溴化氧铋（BiOBr）光催化降解亚甲基蓝的研究

华东师范大学学报(自然科学版) ›› 2014, Vol. 2014 ›› Issue (4): 122-131.

溴化氧铋（BiOBr）光催化降解亚甲基蓝的研究

朱培娟¹，陈薇¹，李春艳²，赵雅萍¹

1.华东师范大学环境科学系，上海 200241； 2.包头市环境监控与应急指挥中心，内蒙古自治区包头 014060

收稿日期:2013-07-01 修回日期:2013-10-01 出版日期:2014-07-25 发布日期:2014-07-25

Study on photocatalytic degradation of methylene blue by BiOBr under visible light

ZHU Pei-juan¹, CHEN Wei¹, LI Chun-yan², ZHAO Ya-ping¹

1.Department of Environmental Science, East China Normal University, Shanghai 200062， China；
2.Baotou City Environmental Monitoring and Emergency Command Center, Baotou Inner Mongolia 014060， China

Received:2013-07-01 Revised:2013-10-01 Online:2014-07-25 Published:2014-07-25

摘要/Abstract

摘要： 主要研究了外界条件如pH、催化剂用量和反应液浓度对可见光催化溴化氧铋（BiOBr）降解亚甲基蓝溶液性能的影响和降解机理推断.通过添加各种自由基清除剂深入探讨了其对反应体系中活性氧自由基的抑制作用，从而推测溴化氧铋（BiOBr）降解亚甲基蓝的反应机理，并确定在该反应中起主要作用的活性氧形态.

关键词: BiOBr, 亚甲基蓝, 光催化剂, 可见光, 活性氧形态

Abstract: This paper studied the photocatalytic degradation of the methylene blue (MB) by BiOBr under visible light. The influence factors, such as pH, amount of catalysts and the concentrations of reaction solution were investigated so as to check the performance of the process and understand the mechanism of degradation of MB. The inhibition of reactive oxygen species (ROS) in the reaction system was determined by adding various radical scavengers. Above results help to deduce photodegradation mechanism of MB catalyzed by BiOBr and the mainly active oxygen species in the reaction system.

Key words: BiOBr, methylene blue, photocatalyst, visible light, ROS

中图分类号:

X132

朱培娟，陈薇，李春艳，赵雅萍. 溴化氧铋（BiOBr）光催化降解亚甲基蓝的研究[J]. 华东师范大学学报(自然科学版), 2014, 2014(4): 122-131.

ZHU Pei-juan, CHEN Wei, LI Chun-yan, ZHAO Ya-ping. Study on photocatalytic degradation of methylene blue by BiOBr under visible light[J]. Journal of East China Normal University(Natural Sc, 2014, 2014(4): 122-131.

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