Preparation of TiO2 photocatalyst film and its catalytic performance for 1,1′-dimethyl-4,4′-bipyidium dichloride decomposition

摘要: A pure TiO2 colloidal solution for a catalyst with high photocatalytic activity was obtained by thermal hydrolysis of titanium tetra-iso-propoxide (TTIP). The film on pyrex plate, which dip-coated the solution, characterized XRD and SEM analyses. It confirmed that exhibited uniform anatase structure particle size <45 nm thickness about 200 nm in one-time coating. To investigate performance 1,1′-dimethyl-4,4′-bipyidium dichloride (Paraquat) destruction, directly fixed UV-lamp dip-coating method. conversion Paraquat remarkably increased prepared hydrothermal method compared sol–gel method; particular, reached above 95% after 15 h. In addition, stably attached surface reaction. But partially taken off surface. Therefore, this study, it very reliable synthesis thin catalytic performance.