Kinetics research on bimetallic CoMnOx/UV catalyzed persulfate for the degradation of AO7

doi:10.11894/1005-829x.2018.38(5).042

INDUSTRIAL WATER TREATMENT ›› 2018, Vol. 38 ›› Issue (5): 42-45. doi: 10.11894/1005-829x.2018.38(5).042

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Kinetics research on bimetallic CoMnO_x/UV catalyzed persulfate for the degradation of AO7

Xu Hao, Zhang Jing, Zhang Gucheng, Ye Qian, Zhou Guanyu, Yang Fuhua

College of Architecture and Environment, Sichuan University, Chengdu 610065, China

Received:2018-02-09 Online:2018-05-20 Published:2018-05-29

紫外耦合钴锰双金属催化过硫酸盐降解AO7动力学

徐浩, 张静, 张古承, 叶倩, 周冠宇, 杨富花

四川大学建筑与环境学院, 四川成都 610065

通讯作者: 张静,博士,副教授。E-mail:zjing428@163.com。 E-mail:zjing428@163.com
作者简介:徐浩(1997-),本科。E-mail:soda52657@163.com。
基金资助:
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）

Abstract

Abstract: The bimetallic Co-Mn oxide CoMnO_x catalyst has been prepared by sol-gel method,the degradation effect of CoMnO_x/UV/PS,CoMnO_x/PS,UV/PS,and single PS oxidation systems have been compared,and the influences of PS dosage,CoMnO_x dosage,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 CoMnO_x/UV/PS system. AO7 removing effect is found to be enhanced through increasing the PS concentration and CoMnO_x dosage. 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.

Key words: cobalt-manganese bimetallic catalyst, persulphate, UV coupling, kinetics

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pH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。

关键词: 钴锰双金属催化剂, 过硫酸盐, 紫外耦合, 动力学

CLC Number:

X703.1

Xu Hao, Zhang Jing, Zhang Gucheng, Ye Qian, Zhou Guanyu, Yang Fuhua. Kinetics research on bimetallic CoMnO_x/UV catalyzed persulfate for the degradation of AO7[J]. INDUSTRIAL WATER TREATMENT, 2018, 38(5): 42-45.

徐浩, 张静, 张古承, 叶倩, 周冠宇, 杨富花. 紫外耦合钴锰双金属催化过硫酸盐降解AO7动力学[J]. 工业水处理, 2018, 38(5): 42-45.

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Kinetics research on bimetallic CoMnO_x/UV catalyzed persulfate for the degradation of AO7

紫外耦合钴锰双金属催化过硫酸盐降解AO7动力学

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Kinetics research on bimetallic CoMnOx/UV catalyzed persulfate for the degradation of AO7

紫外耦合钴锰双金属催化过硫酸盐降解AO7动力学

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Kinetics research on bimetallic CoMnO_x/UV catalyzed persulfate for the degradation of AO7