光催化氧化降解水体中4-硝基酚实验研究  

Study of Photocatalytic Oxidation Degradation of 4-nitrophenol in Wastewater

作　　者：夏浩 吴慧 许德昇 杨程明 柯军 Xia Hao;Wu Hui;Xu Desheng;Yang Chengming;Ke Jun(Hubei Quanyu Technology Co.,Ltd.,Wuhan 430703;School of Chemistry and Environmental Engineering,Wuhan Institute of Technology,Wuhan 430205,China)

机构地区：[1]湖北铨誉科技有限公司,湖北武汉430703 [2]武汉工程大学化学与环境工程学院,湖北武汉430205

出　　处：《广东化工》2021年第5期94-95,99,共3页Guangdong Chemical Industry

基　　金：湖北省自然科学基金(2019CFB556)。

摘　　要：采用水热法成功制备了WS2/WO3光催化剂。降解实验结果表明WS2/WO3复合光催化剂在模拟太阳光照射下能对4-硝基酚进行有效地降解,反应3小时的转化率为56%,是单一WO3催化剂的11倍。此外,光催化自由基实验结果表明,羟基自由基(·OH)和空穴(h+)是WS2/WO3复合材料光催化降解对硝基苯酚的两个主要活性物种。The WS2/WO3 composite catalysts were successfully fabricated via a hydrothermal method. The results demonstrate that WS2 could not only extend photo-response range of WS2/WO3 photocatalyst but also enhance the photogenerated electron-hole separation efficiency. The photocatalytic degradation of 4-nitrophenol over WS2/WO3 composite under simulated solar light irradiation is evaluated, where the conversion efficiency over WS2/WO3 composite is 56 % in 3 h, which is 11 times higher than that of WO3. In addition, radical capture experiment show that the hydroxyl radicals and holes are the predominant active spices in photocatalytic degradation of 4-nitrophenol.

关 键 词：WO3 WS2 复合催化剂 4-硝基酚 光催化 

分 类 号：TQ[化学工程]