纳米TiO2光催化降解活性染料研究

Nanometer TiO_2 Photocatalyse Degradation of Reactive Dyes

以钛酸四丁酯、乙醇等为原料,采用凝胶-溶胶法制得纳米TiO2,研究了纳米TiO2光催化降解活性艳蓝KNR、活性艳红K2G、活性翠蓝KGL和活性GR黑4种染料的降解效果.实验结果表明:TiO2对4种染料具有显著的光催化降解作用.同时分析了TiO2的投加量、溶液的初始浓度等因素对染料光催化降解效率的影响.

The TiO2 nanocrystal powders are synthesized by Sol-gel method. The photodegrada-tion efficiencies of Nanometer TiO2 to dyes wastewater （Reactive KNR, Reactive K2G, Reactive KGL, Reactive GR） have been studied . The results of the study show that the photodegradation efficiencies of the four dyestuffs solution is affected nanometer TiO2. The conclusion is that the concentration of TiO2, the concentration of dyestuff solution and so on, have a significant influence to the degradying function of Nanometer TiO2.