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TiO₂-SiO₂光催化纸业废水有色有机物的降解

Photocatalytic Degradation of Color Organics over TiO₂-SiO₂ Samples in Making-paper Waste Water

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【Author】 CHEN Xi-hui~1, PAN Yan-kun~(1,3), HUANG Chu-sheng~2, LUO Si-qin~1, CAI Min-ting~1(1. Chemistry and Chemical Engineering College, Guangxi University, Nanning, 530004, China; 2. Department of Chemistry, Guangxi Teachers’ College, Nanning , 530001, China; 3. Guangxis’ Technology Research Center of Analysis measurement & test, Nanning, 530022, China)

【机构】广西大学化学化工学院；广西师范学院化学系；广西大学化学化工学院广西南宁530004；广西南宁530004广西分析测试研究中心；广西南宁530022；广西南宁530001；广西南宁530004；广西南宁530004；

【摘要】研究了TiO2-SiO2混合氧化物对纸业废水中有色有机物的吸附与光催化降解效率.常温下,TiO2对纸业废水中有色有机物的吸附符合Freundlich模型,Qe=0.239Ce0.791.TiO2-SiO2混合氧化物对纸业废水中有色有机物的吸附与光催化降解效率与催化剂样品的组成有关,光催化降解效率也与TiO2-SiO2表面总酸量有关.更多还原

【Abstract】 Adsorptive and photocatalytic degradation efficiency of TiO₂-SiO₂ mixed oxides for color organics in paper-making waste water are studied. Adsorptive behavior of organics on TiO₂ follows Freundlich mode, Q_e = 0.239C_e^0.791. Adsorptive efficiency of TiO₂-SiO₂ samples increased with Ti% of the samples. Photocatalytic degradation efficiency of TiO₂-SiO₂ samples increased with total acid amount on the sample surface.更多还原