碱性介质中的电化学高级氧化技术及其催化氧化性能研究
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- 英文论文题名：Enhanced Electrocatalytic Oxidation Behavior by Novel Electrochemical Advanced Oxidation Processes in Alkaline Media
- 论文作者：薛玉冬 ; 金伟 ; 杜浩 ; 郑诗礼 ; 张懿
- 英文论文作者：Yudong Xue ; Wei Jin ; Hao Du ; Shili Zheng ; Yi Zhang ; National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology ; Key Laboratory of Green Process and Engineering ; Institute of Process Engineering ; Chinese Academy of Sciences ; University of Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院过程工程研究所湿法冶金清洁生产技术国家工程实验室绿色过程与工程重点实验室;中国科学院大学;
- 论文关键词：高级氧化技术 ; 碱性介质 ; 催化氧化 ; 活性氧 ; 电化学
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十六分会：环境化学
- 语种：中文
- 分类号：X505;O643.3
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十六分会 ; 环境化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：140k
- 原文格式：D
- 会议级别：全国
摘要
作为一种新兴技术,电化学高级氧化技术具有处理效率高、极少产生二次污染、对绝大多数难降解有机物分解彻底、可实现清洁工艺等优点。基于电化学氧还原二电子反应途径,氧气在碳材料表面原位生成过氧氢根离子等具有强氧化性的活性氧物种,避免了过氧化氢储存、运输等潜在的危险。本研究将此电化学催化氧化过程应用于碱性介质中矿物分解领域,利用原位生成的活性氧物种,选择性催化氧化碱性环境下的矿物离子,克服矿物离子聚合、团聚等壁垒,提升矿物离子转化率(120min可达95.1%),揭示了碱性介质电化学高级氧化技术的共性规律,拓宽了电化学高级氧化技术的应用范围。
Among the most potent methods to remove organic pollutants,the electrochemical advanced oxidation processes(EAOPs) have attracted recently great attention owning to their high energy efficiency,environmental compatibility,versatility and safety operating at mild conditions.The strong oxidant HO2-is in-situ supplied by the two-electron oxygen reduction reaction pathway on a carbonaceous cathode in alkaline media.This system avoids the addition of hydrogen peroxide as well as the related risks associated with its storage and transport.Herein,this novel electro-catalytic system was introduced into the mineral decomposition field in alkaline media.A significantly enhanced oxidative conversion of 95.8% was obtained and a possible solution to overcome the mineral polymerization bottleneck was proposed,which may further the practical application of electrochemical advanced oxidation processes.
Among the most potent methods to remove organic pollutants,the electrochemical advanced oxidation processes(EAOPs) have attracted recently great attention owning to their high energy efficiency,environmental compatibility,versatility and safety operating at mild conditions.The strong oxidant HO2-is in-situ supplied by the two-electron oxygen reduction reaction pathway on a carbonaceous cathode in alkaline media.This system avoids the addition of hydrogen peroxide as well as the related risks associated with its storage and transport.Herein,this novel electro-catalytic system was introduced into the mineral decomposition field in alkaline media.A significantly enhanced oxidative conversion of 95.8% was obtained and a possible solution to overcome the mineral polymerization bottleneck was proposed,which may further the practical application of electrochemical advanced oxidation processes.
引文