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Nanosheets-assembled Bi2WO6 microspheres with efficient visible-light-driven photocatalytic activities
Materials Characterization ( IF 3.562 ) Pub Date : 2020-03-27 , DOI: 10.1016/j.matchar.2020.110297
Xiaoxia Guo; Dan Wu; Xia Long; Zihan Zhang; Fenglin Wang; Guanghua Ai; Xiaohe Liu

The nanosheet-assembled Bi2WO6 microspheres could be successfully synthesized in large quantities by a facile hydrothermal strategy in the presence of surfactant hexadecyl trimethyl ammonium bromide (CTAB) and polyvinylpyrrolidone (PVP) under mild conditions. The morphology and size of as-prepared Bi2WO6 could be readily controlled by adjusting the synthetic parameters such as hydrothermal time. The probable formation mechanism of nanosheet-assembled Bi2WO6 microspheres was discussed in detail. The hierarchical nanosheet-assembled microspheres could be constructed by orderly arranged nanosheets. The photocatalytic activity of the nanosheet-assembled Bi2WO6 microspheres was evaluated by degrading rhodamine B (RhB) under irradiation of visible light. The brilliant photodegradation efficiency is about 98% under visible light irradiation for 50 min. The results suggest that the as-prepared Bi2WO6 microspheres have good prospects as the photocatalyst for the removal of organic pollutants.

更新日期:2020-03-27

 

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