超声分散法制备WS_2/TiO_2复合光催化剂及其光催化性能  

Ultrasonic dispersion method preparation and photocatalytic performance of WS_2/TiO_2 composite photocatalyst

作　　者：杜意恩 白杨[1] 刘毓芳[1] 蔡雪梅[1] 郭彦青[1] 

机构地区：[1]晋中学院化学化工学院,晋中030619

出　　处：《四川大学学报（自然科学版）》2017年第4期829-834,共6页Journal of Sichuan University(Natural Science Edition)

基　　金：晋中学院博士科研基金;山西高校科技研究开发项目(20121026)

摘　　要：本文采用超声分散方法制备WS2/TiO_2复合物,在光照条件下,对罗丹明B的降解效果进行了一系列研究.在确定WS_2与TiO_2的混合比例后,同时又对WS_2/TiO_2煅烧温度、煅烧时间、催化剂的用量、光照时间、光照功率、染料浓度等影响因素分别进行了讨论.实验结果表明,催化剂的量为1.00g/L、染料的初始浓度为10.00mg/L,WS_2/TiO_2(1∶11)、焙烧温度为350°C、焙烧时间为90min时,对罗丹明B染料的降解效果最佳.WS2/TiO2 composite was prepared by using the ultrasonic dispersion method, and the effect of degradation of Rhodamine B was studied under irradiation conditions. The influence factors on the deg- radation efficiency, such as calcination temperature and time of WS2/TiO2, the amount of catalyst, illu- mination time, irradiation intensity, and initial concentration of Rhodamine B were discussed, respec- tively. The experimental results revealed that the best degradation efficiency of Rhodamine B can be ob- tained at the amount of catalyst 1. 00 g/L, the initial concentration 10. 00 mg/L, the rn （WS2） ： m （TiO2） being 1 ： 11, temperature 350℃ and the calcination time 90 min.

关 键 词：二氧化钛 二硫化钨 催化性能 罗丹明B 降解率 

分 类 号：O657.32[理学—分析化学]