溶胶-凝胶法制备掺碳纳米管的活性研究

Up to now,nano-TiO2 is regarded as the best photocatalyst in semiconductors. As a photocatalyst, nano-TiO2 possessess many advantages:safety,innocuity, noside-effect,low-cost and no secondary pollution.However,there are still many problems in the application process of nano-TiO2 photocatalyst,such as,the lower activity under visible light,difficult to be recovered for direct-used of powder and easy to be deactivity.The semiconductor oxide as photocatalyst is a promising technique for the environmental mediation, and has been the hottest area for researchers. In the present,most research work focus on improving the activity of nano-TiO2 photocatalyst,which include revising preparation methods,element adultaration and surface modification.In this paper, TiO2, which load on CNTs, has been migrated. And their effects are studied by degradation of methyl orange, which is the maximum condition: The CNTs at 0.2(wt%) rate ,if 表活 added, the photocatalyst will be better.