1. Dual-functional Bi3+, Dy3+ co-doping ZnWO4 for photoluminescence and photocatalysis.
- Author
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Deng, Sheng, Zhang, Wei, Hu, Zhengfa, Feng, Zuyong, Hu, Peiju, Wu, Haoyi, Ma, Lun, Pan, Yongman, Zhu, Yanjuan, and Xiong, Guangting
- Subjects
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ZINC compounds , *SOLID state chemistry , *PHOSPHORS , *PHOTOLUMINESCENCE , *RHODAMINE B , *PHOTOCATALYSIS - Abstract
Dual-functional ZnWO4:Dy3+, Bi3+ were synthesized via high-temperature solid-state reaction method. The as-prepared samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), photoluminescence spectra and photocatalytic properties. The ZnWO4:Dy3+, Bi3+ phosphor shows photoluminescence with a broad band and the feature Dy3+ emission, and a high photocatalytic activity in degradation of Rhodamine B (RhB) under simulated UV irradiation. The result shows that doping Bi3+ in ZnWO4:Dy3+ can enhance light harvest capability to generate more electron-hole pairs, and acted as a trap center by decreasing the recombination of photogenerated electrons and holes. All of the results obtained by the work suggest that ZnWO4:Dy3+, Bi3+ phosphors are promising materials for the photocatalytic decomposition of pollutants. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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