TiO_2薄膜光催化降解4-(2-吡啶偶氮)间苯二酚的研究

STUDIES ON THE PHOTOCATALYTIC DEGRADATION OF PAR USING TiO_2 THIN FILM

为了探索有机物 4 -( 2 -吡啶偶氮 )间苯二酚 ( PAR) ,在固定光催化剂上的降解行为 ,采用溶胶—凝胶法 ,在玻璃表面制得均匀透明的纳米 Ti O2 薄膜 ,并以其作光催化剂 ,在 2 54nm紫外光照射下 ,进行 PAR水溶液的光催化降解研究。研究了 PAR光催化降解率与溶液 p H值、PAR初始浓度、助催化剂 ( H2 O2 )浓度和不同光照条件的变化关系 ,得出了 Ti O2 薄膜的光催化降解

In order to investigate the degradation behavior of the organic 4 (2 pyridinesdiazoyl) resorcinol (PAR) on the supported photocatalyst.The evenly transparent TiO 2 thin film deposited on glass substrate was prepared by sol gel processing.The photocatalytic degradation of PAR in aqueous solution on TiO 2 coated glass was studied by using 254nm UV light as light source.The rate of photocatalytic degradation of PAR is pH values,PAR initial concentration,H 2O 2 concentrations and different lights were also investigated.The favorable conditions of the photocatalytic degradation of PAR were obtained.