Study on the Efficiency of H2O2 Adding to the System Methylene Blue Degraded by TiO2/Palygorskite

摘要：

TiO2/palygorskite composites are prepared by the sol-gel method as follows.First,tetrabutyl titanate is used as the precursor,thell calcined at difierent temperatures to obtain catalyst with average size below 10 nm.The samples ale characterized by XRD,TEM.Study on the photocatalytic degradation of methylene blue over the catalysts shows that the TiO2/palygorskite calcined at 500℃ for 2h has perfect absorption and cataiytic properly.Moreover,H2O2 Can rapidly increase the degrading efficiency by TiO2/palygorskite.According to analysis of the degradation products,it is showed that when the initial concentration of methylene blue is 50 mg/L,and the concentration of H2O2 is 2 mmol/L,then the benzene ring and chromophoric groups get to diminished thoroughly after 10 minutes.

关键词： TiO2/palygorskite H2O2 photocatalyst methylene blue

作者: QING Chengsong YU Xinlin CHEN Tianhu

作者单位: School of Resource and Environment,Hefei University of Technology,Hefei 23009,China

会议类型: 国际会议

会议名称: The 2nd International Conference on Asian-European Environmental Technology and Knowledge Transfer(第二届亚欧环境技术及知识转化国际研讨会)

会议地点: 合肥

会议语种:英文

页码: 309-313

在线出版日期: 2008-06-05（万方平台首次上网日期，不代表论文的发表时间）