生物法还原制备Au/TiO2催化剂及其催化性能的研究  

The Synthesis of Au/TiO2 Catalyst by Bio-Reduction and Its Catalytic Properties

作　　者：董艳萍[1] 赵宏吉 祖余洋 罗金涛 周柏冰 Dong Yanping(Department of Food and Pharmaceutical Engineering,Suihua College,Suihua 152061)

机构地区：[1]绥化学院食品与制药工程学院,黑龙江绥化152061

出　　处：《绥化学院学报》2020年第9期147-150,共4页Journal of Suihua University

基　　金：黑龙江省大学生创新创业训练计划项目:AuTiO2催化剂的设计合成及催化性能研究(201910236011),黑龙江省教育厅基本科研业务费:1,3-二酮类稀土配合物的合成及性能研究(KYYWF10236180110),绥化学院第四届科研创新团队:功能金属有机与催化新材料(SIT04B004),2018年绥化学院科研启动基金项目:β-二酮稀土配合物分子磁性及荧光性能研究(SQ18002)。

摘　　要：利用三嵌段共聚物F127为表面活性剂,钛酸四丁酯(TBOT)为钛源,采用溶胶-凝胶法制备出TiO2纳米粒子。通过生物还原技术将Au纳米粒子负载在TiO2载体上,得到Au/TiO2催化剂。通过XRD和TEM手段对催化剂进行表征,以对硝基苯酚(4-NP)为模型反应考察了Au/TiO2催化剂催化性能。实验表明,生物法还原制备的Au/TiO2催化剂具有较好的催化4-NP还原生成4-AP性能。TiO2 nanoparticles were prepared by sol-gel method using TBOT as precursor and F127 as surfactant. In addition, Au/TiO2 catalysts was fabricated using a green bio-reductive method with Sweet sorghum stalk(SWS) extract. The XRD and TEM was carried out to investigate the influence of the prepared method on the surface Au species. The catalytic performance of Au/TiO2 catalyst was studied by using pnitrophenol(4-NP) as model. The results showed that the Au/TiO2 catalyst had good catalytic hydrogenation of4-NP to 4-AP.

关 键 词：生物还原法 Au/TiO2催化剂 溶胶-凝胶法 4-硝基苯酚 

分 类 号：O613.71[理学—无机化学]