自然光下有机膨润土负载含铁TiO2降解甲基红
Degradation of Methyl Red by Organobentonite/Iron Doping TiO2 Photocatalysts under Visible-light
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摘要: 以钛酸丁酯为原料,用溶胶-凝胶法制备以有机膨润土为载体的负载型TiO2光催化剂.采用分光光度法测试其光降解性能,讨论了影响甲基红降解的主要因素.结果表明:在pH=4.0时,光催化剂的用量为0.05 g/L,甲基红溶液的浓度为10 mg/L时,光照时间为60 min,甲基红的降解率可达98%Abstract: The organobentonite iron-doped TiO2 photocatalysts were prepared by sol-gel method using tetrabutyl titanate as reactant.The degradation property of methyl red was examined by spectrophotography.The results showed that the degradation rate of methyl red can reach 98% when the dosage of photocatalyst used was 0.05 g/L and the concentration of methyl red was 10 mg/L with 60 min reaction time at pH4 under visible light
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