丝光沸石负载二氧化钛膜光催化降解邻氯苯酚

Photocatalytic oxidation of 2-chlorphenol using H-mordenite loaded TiO_2 film

利用溶胶法将TiO2负载在天然丝光沸石上制成TiO2薄膜,在125 W高压汞灯照射下,对邻氯苯酚溶液进行光催化氧化反应,研究负载后的催化剂活性。通过实验得出,沸石作为一种多孔性的催化剂载体,在反应中通过吸附作用增加催化剂表面的邻氯苯酚浓度,可显著提高光催化剂活性。

The TiO2 thin film coated on natural H-mordenite was prepared by sol-gel method. Under the irradiation of 125W high-pressure mercury lamp, the activity of loaded photocatalyst in the 2-chlorphenol solution was studied. The laboratorial results show that the presence of porous zeolite increases the concentration of 2-chlorphenol on the surface of catalyst, and consequently enhances the photocatalytic activity of TiO2.