【摘要】 采用溶胶-凝胶法制备P25/SnO2复合催化剂,以活性艳红X-3B溶液光催化降解反应为模型,研究各种因素对活性艳红X-3B光催化降解的影响.实验结果表明:P25/SnO2复合催化剂适宜用量为4g/L,溶液pH为6左右,活性艳红X-3B溶液初始浓度40 mg/L,加入H2O2 2 mL/L,60 min左右活性艳红X-3B降解率可达到95.8%,降解反应动力学符合一级反应.更多还原

【Abstract】 Adopts sol-gel method to prepare the P25/SnO2 compound catalyst,taking the photo-catalytic degradation of reactive brilliant red X-3B as a model,to research several factors which in-fluence the reaction.The results indicated that the degradation ratio of reactive brilliant red X-3B re-ach 95.8% within 60 minutes under the conditions that the amount of catalyst was 4 g/L,pH = 6,initial reactive brilliant red X-3B concentration was 40 mg/L and added 2 mL/L H2O2.The degrad-ation kinetic of reactive brilliant red X-3B in the P25/SnO2 compound catalyst meet the first-order re-action.更多还原