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Synthesis of nano-ZnO by wire explosion process and its photocatalytic activity
Prem Ranjan,
Published in Elsevier Ltd
2017
Volume: 5
   
Issue: 2
Pages: 1676 - 1684
Abstract
Zinc oxide (ZnO) nanoparticles were produced by wire explosion process and characterized through X-ray diffraction (XRD) studies and by TEM studies. The particle size analysis indicates that they follow log-normal distribution and the mean size of the ZnO nanoparticles formed is about 44 nm. Optical band gap of ZnO is found to be 3.21 eV by UV-vis diffuse reflectance spectroscopy (DRS). The synthesized ZnO nano particles were used as photo catalyst for degradation of methylene blue (MB) in aqueous solution. Nano zinc oxide of 100 mg/L was found as the optimum quantity for UV photo degradation of 10 mg/L MB. ZnO nanoparticles were verified for its reusability. The results of the study are compared with commercial ZnO nanoparticle and with Degussa P-25 TiO2. LC-MS studies were carried out to identify the intermediates and degradation pathway. © 2017 Elsevier Ltd. All rights reserved.
About the journal
JournalData powered by TypesetJournal of Environmental Chemical Engineering
PublisherData powered by TypesetElsevier Ltd
ISSN22133437
Open AccessNo
Concepts (24)
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    Aromatic compounds
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    Degradation
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    Energy gap
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    Metal nanoparticles
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    Nanoparticles
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    Normal distribution
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    Particle size
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    Particle size analysis
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    Reusability
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    Solutions
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    Synthesis (chemical)
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    Water treatment
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    Wire
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    X ray diffraction
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    Zinc
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    Degradation mechanism
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    DEGRADATION PATHWAYS
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    Log-normal distribution
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    Methylene blue
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    Photocatalytic activities
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    UV-VIS DIFFUSE REFLECTANCE SPECTROSCOPY
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    WIRE EXPLOSION
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    Zno nanoparticles
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    Zinc oxide