非均相高级氧化对橙黄Ⅱ脱色和毒性消除研究

Discoloration and elimination detoxifying of OII by heterogeneous advanced oxidation

制备并表征了介孔分子筛TiO2微球,研究了不同pH值条件下的紫外光催化降解橙黄Ⅱ的脱色和矿化效果,硫酸根的生成率,发光细菌的相对发光度和催化剂的重复利用。FT-IR的结果显示,这种新型介孔分子筛TiO2微球能使染料完全脱色,而且能有效反复利用。表明介孔分子筛TiO2微球是一种很有应用前景的光催化剂。

The mesoporous TiO2 microspheres was prepared by hydrothermal reaction and characterized in this paper. Decoloration and mineralization duri9g photodegradation of Orange II by mesoporous TiO2 at different pH, formation of sulfate, relative Luminosity to luminous bacteria and recycling experiments of catalyst were studied. The FTIR results further suggested that the novel mesoporous TiO2can not only decolour and mineralize dyes completely but also can be effectively reused for several times. On the basis of the research, mesoporous TiO2 would be a promising photocatalyst for practical use.