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利用溶胶-凝胶法制备纳米TiO2/电气石复合光催化剂,比较了纯TiO2、电气石粉体和复合催化剂的催化活性,并且从负载次数、活性大红溶液初始浓度方面进行了研究。结果表明,复合催化剂对活性大红有一定的降解作用,4g/L复合催化剂投入到初始浓度为20mg/L、体积为30mL的活性大红溶液中,紫外灯照射4h后,降解率可达到72.3%。
The photocatalyst of nano-TiO2 / tourmaline was prepared by sol-gel method. The catalytic activity of pure TiO2, tourmaline powder and composite catalyst was compared. The loading times and the initial concentration of active red solution were studied. The results showed that the composite catalyst had a certain degradation effect on the active red. The 4g / L composite catalyst was put into the active red solution with the initial concentration of 20mg / L and the volume of 30mL. The degradation rate of the composite catalyst reached 72.3% after irradiated by UV lamp for 4h.