SrWO_(4)/Cd_(0.8)Zn_(0.2)S复合材料的制备及光催化性能  

Preparation and photocatalytic property of SrWO_(4)/Cd_(0.8)Zn_(0.2)S composites

作　　者：贾寒冰 郑楠 王宇 董晓丽 JIA Hanbing;ZHENG Nan;WANG Yu;DONG Xiaoli(School of Light Industry and Chemical Engineering,Dalian Polytechnic University,Dalian 116034,China)

机构地区：[1]大连工业大学轻工与化学工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2024年第6期424-428,共5页Journal of Dalian Polytechnic University

基　　金：国家自然科学基金项目(21878031).

摘　　要：采用二次溶剂热法制备了SrWO_(4)/Cd_(0.8)Zn_(0.2)S(SWO/CZS)复合光催化剂,利用XRD、SEM、DRS和电化学等表征手段对制备的SWO/CZS催化剂的结构、形貌及光学和光电化学特性进行了表征。通过在可见光照射下降解罗丹明B研究了SWO/CZS复合材料的光催化活性。与CZS相比,SWO/CZS显示出更优秀的光催化性能。SWO质量分数为15%时的复合样品15%SWO/CZS的光催化性能最佳。在可见光照射100min后,对罗丹明B的降解率达到92.3%,且在进行5次循环使用后15%SWO/CZS样品仍能保持较高的光催化活性。SrWO_(4)/Cd_(0.8)Zn_(0.2)S(SWO/CZS)composite photocatalysts were prepared by the two-step solvothermal method.The structure,morphology,optical and photoelectrochemical properties of the as-prepared SWO/CZS catalysts were characterized by XRD,SEM,DRS and electrochemical measurements.The photocatalytic activity of SWO/CZS composites was studied by degradation of Rhodamine B(RhB)under visible-light irradiation.Compared with CZS,SWO/CZS showed better photocatalytic performance.The 15%SWO/CZS composite sample with 15%SWO mass fraction has the best photocatalytic performance.The degradation rate of RhB reached 92.3% after 100 min under visible light irradiation,and the 15%SWO/CZS sample still maintained a high photocatalytic activity after five cycling tests.

关 键 词：硫锌镉 钨酸锶 异质结 光催化降解 

分 类 号：X703[环境科学与工程—环境工程]