摘要
采用水热法制备了Ag_(2)O/Ag_(2)MoO_(4)复合催化剂,并对其进行表征。成功构建了Ag2O/Ag2MoO4-H2O2催化体系降解有机染料孔雀石绿(MG)。实验结果表明,在催化剂投加量为0.5 g/L,H2O2浓度为50 mmol/L,溶液初始pH为4.5,反应温度为25℃,MG质量浓度为30 mg/L的最佳反应条件下,催化体系对MG的催化降解率高达99.8%。所制备的Ag_(2)O/Ag_(2)MoO_(4)催化剂能在较宽的pH范围内(2.5~6.5)保持很好的催化活性,且催化剂具有优异的稳定性,经过5次重复使用后,MG的降解率仍可达到93%以上。
A composite catalyst Ag_(2)O/Ag_(2)MoO_(4) was prepared by hydrothermal synthesis method and characterized.A catalyst system of Ag_(2)O/Ag_(2)MoO_(4)-H_(2)O_(2) for degradation malachite green(MG)was constructed successfully.The experimental results showed that degradation ratio of MG reached 99.8% with Ag_(2)O/Ag_(2)MoO_(4)-H_(2)O_(2) system under optimal experimental conditions(catalyst dosage 0.5 g/L,H_(2)O_(2) concentration 50 mmol/L,pH 4.5 and 250℃).Moreover,the catalytic activity of catalyst could still be excellent over a wide pH range from 2.5 to 6.5 in Ag_(2)O/Ag_(2)MoO_(4)-H_(2)O_(2) system.In addition,the catalysts maintained excellent stable catalytic performance after five cycling runs,and the degradation ratio of MG was still above 93%.
作者
肖纯
董奕德
刘玲
黎素
韦寿莲
Xiao Chun;Dong Yide;Liu Ling;Li Su;Wei Shoulian(College of Environmental and Chemical Engineering,Zhaoqing University,Zhaoqing 526061,China;Guangdong Provincial Key Laboratory of Environmental Health and Land Resource,Zhaoqing 526061,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2021年第5期62-67,共6页
Industrial Water Treatment
基金
肇庆学院大学生创新创业训练计划项目(S201910580075)
肇庆学院校级科研基金项目(202012,202021)
肇庆市科技创新指导类项目(202004030204,201904030201)。
