您好，欢迎访问江苏省农业科学院 机构知识库！
江苏省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Role of quercetin in permanganate oxidation of bisphenol A: Kinetics and mechanism

文献类型： 外文期刊

作者： Li, Jing 1 ; Hu, Xin 3 ; Xue, Lihong 1 ; Li, Shiyin 2 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Key Lab Agroenvironm Downstream Yangtze Plain, Key Lab Combined Farming & Raising,Natl Agr Expt S, Nanjing 210014, Peoples R China

2.Nanjing Normal Univ, Sch Environm, Nanjing 210023, Peoples R China

3.Nanjing Univ Aeronaut & Astronaut, Ctr Microscopy & Anal, Nanjing 210016, Peoples R China

关键词： Mn (III); Manganese dioxide; Permanganate; Kinetics; Bisphenol A

期刊名称：JOURNAL OF WATER PROCESS ENGINEERING （ 影响因子：6.7； 五年影响因子：6.7 ）

ISSN： 2214-7144

年卷期： 2024 年 67 卷

页码：

收录情况： SCI

摘要： Potassium permanganate (Mn (VII)) oxidation, a green advanced oxidation technology, is widely used as an insitu remediation method for groundwater contamination. Based on the complexity of organic substances in aquatic environments, many novel organic components, whose processes and mechanisms affecting the oxidative efficacy of Mn (VII), remain unknown and need to be studied systematically. Therefore, using the reducing macromolecular quercetin as the organic matter, the efficiency and mechanism of quercetin-bound, low-valent Mn enhanced Mn (VII) oxidation of bisphenol A (BPA) were studied. The pH and concentration of quercetin strongly influenced its performance. Under pH 4.0-6.0, quercetin evidently promoted the BPA degradation rate in the Mn (VII)/quercetin (Mn (VII)/Q) system. However, the presence of quercetin had little effect on the degradation efficiency of Mn (VII) at pH >= 7.0. This study found that at pH 4.0-5.0, quercetin could act as both a reductant and complexing ligand in the process of BPA oxidation. As a complexing ligand, quercetin stabilized the intermediate states of Mn (III) to form complexes. These stable complexes could efficiently oxidize BPA. While low concentrations of quercetin were insufficient to complex and stabilize Mn (III), Mn (III) was reduced to Mn (II). Mn (II) then reacted with Mn (VII) to form MnO2, enhancing the degradation efficiency of the Mn (VII)/ Q system for BPA through its catalytic and oxidative properties. This study provides a better understanding of the degradation of organic pollutants by KMnO4 in groundwater treatment.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：江苏省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台