1. Synthesis of Ti4+-doped ZnWO4 phosphors for enhancing photocatalytic activity.
- Author
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Pan, Yong-Man, Zhang, Wei, Hu, Zheng-Fa, Feng, Zu-Yong, Ma, Lun, Xiong, De-ping, Hu, Pei-Ju, Wang, Yin-Hai, Wu, Hao-yi, and Luo, Li
- Subjects
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PHOSPHORS , *INORGANIC synthesis , *PHOTOCATALYSIS , *SOLID state chemistry , *CRYSTAL morphology , *CRYSTAL structure - Abstract
Abstract Ti4+-doped ZnWO 4 phosphors were synthesized by a facile solid state reaction route. The structural and morphological features of the as-synthesized Ti4+-doped ZnWO 4 photocatalysts were intensively characterized by XRD(X-ray diffraction), XPS(X-ray photoelectron spectroscopy), UV–vis DRS(Ultraviolet-visible diffuse reflectance spectrum), PL(photoluminescence spectroscopy). The photocatalytic reaction tests have been decomposed by the solution of rhodamine B(RhB). The results showed that the Ti4+ -doped ZnWO 4 phosphors had a high photocatalytic activity, and RhB degradation rate of 97% within 120 min was achieved for the 0.01Ti4+-doped sample. The enhancement of photocatalytic performance for Ti4+-doped ZnWO 4 samples can be ascribed to reduce the recombination rate of photogenerated electron-hole pairs with the formation of new defects by Ti4+ doping. This study suggests that Ti4+-doped ZnWO 4 photocatalysts are promising for photocatalytic decomposition of organic contaminants. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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