Deqiang Chen, Dai-Ming Zhang, Wei Zhaoping
Abstract
[目的]为饮用水中腐植酸的去除提供新思路.[方法]采用光还原法对纳米TiO2进行Ag沉积,研究改性TiO2/UV体系对腐殖酸的光降解效率,并探讨TiO2用量及腐植酸初始浓度对光降解效率的影响.[结果]适量Ag沉积可提高TiO2的光催化活性,Ag沉积量为0.8wt%时TiO2的光催化活性最大;焙烧温度为400 ℃时TiO2的光催化活性最强;增加TiO2用量可提高腐植酸的光降解反应速率;在试验浓度范围...
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[目的]为饮用水中腐植酸的去除提供新思路.[方法]采用光还原法对纳米TiO2进行Ag沉积,研究改性TiO2/UV体系对腐殖酸的光降解效率,并探讨TiO2用量及腐植酸初始浓度对光降解效率的影响.[结果]适量Ag沉积可提高TiO2的光催化活性,Ag沉积量为0.8wt%时TiO2的光催化活性最大;焙烧温度为400 ℃时TiO2的光催化活性最强;增加TiO2用量可提高腐植酸的光降解反应速率;在试验浓度范围...
Key concepts: Degradation (telecommunications), Humic acid, Photocatalysis, Environmental chemistry, Chemistry, Chemical engineering, Environmental science, Catalysis