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现代化工  2022, Vol. 42 Issue (2): 177-182,187    DOI: 10.16606/j.cnki.issn0253-4320.2022.02.036
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
漂浮型BiOCl/EP光催化剂的原位合成及其光催化降解性能
尹金慧1, 王帅2, 刘湘1
1. 江南大学化学与材料工程学院, 江苏 无锡 214122;
2. 江苏蓝必盛化工环保股份有限公司, 江苏 无锡 214222
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
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摘要 通过原位沉积法将BiOCl负载到膨胀珍珠岩(EP)孔隙表面,制备出新型漂浮型BiOCl/EP光催化剂,并通过一系列手段对样品进行表征。结果表明,在模拟太阳光照射下,BiOCl/EP复合材料在125 min内对100 mL 15 mg/L罗丹明B溶液的降解率可达95.8%,远高于纯BiOCl。光催化活性的提高主要归因于BiOCl/EP复合材料中的Bi—O—Si键可作为电子传输通道促进光生电子-空穴对的分离和迁移、更高效的太阳光能利用率以及活性氧物种产生的效率。经过5次连续循环使用后,该复合物的光催化降解效率仍可达到91.0%。
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尹金慧
王帅
刘湘
关键词:  BiOCl  膨胀珍珠岩  漂浮型光催化剂  模拟太阳光驱动    
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.
Key words:  BiOCl    expanded perlite    floating photocatalyst    simulated solar light driven
收稿日期:  2021-03-06      修回日期:  2021-12-16          
ZTFLH:  TB333  
通讯作者:  刘湘(1964-),男,硕士,教授,研究方向为新型光催化材料降解有机污染物,通讯联系人,liuxiang@jiangnan.edu.cn。    E-mail:  liuxiang@jiangnan.edu.cn
作者简介:  尹金慧(1996-),女,硕士研究生,研究方向为铋基光催化材料,yinjinhui0811@qq.com
引用本文:    
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.
链接本文:  
https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2022.02.036  或          https://www.xdhg.com.cn/CN/Y2022/V42/I2/177
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