光子晶体光催化剂修饰的微反应器制备及其光催化性能研究  

Preparation and Photocatalytic Performance of Microreactors Modified withPhotonic Crystal Photocatalysts

作　　者：张天琪 章豪 卢志烨 龚作为 叶美英[1] ZHANG Tianqi;ZHANG Hao;LU Zhiye;GONG Zuowei;YE Meiying(College of Material,Chemistry and Chemical Engineering,Hangzhou Normal University,Hangzhou 311121,China)

机构地区：[1]杭州师范大学材料与化学化工学院,浙江杭州311121

出　　处：《杭州师范大学学报（自然科学版）》2023年第5期449-453,477,共6页Journal of Hangzhou Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(22074027).

摘　　要：采用聚苯乙烯(polystyrene,PS)微球为光子晶体模板,用溶胶-凝胶法在微流控芯片通道中制备TiO 2反蛋白石.在PS蛋白石模板中填充TiO 2溶胶,在500℃下煅烧8 h去除PS模板,得到具有较高光催化性能的TiO 2反蛋白石催化剂.通过考察罗丹明B(RhB)溶液在TiO 2反蛋白石修饰的微反应器中的光催化降解率,分析微反应器的光催化性能.5 mg/L RhB在流速50μL/h、光催化反应时间7 min、光辐照度100 mW/cm 2时,降解率达到100%.Using polystyrene(PS)microspheres as photonic crystal templates,TiO 2 inverse opal were prepared in the channels of microfluidic chips with sol-gel method.TiO 2 sol was filled in PS opal templates and calcined at 500℃for 8 h to remove PS templates.TiO 2 inverse opal catalyst with higher photocatalytic performance was obtained.The photocatalytic performance of the TiO 2 inverse opal modified microreactor was determined by analyzing the photocatalytic degradation rate of rhodamine B(RhB)in this microreactor.When the flow rate of 5 mg/L RhB was 50μL/h,the photocatalytic reaction time was seven minutes,and the light intensity was 100 mW/cm 2,the degradation could reach 100%.

关 键 词：TiO 2反蛋白石 微反应器 RHB 光催化降解 

分 类 号：O657.99[理学—分析化学]