In situ synthesis of floating BiOCl/EP photocatalyst and its photocatalytic degradation performance
YIN Jin-hui1, WANG Shuai2, LIU Xiang1
1. School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; 2. Jiangsu Lason Chemical Environmental Protection Co., Ltd., Wuxi 214222, China
Abstract: A novel floating BiOCl/EP photocatalyst is prepared by loading BiOCl onto the pores surface of expanded perlite (EP) through in situ deposition method.The prepared BiOCl/EP photocatalyst is characterized by a series of instruments.The results show that the degradation rate of Rhodamine B reaches 95.8% when 100 mL of Rhodamine B solution with a concentration of 15 mg·L-1 has been degraded by BiOCl/EP photocatalyst under simulated solar-light irradiation for 125 min, which is much higher than that by pure BiOCl.The enhancement in photocatalytic activity of BiOCl/EP composite can be mainly attributed to high-efficiency photogenerated electron-hole pair separation and migration via the formed Bi—O—Si bonds in BiOCl/EP, high-efficiency solar-light utilization and more reactive oxygen species (ROSs) production.The photocatalytic efficiency of BiOCl/EP still reaches 91.0% even after it has been used for 5 consecutive cycles.
尹金慧, 王帅, 刘湘. 漂浮型BiOCl/EP光催化剂的原位合成及其光催化降解性能[J]. 现代化工, 2022, 42(2): 177-182,187.
YIN Jin-hui, WANG Shuai, LIU Xiang. In situ synthesis of floating BiOCl/EP photocatalyst and its photocatalytic degradation performance. Modern Chemical Industry, 2022, 42(2): 177-182,187.
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