TiO_2-SiO_2光催化纸业废水有色有机物的降解  

Photocatalytic Degradation of Color Organics over TiO_2-SiO_2 Samples in Making-paper Waste Water

作　　者：陈希慧[1] 潘艳坤[1] 黄初升[2] 罗思琴[1] 蔡民廷[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广西师范学院化学系,广西南宁530001

出　　处：《分子催化》2005年第3期172-176,i001,共6页Journal of Molecular Catalysis(China)

基　　金：广西教育厅资助项目(桂科教[2001]401).

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.Adsorptive and photocatalytic degradation efficiency of TiO_2-SiO_2 mixed oxides for color organics in paper-making waste water are studied. Adsorptive behavior of organics on TiO_2 follows Freundlich mode, Q_e = 0.239C_e^(0.791). Adsorptive efficiency of TiO_2-SiO_2 samples increased with Ti% of the samples. Photocatalytic degradation efficiency of TiO_2-SiO_2 samples increased with total acid amount on the sample surface.

关 键 词：TiO2-SiO2混合氧化物 纸业废水 有色有机物 光催化降解 吸附 

分 类 号：O643.32[理学—物理化学]