平板式电化学过滤器构建及对甲基橙去除机制研究
Construction of Plate-type Electrochemical Filter and Study on Methyl Orange Removal Mechanism
初永宝 1李迎新 1马青峰1
作者信息
- 1. 青岛科技大学 环境与安全工程学院,山东 青岛 266042
- 折叠
摘要
构建了一种"一锅式"平板式电化学过滤器.同时,从电压、流速、电解质、pH多角度优化其甲基橙降解效率,并对其降解机制、稳定性和普适性进行探究.实验结果表明,在电压3 V,电解质浓度10 mmol·L-1,流速1.5 mL·min-1,pH(4～10)的条件下,甲基橙去除率达95%.淬灭实验表明,体系降解机制为直接氧化.同时,在长时间稳定性实验中,甲基橙去除率仍处于较高水平.在最佳实验条件下,除甲基橙外,罗丹明B以及两者混合后的污染物降解率均在94%以上.
Abstract
In this paper,a"one-pot"plate-type electrochemical filter was constructed.Mean-while,the methyl orange degradation efficiency was optimized from multiple perspectives of voltage,flow rate,electrolyte and pH,and the degradation mechanism,stability and uni-versality were explored.The experimental results showed that under the conditions of 3 V voltage,10 mmol·L-1 electrolyte concentration,1.5 mL·min-1 flow rate and pH(4-10),the removal rate of methyl orange reached 95%.Quenching experiments showed that the degradation mechanism of the system was direct oxidation.At the same time,the removal rate of methyl orange was still at a high level in the long-term stability experiment.Under the optimum experimental conditions,besides methyl orange,the degradation rate of Rhodamine B and the mixture of them were above 94%.
关键词
平板式过滤器/碳纳米管膜/电化学降解Key words
plate-type filter/carbon nanotube membrane/electrochemical degradation引用本文复制引用
基金项目
山东省自然科学基金(ZR2019MEM023)
出版年
2024
NETL
NSTL
万方数据