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Updated: May 13, 2025

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易斯酸位调节的微观接口在石墨面上用于增强的异质电-芬顿工艺:封闭效应的形成和单片氧的产生

Yihao Liu¹, Haiqiang Qi¹, Jian Zhang¹

¹School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China.

Journal of colloid and interface science

|April 30, 2025

概括

这项研究引入了一种新的多孔封闭石墨阴极,用于增强的异质电-芬顿 (Hetero-EF) 系统. 新材料促进单点氧 (1O2) 的产生,显著改善了废水中的抗生素污染物降解.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
电化学电化学电化学

背景情况:

异质电芬顿 (Hetero-EF) 中的基基 (•OH) 在寿命和扩散方面具有限制.
单一氧气 (1O2) 在先进的氧化过程中比OH具有优势.
开发1O2主导的Hetero-EF的高效催化剂对于废水处理至关重要.

研究的目的:

通过in-situ蚀刻NiOx.制备一个多孔封闭石墨 (PCGF) 阴极.
建立一个以1O2为主导的Hetero-EF系统,以加强抗生素污染物的降解.
研究"封闭效应"对污染物吸附和活性氧物种利用的作用.

主要方法:

在石墨上进行NiOx的现场蚀刻,以创建PCGF.
在Hetero-EF中使用PCGF作为阴极,用于氧基环素降解.
进行激光火实验和密度函数理论 (DFT) 计算.
评估各种pH值和抗干扰能力的电极性能.

主要成果:

在没有外部电源的情况下,PCGF电极在30分钟内实现了50.23%的氧化四环素吸附性去除.
"封闭效应"增强了污染物缩,反应性氧物种的利用和1O2的选择性.
通过涉及H2O2,OH和超氧化离子的多个途径确认了1O2生成.
PCGF电极显示出优异的降解性能和抗干扰能力.

结论:

开发的PCGF阴极有效地促进了1O2主导的异质EF系统.
这种方法显著提高了废水中抗生素污染物的降解.
该研究提出了一种用于推进基于1O2的Hetero-EF技术的新策略.

关键词:

封闭效应的封闭效应不同类型的电动芬顿.易斯酸的部位是路易斯酸的部位机制分析机制分析单一氧气的氧气是单一的

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