A study on the degradation of methamidophos in the presence of nano-TiO2 catalyst doped with Re

作者：Zhang Lei^*; Yan Fei; Su Mingming; Han Guangxi; Kang Pingli

来源：Russian Journal of Inorganic Chemistry, 2009, 54(8): 1210-1216.

DOI：10.1134/S0036023609080075

A new Re-doped nano-TiO2 photocatalyst was synthesized by immersion method. The novel doped nano-TiO2 photocatalyst utilizing visible light was firstly prepared. The doped nano-TiO2 powder was charactered by XRD, FTIR, UV-Vis, and its photocatalytic activity was tested through the photocatalytic degradation of methamidophos as a model compound under ultraviolet irradiating and in sunlight, respectively. In order to compare the photocatalytic activities, the same experiment was carried out for undoped nano-TiO2. The degradation ratio of methamidophos in the presence of doped nano-TiO2 reached 64.40% under sunlight for 12 h, which was 2.64% in the presence of undoped nano-TiO2. The degradation ratio of methamidophos in the presence of doped nanoTiO(2) reached 90.39% under UV irradiationat 2.5 h, which was 51.29% in the presence of undoped nano-TiO2. All the results show that the doped TiO2 is a promising photocatalyst using sunlight for treating the organophosphorous pesticide wastewater.

• 出版日期2009-8
• 单位辽宁大学