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Synthesis and Characterization of WO3/CeO2Heterostructured Nanoparticles for Photodegradation of Indigo Carmine Dye
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Document Title
Synthesis and Characterization of WO3/CeO2Heterostructured Nanoparticles for Photodegradation of Indigo Carmine Dye
Author
Channei D., Chansaenpak K., Phanichphant S., Jannoey P., Khanitchaidecha W., Nakaruk A.
Name from Authors Collection
Affiliations
Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok, 65000, Thailand; Centre of Excellence for Innovation and Technology for Water Treatment, Naresuan University, Phitsanulok, 65000, Thailand; National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Pathum Thani, 12120, Thailand; Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Department of Biochemistry, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand; Department of Civil Engineering, Faculty of Engineering, Naresuan University, Phitsanulok, 65000, Thailand; Department of Industrial Engineering, Faculty of Engineering, Naresuan University, Phitsanulok, 65000, Thailand
Type
Article
Source Title
ACS Omega
ISSN
24701343
Year
2021
Volume
6
Issue
30
Page
19771-19777
Open Access
Gold, Green
Publisher
American Chemical Society
DOI
10.1021/acsomega.1c02453
Abstract
WO3/CeO2 heterostructured nanocomposites containing different WO3 ratios (0.1, 0.3, 0.5, and 1.0 wt %) were synthesized by a precipitation method. The coupling of CeO2 and WO3 with a high specific surface area noticeably enhanced the photocatalytic activity of indigo carmine (IC) degradation under visible-light irradiation. The degradation rate constants (k) of 0.5 wt % WO3/CeO2 nanocomposites reached 4 and 5 times higher than those of CeO2 and WO3, respectively. Regarding the experimental results, the X-ray diffraction (XRD) patterns of the CeO2 spherical nanoparticles and rod-shaped WO3 were assigned to the cubic fluorite and orthorhombic phase structures, respectively. The increasing photocatalytic activity of nanocomposite samples could be attributed to the heterojunction of the photocatalysts with efficient charge separation and strong oxidative ability, which were confirmed by the photoluminescence spectra and diffuse reflectance spectrometry. The staggered heterojunction of the nanocomposite promoted efficient electron transfer and suppressed the recombination of photogenerated electrons and holes during the process. © 2021 The Authors. Published by American Chemical Society.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
Funding Sponsor
Naresuan University
License
CC BY-NC-ND
Rights
Author
Publication Source
Scopus