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作 者:杨昊明 何诗雅 程燊昱 游志敏 YANG Hao-ming;HE Shi-ya;CHENG Shen-yu;YOU Zhi-min(College of Environment and Resourses,Xiangtan University,Xiangtan 411105,China)
机构地区:[1]湘潭大学环境与资源学院,湖南湘潭411105
出 处:《湘潭大学学报(自然科学版)》2021年第5期89-99,112,共12页Journal of Xiangtan University(Natural Science Edition)
摘 要:以水热法制备微波催化剂NiFe_(2)O_(4)/SiC,以双酚A废水为目标污染物,考察催化剂负载量、pH、催化剂投加量、双氧水浓度以及微波功率对微波辅助Fenton催化氧化降解双酚A的影响.通过自由基抑制实验初步探讨了微波辅助Fenton催化氧化降解双酚A的反应机理.结果表明:在初始pH=3,催化剂投加量为4 g/L,H_(2)O_(2)浓度为3 mL/L,微波功率为400 W的条件下.反应8 min,20 mg/L的双酚A废水的降解率为100%,矿化率为64%.催化剂稳定性好,5次循环实验后,对双酚A的降解率仍为100%.The microwave catalyst NiFe_(2)O_(4)/SiC was prepared by water heat method,and the bisphenol A wastewater was the target pollutant,and the influence of the catalyst load,pH,catalyst dosage,hydrogen peroxide concentration and microwave power on the microwave-assisted Fenton catalytic oxidation and degradation of bisphenol A were investigated.The reaction mechanism of microwave assisted Fenton catalytic oxidation degradation of bisphenol A was discussed by radical suppression.The results showed that at the initial pH=3,the catalyst dosage of 4 g/L and H_(2)O_(2) concentration of 3 mL/L,microwave power of 400 W.The degradation rate of bisphenol A wastewater at reaction 8 min,20 mg/L was 100,and the mineralization rate was 64%.The catalyst was well stable,and the degradation rate of bisphenol A remained 100%after five cycle experiments.
关 键 词:微波 NiFe_(2)O_(4)/SiC 双酚A
分 类 号:X52[环境科学与工程—环境工程]
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