摘要
采用水热合成法合成了纳米材料钨酸钴(CoWO_4),研究了其催化超声降解水中日落黄(SY)的性能及实验工艺。结果表明,CoWO_4具有良好的声催化活性及良好的可重复使用性能。当CoWO_4加入量为2.0g/L、SY初始质量浓度为30mg/L、pH=3、超声功率为200W、超声时间为120min、温度为25℃左右时,SY降解率可达到85.84%。CoWO_4催化超声降解SY的主要原因是活性氧的产生,其中主要是·OH起作用。此外,该降解反应符合拟一级反应动力学。
The nanomaterials CoWO4 catalyst was prepared by the hydrothermal synthesis.And the performance and experimental process in the sonocatalytic degradation of SY were investigated.The results showed that CoWO4 had good catalytic activity and good reusability.The degradation ratio of SY was up to 85.84% when the addition amount of catalyst was 2.0 g/L,the initial concentration was 30 mg/L,the initial pH was 3,the ultrasonic power was 200 W,the ultrasonic time was 120 min and temperature was about 25 ℃.The main reason of sonocatalytic degradation of SY by CoWO4 was the production of ROS,which was mainly ·OH.In addition,the degradation reaction was conformed to the first order reaction kinetics.
作者
何玲玲
高峰伟
李昱
王志新
王新
HE LingLing;GAO Fengwei;LI Yu;WANG Zhixin;WANG Xin(College of Applied Chemistry,Shenyang University of Chemical Technology,Shenyang Liaoning 110142;School of Pharmaceutical Sciences,Liaoning University,Shenyang Liaoning 110036)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2018年第11期1285-1288,共4页
Environmental Pollution & Control
关键词
钨酸钴
催化超声
降解
日落黄
cobaltous tungstate
sonocatalytic
degradation
sunset yellow
