ZnO Prepared by Solution Combustion Synthesis: Characterization and Application as Photoanode

Lucilha, Adriana Campano; Silva, Paulo R. C.; Lepre, Luiz Fernando; Ando, Rômulo Augusto; Dall’Antônia, Luiz Henrique

doi:10.5935/0103-5053.20140085

Cited by 9 publications

(3 citation statements)

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“…From this XRD patterns analysis, we determined peak intensity, position and width, full-width at half-maximum (FWHM) data. All the diffraction patterns indexed to the hexagonal wurtzite structure zincite phase of ZnO (23)(24)(25)(26) with crystal lattice 3.902 and 3.900 , respectively, which is in good agreement with the literature values (card No.01-070-2551) and (card No.01-36-1451) respectively. (Fig.…”

Section: Characterization Of Zinc Oxide Nanoparticles Thermal Gravimesupporting

confidence: 79%

“…Most of these techniques were Z not extensively used on a huge scale, but chemical synthesis has been widely used due to its simplicity and lower cost. In the present study, we report the preparation of ZnO nanoparticles using chemical precipitation (24) and autoignition (25) methods. The characterization of ZnO nanoparticles using different analytical tools is discussed.…”

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confidence: 99%

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Preparation and Characterization of Micro-Porous ZnO Nanoparticles

Hashem¹

2016

Egypt. J. Chem.

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Section: Characterization Of Zinc Oxide Nanoparticles Thermal Gravimesupporting

confidence: 79%

mentioning

confidence: 99%

Preparation and Characterization of Micro-Porous ZnO Nanoparticles

Hashem¹

2016

Egypt. J. Chem.

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“…We observe an almost total disappearance of the coloring agent after 180 min for the oxide prepared by the pulsed electrodeposition (PE) method and after a larger time for the ZnO prepared by direct electrodeposition (DE). This allows confirming that the photoelectrocatalytic activity of the reaction is due to ZnO, which absorbs UV radiation to produce reactive (OH * ) species [67], which lead to the degradation of the coloring agent MB in solution. The catalyst developed by pulsed electrodeposition reveals a photoelectrocatalytic efficiency superior to that of the catalyst prepared by direct electrodeposition.…”

Section: Study Of Zinc Oxide In the Photoelectrodegradation Of Methylmentioning

confidence: 65%

Effects of pulsed electrodeposition parameters on the properties of zinc oxide thin films to improve the photoelectrochemical and photoelectrodegradation efficiency

Lakhdari

Habelhames

Nessark

et al. 2018

Eur. Phys. J. Appl. Phys.

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Zinc oxide (ZnO) thin films were synthesized on ITO glass substrates by electrochemical deposition from a nitrate solution. The deposition potential, bath temperature and annealing temperature were fixed at −1.1 V versus SCE, 80 and 400 °C, respectively. Firstly, we prepared the ZnO thin films by two different electrochemical methods: direct (DE) and pulsed electrodeposition (PE). The results indicate that pulse electrodeposition improves the properties of ZnO thin films compared to direct electrodeposition technique. Secondly, we chose the PE method for the elaboration of ZnO thin films and we varied the time-On (ton) from 7 to 1 s. Deposited ZnO thin films were characterized using XRD, SEM, optical and photocurrent measurement. X-ray diffraction results indicate that the synthesized ZnO has a pure hexagonal wurtzite structure with a marked preferential orientation along the (002) plane perpendicular to the substrate. SEM analysis reveals that the electrodeposited nanosheets at time-On of 7 s are only hexagonal. A remarkable change in ZnO morphology from nanosheets to nanosheets/nanorods and decrease in gap energy is observed with the decrease in electrodeposition time-On. After optimization in electrodeposition time (ton), a significant improvement in photocurrent and Methylene Blue (MB) photoelectrocatalytical degradation were observed.

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