摘要
利用溶胶-凝胶法制备钴锰双金属催化剂,对比了CoMnO_x/UV/过硫酸钠(PS)、CoMnO_x/PS、UV/PS和单独PS体系的降解效果,运用动力学分析了PS浓度、CoMnO_x投加量、初始p H以及阴离子对AO7降解的影响,结果显示,CoMnO_x/UV/PS体系可以明显提高AO7的去除效果。提升PS浓度和CoMnO_x投加量有利于AO7的降解;弱酸性条件下AO7去除速率达到最大值;溶液中的HCO3-和Cl-低浓度下可促进AO7降解,高浓度下则会抑制。
The bimetallic Co-Mn oxide CoMnOxcatalyst has been prepared by sol-gel method,the degradation effect of CoMnOx/UV/PS,CoMnOx/PS,UV/PS,and single PS oxidation systems have been compared,and the influences of PS dosage,CoMnOxdosage,initial pH and anions on AO7 degradation analyzed by making use of reaction kinetics.The results show that AO7 removing effect can be significantly improved by the CoMnOx/UV/PS system. AO7 removing effect is found to be enhanced through increasing the PS concentration and CoMnOxdosage. In addition,the removing rate of AO7 reaches the maximum value under weak acid conditions. HCO3-and Cl-in solution with low concentration can facilitate AO7 degradation,while they are with high concentration can inhibit AO7 degradation.
作者
徐浩
张静
张古承
叶倩
周冠宇
杨富花
Xu Hao;Zhang Jing;Zhang Gucheng;Ye Qian;Zhou Guanyu;Yang Fuhua(College of Architecture and Environment, Sichuan University, Chengdu 610065, China)
出处
《工业水处理》
CAS
CSCD
北大核心
2018年第5期42-45,共4页
Industrial Water Treatment
基金
国家自然科学基金项目(51508353)
成都市科技惠民项目(2015-HM01-00279-SF)
大学生创新创业训练计划(201610611024)
关键词
钴锰双金属催化剂
过硫酸盐
紫外耦合
动力学
cobalt-manganese bimetallic catalyst
persulphate
UV coupling
kinetics
