仿生制备TiO_(2)/ZnO复合材料及其光催化性能研究  

Biomimetic Preparation of TiO_(2)/ZnO Composite and Its Photocatalytic Property

作　　者：吴瑞香[1] 梁雯婧 李乐健 郑婉淇 林伟楷 郑颂煜 柯倩微 Wu Ruixiang;Liang Wenjing;Li Lejian;Zheng Wanqi;Lin Weikai;Zheng Songyu;Ke Qianwei(Shantou Polytechnic,Shantou 515041,China)

机构地区：[1]汕头职业技术学院,广东汕头515041

出　　处：《山东化工》2023年第5期11-14,共4页Shandong Chemical Industry

基　　金：2021年广东省科技创新战略专项资金立项项目(pdjh2021b0916);汕头职业技术学院2020年院级科研课题(SZK2020Y01)。

摘　　要：利用结构仿生学的思想,以新鲜番薯叶为模板,利用浸渍-煅烧两步法成功制备出一系列叶片状的TiO_(2)/ZnO复合材料。利用SEM、XPS、XRD、BET等对复合材料进行表征。结果表明,复合材料由锐钛矿相TiO_(2)和纤锌矿相ZnO组成,保持了番薯叶片的多级复杂结构,具有介孔结构。光催化实验表明,TiO_(2)·6 h ZnO表现出最优的光催化性能。在室温下光照90 min, TiO_(2)·6 h ZnO对胭脂红水溶液的降解率可达到92.65%;动力学分析表明,TiO_(2)·x h ZnO复合材料对胭脂红溶液的降解反应均符合一级动力学模型。In this study,series of leaf shaped TiO_(2)/ZnO catalysis were successfully prepared by impregnation-calcination two-step using the idea of structural bionics.We use the fresh yam leaves as template.The catalysis were characterized by SEM,XPS,XRD and BET.The results show that the catalysis were composed of anatase TiO_(2) and wurtzite ZnO.The catalysis maintaine the complex structure of leaves and they have the mesoporous.The photocatalytic degradation of carmine solution show that TiO_(2)·6 h ZnO composite exhibits the best catalytic performance.At room temperature,the degradation rate of carmine solution by TiO_(2)·6 h ZnO can reach 92.65%for 90 min.Kinetic analysis shows that the degradation reaction of carmine solution by TiO_(2)·x h ZnO catalysis is consistent with the first-order kinetic model.

关 键 词：仿生制备 TiO_(2)/ZnO 番薯叶 光催化 

分 类 号：TQ426.8[化学工程]