【摘要】 制作了一种聚集太阳光光催化反应装置,在纳米半导体TiO2存在下可用于净化染料和表面活性剂污染物,并可使其快速降解并矿化.含有N—甲基助色基团染料的降解伴随脱甲基过程,混合物最大吸收峰发生蓝移.总有机碳(TOC)值降低与污染物有关,当降解生成中间体与污染物有较强的竞争吸附时,TOC值有升高现象.对不同的污染物降解,有不同的较适宜的TiO2用量.更多还原

【Abstract】 A solar light concentrator for photocatalytic reaction was prepared, with which dyes and surfactant pollutants could be efficiently degraded and mineralized.Accompanied with mineralization, N-demethylation of dyes containing N-methyl groups occurred, and made the maximal absorption band of degraded mixtures hypsochromic effects. Elimination of total organic carbon (TOC) is related to the properties of pollutants degraded. The strong competitive adsorption between the pollutants and the formed intermediates lead to the temporal TOC increase. Various optimal TiO 2 loadings is corresponded to the different substrates decomposed.更多还原