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Permanganate activation by glucose-derived carbonaceous materials for highly efficient degradation of phenol and p-nitrophenol: Formation of hydroxyl radicals and multiple roles of carbonaceous materials

发布时间：2024-09-28点击次数：

  • DOI码：10.1016/j.chemosphere.2023.138859
  • 发表刊物：Chemosphere
  • 关键字：Degradation; Glucose-derived carbonaceous materials; p-Nitrophenol; Permanganate; Phenol
  • 摘要：Owing to its inertness toward refractory organic pollutants and the release of Mn2+, the use of permanganate was limited in soil and groundwater remediation. The present study proposed an improvement strategy based on glucose-derived carbonaceous materials, which enhanced the potential of permanganate degrading organic pollutants. The glucose-derived carbonaceous material with 1000 °C charring temperature was named C1000, which was exploited in activating KMnO4 for the elimination of refractory organic contaminants. The addition of C1000 in the KMnO4 system triggered the degradation of refractory p-nitrophenol and quicken phenol degradation. Unlike the detection of Mn(III) species in a solo KMnO4 system, the presence of C1000 facilitated the formation of •OH in the KMnO4 system, which was confirmed by the use of quenchers such as methanol, benzoic acid, tertiary butanol, and carbonate. Additionally, the glucose-derived carbonaceous material played multiple roles in improving the performance of permanganate, including the enrichment of organic pollutants, donation of electrons to permanganate, and acting as an electron shuttle to facilitate the oxidation of organic pollutants by permanganate. The study's novel findings have the potential to expand the use of permanganate in the remediation of organic pollutants.
  • 论文类型：期刊论文
  • 论文编号：138859
  • 学科门类：工学
  • 一级学科：环境科学与工程
  • 文献类型：J
  • 卷号：334
  • ISSN号：0045-6535
  • 是否译文：否
  • 发表时间：2023-09-04
  • 收录刊物：SCI
  • 发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0045653523011268?pes=vor

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张凯凯

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  • 教师英文名称：Kaikai Zhang
  • 教师拼音名称：zhangkaikai
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  • 所在单位：环境与测绘学院
  • 性别：男
  • 学位：工学博士学位

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  • 2021-09-272020 年度华中科技大学环境学院国祯环卫一等奖学金
  • 2023-05-15第八届地学青年地学论坛优秀学生报告奖

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