Y_2O_3/TiO_2纳米粒子超声光催化降解邻硝基苯酚  

Y_2O_3/TiO_2 Nanoparticles Sono-photocatalytic Degradation O-nitraphenol

作　　者：张继征[1] 张俊卿[2] 冯德荣[3] 

机构地区：[1]集宁师专化学系,内蒙古集宁012000 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010 [3]包头明天科技股份有限公司,内蒙古包头014010

出　　处：《内蒙古石油化工》2008年第8期1-3,共3页Inner Mongolia Petrochemical Industry

基　　金：内蒙古自然科学基金(200308020216)资助项目

摘　　要：以钛酸丁酯为原料,用溶胶——凝胶(Sol-gel)法制备了Y2O3/TiO2纳米粒子。采用X光衍射仪对粉体的粒径、物相进行了表征。研究了超声光催化协同降解水中邻硝基苯酚的效果,考察了超声波声强、反应温度和催化剂投加量对邻硝基苯酚降解速率的影响。研究结果表明:超声光催化协同降解要比单独超声波或光化学处理效果显著,证实了声光联合技术具有明显的协同效应。Nanometer Y2O3/TiO2 powder was obtained from tetrabutyl titanate by Sol--gel method. The phase and size were analyzed by XRD. O--nitraphenol solution was treated by sono--photocatalysis synergetic catalysis technology and the major influencing factors such as the sound intensity, the amount of catalyst and medium temperature were examined in this paper. The result showed that sono -- photo- catalysis synergetic technology was superior to each of ultrasound irradiation and photochemistry alone. The significant synergetic effect of sono--photocatalysis was identified.

关 键 词：溶胶——凝胶 Y2O3/TiO2 邻硝基苯酚 超声光催化 协同效应 

分 类 号：TB383[一般工业技术—材料科学与工程] X703[环境科学与工程—环境工程]