广东石油化工学院学报2026，Vol.36Issue(3)：19-25,7.DOI:10.26962/j.cnki.1991.2026.0045
超声/Cu2+/H2O2降解废水中亚甲基蓝的效能及机理
Efficiency and Mechanism of Ultrasound/Cu2+/H2O2 Degradation of Methylene Blue in Wastewater
陈炳坚 1谢文玉 1王怡怡 1殷旭东1
作者信息
- 1. 广东石油化工学院 环境科学与工程学院,广东 茂名 525000
- 折叠
摘要
Abstract
The degradation of methylene blue(MB)in wastewater was investigated using an ultrasound(US)/Cu2+/H2O2 oxidation system.The effects of the oxidation system,pH,Cu2+concentration,H2O2 concentration,and US time on MB removal were systematically examined,and the reaction mechanism of this system was explored.The experimental results indicate that the optimal conditions for treatment under single-factor conditions are pH=5.5;Cu2+concentration of 0.20 mmol/L;H2O2 concentration of 0.020 mol/L;and US time of 90 min.Orthogonal experiments revealed that H2O2 concentration is the primary factor influencing treatment efficacy,followed by US duration and Cu2+concentration.Based on the experiments of free radical capture and spectral analysis,the reaction mechanism of MB degradation in US/Cu2+/H2O2 system was deduced.The synergistic effect of US cavitation and Cu2+catalysis on H2O2 decomposition produces hydroxyl radicals(·OH)and superoxide radicals(·O2-)that attack MB molecules,disrupt their chromophores and aromatic ring structures,and achieve efficient degradation of MB.关键词
超声/Cu2+/H2O2氧化体系/亚甲基蓝/降解机理Key words
ultrasound/Cu2+/H2O2 oxidation system/methylene blue/degradation mechanism分类
资源环境引用本文复制引用
陈炳坚,谢文玉,王怡怡,殷旭东..超声/Cu2+/H2O2降解废水中亚甲基蓝的效能及机理[J].广东石油化工学院学报,2026,36(3):19-25,7.
