Ag/ZIF-8复合材料的制备及其光降解性能  

Preparation and Photocatalytic Degradation of Ag/ZIF-8 Compounds

作　　者：乔丹妮 徐洁[1] 李东祥[1] QIAO Danni;XU Jie;LI Dongxiang(College of Chemistry and Molecular Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2024年第2期29-37,共9页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金项目(21975139).

摘　　要：在无表面活性剂微乳液中制备了ZIF-8材料,并采用光致还原法将纳米Ag负载于ZIF-8表面,制备了负载量不同的系列Ag/ZIF-8复合材料。XRD、SEM、XPS、UV-DRS以及光电性能测试表明Ag成功负载到ZIF-8中,且光电性能大幅度提高。对比考察了ZIF-8和Ag/ZIF-8对有机染料的光降解效率,提出了光催化机理。由于Ag纳米粒子和ZIF-8的协同效应,其所形成的异质结构Ag/ZIF-8表现出了优异的光催化活性。In this work,Ag/ZIF-8 with high photocatalytic activity was facilely synthetized by integrating ZIF-8 and Ag,in which the ZIF-8 nanoparticles were synthesized using a reverse SFME route for the first time.The prepared photocatalyst was characterized by SEM,XRD,XPS,UV-DRS and electrochemical workstation.Results showed that Ag nanoparticles have successfully assembled on the surface of ZIF-8 and exhibit excellent electrochemical properties.Subsequently,Ag/ZIF-8 was employed as a visible-light photocatalytic material for degradation of organic dyes,and the possible reaction mechanism was proposed.Owing to synergic effect between ZIF-8 and Ag and the hetero-junction structure,the unique Ag/ZIF-8 composite exhibited highly efficient photocatalytic degradation performance.

关 键 词：Ag/ZIF-8复合材料 无表面活性剂微乳液 光降解 

分 类 号：TQ317.4[化学工程—高聚物工业]