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序列式H₂O₂ 通过双阴极流通电催化剂的生产和激活,以实现高效和可持续的水处理

Huaijia Xin^1,2, Xiaofeng Zhang², Wenkai An²

¹State Key Laboratory of Environmental Criteria and Risk Assessment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.

Environmental science & technology

|March 9, 2026

概括

这项研究引入了一种新的双阴极电化学系统,用于有效生成基 (·OH) 基. 创新的设计可实现可持续的废水处理,增强污染物去除和长期稳定性.

科学领域:

环境科学与工程环境科学与工程
电化学电化学电化学
水处理技术水处理技术

背景情况:

传统的电化学水处理方法,如阳极氧化和阴极还原,都有其局限性.
阳极-阴极协同效应提供了增强的污染物去除,使低碳和可持续的解决方案.
现有系统通常需要额外的试剂或通风,增加复杂性和成本.

研究的目的:

开发一种无试剂和无气化电化学系统,用于连续生成基 (·OH) 基.
为了研究双阴极堆叠流通反应器对协同阳极-阴极反应的有效性.
评估该系统在去除六价 (Cr(VI),-乙烯基二胺四酸 (Ni-EDTA) 和总有机碳 (TOC) 的性能.

主要方法:

使用石墨 (GF) 和不钢网状 (SSM) 阴极制造双阴极堆叠的通流电化学反应器.
阳极氧 (O2) 演变与阴极过氧化 (H2O2) 生产和激活级联的整合.
选择性促进 O2/H2O2 和 H2O2/·OH 转换,分别通过 GF 和 SSM 阴极.

主要成果:

双阴极系统实现了自给自足的OH生产路径,与单阴极系统相比,提高了污染物去除.
证明了高的Cr(VI) 减少 (>95%),增强了Ni-EDTA解复 (高达41%) 和TOC去除 (高达70%).
在优化的条件下,在50天的连续运行中,获得了100%的Cr(VI) 解毒,99.9%的Ni-EDTA解复和50.8%的TOC矿化.

结论:

开发的双阴极堆叠流通系统为产生基 (·OH) 产生提供了一种节能和可持续的战略.
该系统为处理复杂的工业废水提供了实用且环保的解决方案.
该技术显示出工业可扩展性和在废水处理中长期应用的巨大潜力.

关键词:

阳极 - 阴极合器具有双阴极的电极管.通过电极流动的电极.过氧化是一种过氧化.一个基基的氧基.废水处理是废水处理的方法之一.

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