硫化铋/钨酸铋/碳纳米管三元复合材料的制备及其光催化性能的研究  

Preparation of Bi_(2)S_(3)/Bi_(2)WO_(6)/CNTs composites and its application in photocatalytic degradation

作　　者：刘文杰[1] 孙静[1] 李信荣 左士祥[1] 姚超[1] 李霞章[1] LIU Wen-jie;SUN Jing;LI Xin-rong;ZUO Shi-xiang;YAO Chao;LI Xia-zhang(School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China)

机构地区：[1]常州大学石油化工学院,江苏常州213164

出　　处：《现代化工》2023年第11期172-178,共7页Modern Chemical Industry

基　　金：2018年江苏省重点研发计划(BE2018100);常州市科技支撑项目(社会发展)(CE20215031)。

摘　　要：采用一步水热法制备了硫化铋/钨酸铋/碳纳米管(Bi_(2)S_(3)/Bi_(2)WO_(6)/CNTs)三元复合材料,并通过XRD、SEM、TEM、XPS等手段对材料进行了表征。结果表明,当Bi_(2)S_(3)与Bi_(2)WO_(6)摩尔比为1∶1、水热处理时间为12 h时,复合材料表现出良好的光催化活性,即在90 min内对盐酸四环素(TCH)的光催化降解效率为92%。当复合材料循环使用3次后,催化效率仅略有下降,循环稳定性良好。Bi_(2)S_(3)/Bi_(2)WO_(6)/CNTs composites are prepared through one-step hydrothermal method,and well characterized by means of XRD,SEM,TEM,XPS,FT-IR,etc.The composites are used to degrade tetracycline hydrochloride(TCH)under visible light.It is found that the composites show good photocatalytic activity when the mole ratio of Bi_(2)S_(3) to Bi_(2)WO_(6) is 1∶1 and the hydrothermal treatment spends 12 h.Over the composites,the degradation of TCH reaches 92% within 90 minutes.After the composites have been recycled for three times,the catalytic efficiency only slightly decreases,representing a good cycle stability.

关 键 词：Bi_(2)S_(3)/Bi_(2)WO_(6)/CNTs 盐酸四环素 TCH 光催化降解 

分 类 号：O643[理学—物理化学]