hardness, and total alkalinity, which showed a tendency to decrease significantly. This confirms that the system works properly to eliminate organic compounds and purify rainwater.

Style APA, Harvard, Vancouver, ISO itp.

Smirnova, Natalia, Irina Petrik, Oksana Linnik i Anna Eremenko. "Synthesis and photocatalytic properties of 3-d metal ions (Mn, Co, Ni, Cu, Fe) doped titania nanostructured films". W Biocompatible Hybrid Oxide Nanoparticles for Human Health, 67–83. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-815875-3.00005-9.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Streszczenia konferencji na temat "Fe-doped zinc oxide nanoparticles"

Kumar, Vinod, Sonia, Suman, Sacheen Kumar i Dinesh Kumar. "Synthesis and characterization of lanthanum doped zinc oxide nanoparticles". W INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2015): Proceeding of International Conference on Condensed Matter and Applied Physics. Author(s), 2016. http://dx.doi.org/10.1063/1.4946509.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Dodd, Aaron, Allan Mckinley, Martin Saunders i Takuya Tsuzuki. "Synthesis and Photocatalytic Activity of Doped Zinc Oxide Nanoparticles". W 2006 International Conference on Nanoscience and Nanotechnology. IEEE, 2006. http://dx.doi.org/10.1109/iconn.2006.340534.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Fernando, Mihiri, Rahul Singhal, Peter K. LeMaire i Binlin Wu. "Characterization of iron doped zinc oxide nanoparticles using fluorescence spectroscopy". W Frontiers in Optics. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/fio.2019.jw4a.44.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

YAN, Y., C. C. LI, X. Q. LI, S. Z. KANG i J. MU. "VISIBLE LIGHT PHOTOCATALYTIC ACTIVITY OF CHROMIUM-DOPED ZINC OXIDE NANOPARTICLES". W Proceedings of International Conference Nanomeeting – 2011. WORLD SCIENTIFIC, 2011. http://dx.doi.org/10.1142/9789814343909_0141.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Chauhan, Ruby, Ashavani Kumar, Ram Pal Chaudhary, S. K. Tripathi, Keya Dharamvir, Ranjan Kumar i G. S. S. Saini. "Synthesis And Optical Properties Of Nickel Doped Zinc Oxide Nanoparticles". W INTERNATIONAL CONFERENCE ON ADVANCES IN CONDENSED AND NANO MATERIALS (ICACNM-2011). AIP, 2011. http://dx.doi.org/10.1063/1.3653738.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Prasetyo, Wigih, Fatimah Asma, Priyono i Iis Nurhasanah. "Antibacterial activity of cerium-doped zinc oxide nanoparticles synthesized by precipitation method". W ADVANCES IN INTELLIGENT APPLICATIONS AND INNOVATIVE APPROACH. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0141665.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Aziz, Nur' Afiqah A., Muhammad Quisar Lokman, Sulaiman Wadi Harun, Wan Mohd Fazli Wan Nawawi i Fauzan Ahmad. "Zinc Oxide Nanoparticles-Chitin as Saturable Absorber in Erbium-doped Fiber Laser". W 2022 IEEE 9th International Conference on Photonics (ICP). IEEE, 2022. http://dx.doi.org/10.1109/icp53600.2022.9912479.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Kruefu, Viruntachar, Chaikarn Liewhiran, Chanitpa Khantha i Sukon Phanichphant. "Flame-made Nb-doped zinc oxide nanoparticles for application in polymer solar cells". W 2010 5th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS 2010). IEEE, 2010. http://dx.doi.org/10.1109/nems.2010.5592148.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Samuel, T., K. Sujatha, K. Ramachandra Rao i M. C. Rao. "Structural and photoluminescence properties of Cd and Cu co-doped zinc oxide nanoparticles". W INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2015): Proceeding of International Conference on Condensed Matter and Applied Physics. Author(s), 2016. http://dx.doi.org/10.1063/1.4946131.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Khatri, Amita, Viveka Jangra i Pawan S. Rana. "Efficient photocatalytic degradation of Rose Bengal dye by Cu doped zinc oxide nanoparticles". W DAE SOLID STATE PHYSICS SYMPOSIUM 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0017150.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!