异质节型SnO_(2)/TiO_(2)制备及其吸附和固相光催化性能的研究  

Preparation of heterojunction SnO_(2)/TiO_(2)and its adsorption and solid-phase photocatalytic performance

作　　者：郭小峰 卓煜 杨磊 邹锐 Guo Xiaofeng;Zhuo Yu;Yang Lei;Zou Rui(School of Materials Science and Engineering,Chongqing Jiaotong University,Chongqing 400074)

机构地区：[1]重庆交通大学材料科学与工程学院,重庆400074

出　　处：《化工新型材料》2025年第2期193-196,共4页New Chemical Materials

基　　金：国家自然基金(12302167);重庆市科学技术委员会基础与前沿研究计划(cstc2014jcyjA2/30017);山区桥梁与隧道工程国家重点实验室培育基地开放基金(CQSLBF-Y15-6,CQSLBF-Y14-5);国家内河航道整治工程技术研究中心开放基金(SLK2013A03);重庆交通大学实验教学改革与研究基金重点项目(Syj201703);大学生创新创业训练计划项目(X202010618077,S202110618005)。

摘　　要：采用两步水热法制备SnO_(2)/TiO_(2)复合体光催化剂,以亚甲基蓝(MB)为模拟污染物分别用SnO_(2)质量分数为2%、5%、10%的SnO_(2)/TiO_(2)复合体及纯TiO_(2)纳米管做吸附和固相光催化性能实验。吸附实验表明,催化剂均展示出快速的吸附速率,在3min基本都达到吸附平衡。光催化实验结果表明,5%SnO_(2)/TiO_(2)复合体固相光催化效果最好,其12h后光催化效率达到了44.1%。In this paper,a two-step hydrothermal method was employed to successfully prepare SnO_(2)/TiO_(2)composite photocatalysts,and then adsorption and solid-phase photocatalytic performance experiments were performed with SnO_(2)/TiO_(2)composites(SnO_(2)mass ratios of 2wt%,5wt%,10wt%)and pure TiO_(2)nanotubes,respectively,using methylene blue(MB)as a simulated pollutant.The adsorption experiments showed that all catalysts demonstrated rapid adsorption rate,and the adsorption equilibrium was basically reached in 3 min.The photocatalytic experiments indicated that the 5 wt%SnO_(2)/TiO_(2)composite had the best solid-phase photocatalytic effect,and its photocatalytic efficiency reached 44.1%after 12h.

关 键 词：二氧化钛纳米管 SnO_(2)/TiO_(2)复合体 固相光催化 亚甲基蓝 

分 类 号：TQ12[化学工程—无机化工] O643[理学—物理化学]