钨酸锌/磷酸银复合光催化剂的制备及光催化性能  

Preparation and photocatalytic properties of ZnWO4/Ag3PO4 composite photocatalyst

作　　者：周健[1] 汤洪波[1] Zhou Jian;Tang Hongbo(Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology,Yichun University,Yichun,336000,China)

机构地区：[1]宜春学院,江西省高校应用化学与化学生物学重点实验室,江西宜春336000

出　　处：《无机盐工业》2020年第6期101-104,共4页Inorganic Chemicals Industry

基　　金：江西省教育厅科技项目(铯钨青铜基近红外吸收材料的能带、形貌调控及其应用研究)(GJJ161022);基于多元醇法的纳米银在多种载体表面的绿色镀附(GJJ161035)。

摘　　要：采用水热法合成钨酸锌(Zn WO4)粉体,再通过原位沉淀法将磷酸银(Ag3PO4)聚集于ZnWO4表面制备ZnWO4/Ag3PO4复合光催化剂。通过罗丹明B光催化降解实验,探讨Ag3PO4含量对ZnWO4/Ag3PO4材料光催化性能的影响。结果表明,当复合粉体中Ag3PO4质量分数超过40%时,其光催化性能比单一成分的Ag3PO4催化剂更优。Ag3PO4质量分数为50%时,复合材料的光催化性能最佳,循环使用5次后其光催化效率仍可达到90%以上。Zinc tungstate(ZnWO4) powder was synthesized by hydrothermal method.Ag3PO4 was aggregated on the surface of ZnWO4by in situ precipitation,resulting in formation of Zn WO4/Ag3PO4 composite photocatalyst.Effect of Ag3PO4 content on photocatalytic performance of ZnWO4/Ag3PO4 was investigated by photocatalytic degradation of Rhodamine B.The results showed that the photocatalytic performance of Zn WO4/Ag3PO4 composites was better than that of the photocatalyst with single material when the mass fraction of Ag3PO4 was over 40%.The photocatalytic performance of the composites with Ag3PO4 mass fraction of 50% was the best,and the photocatalytic efficiency remained over 90% after five cycles.

关 键 词：钨酸锌 磷酸银 光催化 罗丹明B 

分 类 号：TQ131.22[化学工程—无机化工]