喷射环流三相光催化反应器可见光下降解酸性湖兰A的研究  

Photocatalytic degradation of acid blue A with a jet loop three-phase photoreactor under visible light

作　　者：陈小滔[1] 张鹏[1] 徐瑞芬[1] 胡伟康[1] 

机构地区：[1]北京化工大学化学工程学院,北京100029

出　　处：《环境污染与防治》2005年第5期346-349,i0003,共5页Environmental Pollution & Control

摘　　要：设计了一种喷射环流三相光催化反应器。用该反应器在可见光下,对染料酸性湖兰A在不同初始浓度、催化剂浓度、pH、光照时间下光催化降解脱色率的影响进行了研究。实验结果表明,反应最佳pH为6,反应最佳时间为20min,催化剂最佳投加量为8g/L。在最优条件下,染料脱色率达90%以上。A jet loop three-phase photoreactor was designed. The reaction rate of degradation and decoloration of acid blue A were studied at different initial concentration, catalyst concentration, pH value and reaction time under visible light illumination. The results showed that optimal pH value and optimal reaction time for degradation of the dye were pH 6 and 20 min, respectively, and the mass concentration of catalyst had an optimal value （8 g/L）. Under the optimal condition, the degradation rate of the dye could be up to 90%.

关 键 词：光催化反应器 可见光酸性湖兰A 降解 光催化降解 喷射环流 可见光 酸性 三相 催化剂浓度 最佳pH 

分 类 号：X788[环境科学与工程—环境工程]