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Title: ZnWO{sub 4}–Cu system with enhanced photocatalytic activity by photo-Fenton-like synergistic reaction

Abstract

Highlights: ► A novel coupled system of ZnWO{sub 4}–Cu exhibited much higher catalytic activity than pure ZnWO{sub 4} with H{sub 2}O{sub 2} under UV-light irradiation. ► The enhanced catalytic activity of ZnWO{sub 4}–Cu system was due to the synergistic effect of photocatalysis and Fenton-like process. ► The possible mechanism of the synergistic effect was proposed. -- Abstract: A novel coupled system of ZnWO{sub 4}–Cu, combining two different advanced oxidation processes of photocatalysis and Fenton-like for the degradation of organic dyes, was successfully synthesized. The as-synthesized samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS). The nanosized ZnWO{sub 4}–Cu samples exhibited much higher catalytic activity than pure ZnWO{sub 4}. In the presence of the ZC-0.2, the MB solution was completely degraded (the degradation ratio reached 97.79%); while for the ZC-0, the degradation ratio was only 72.29%. The effects of the amount of Cu on the photocatalytic performance of ZnWO{sub 4}–Cu were investigated in detail. The result showed that the synergistic effect between Cu and ZnWO{sub 4} played a key role. The possible mechanism of the synergistic system was proposed.

Authors:
 [1]; ; ; ; ;  [1]
  1. College of Chemistry and Chemical Engineering, Anhui University, Key Laboratory of Anhui Province of Functional Inorganic Materials Chemistry, Hefei 230039 (China)
Publication Date:
OSTI Identifier:
22215565
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; HYDROGEN PEROXIDE; INORGANIC COMPOUNDS; IRRADIATION; NANOSTRUCTURES; PHOTOCATALYSIS; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY; ZINC TUNGSTATES

Citation Formats

Song, Jimei, Wang, Hong, Hu, Gang, Zhao, Shaojuan, Hu, Haiqin, and Jin, Baokang. ZnWO{sub 4}–Cu system with enhanced photocatalytic activity by photo-Fenton-like synergistic reaction. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.07.035.
Song, Jimei, Wang, Hong, Hu, Gang, Zhao, Shaojuan, Hu, Haiqin, & Jin, Baokang. ZnWO{sub 4}–Cu system with enhanced photocatalytic activity by photo-Fenton-like synergistic reaction. United States. doi:10.1016/J.MATERRESBULL.2012.07.035.
Song, Jimei, Wang, Hong, Hu, Gang, Zhao, Shaojuan, Hu, Haiqin, and Jin, Baokang. Thu . "ZnWO{sub 4}–Cu system with enhanced photocatalytic activity by photo-Fenton-like synergistic reaction". United States. doi:10.1016/J.MATERRESBULL.2012.07.035.
@article{osti_22215565,
title = {ZnWO{sub 4}–Cu system with enhanced photocatalytic activity by photo-Fenton-like synergistic reaction},
author = {Song, Jimei and Wang, Hong and Hu, Gang and Zhao, Shaojuan and Hu, Haiqin and Jin, Baokang},
abstractNote = {Highlights: ► A novel coupled system of ZnWO{sub 4}–Cu exhibited much higher catalytic activity than pure ZnWO{sub 4} with H{sub 2}O{sub 2} under UV-light irradiation. ► The enhanced catalytic activity of ZnWO{sub 4}–Cu system was due to the synergistic effect of photocatalysis and Fenton-like process. ► The possible mechanism of the synergistic effect was proposed. -- Abstract: A novel coupled system of ZnWO{sub 4}–Cu, combining two different advanced oxidation processes of photocatalysis and Fenton-like for the degradation of organic dyes, was successfully synthesized. The as-synthesized samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS). The nanosized ZnWO{sub 4}–Cu samples exhibited much higher catalytic activity than pure ZnWO{sub 4}. In the presence of the ZC-0.2, the MB solution was completely degraded (the degradation ratio reached 97.79%); while for the ZC-0, the degradation ratio was only 72.29%. The effects of the amount of Cu on the photocatalytic performance of ZnWO{sub 4}–Cu were investigated in detail. The result showed that the synergistic effect between Cu and ZnWO{sub 4} played a key role. The possible mechanism of the synergistic system was proposed.},
doi = {10.1016/J.MATERRESBULL.2012.07.035},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}