Article(id=1314922093100232740, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314922077824578469, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1752508800000, receivedDateStr=2025-07-15, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791431457065, onlineDateStr=2026-10-08, pubDate=1771516800000, pubDateStr=2026-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791431457065, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791431457065, creator=13701087609, updateTime=1791431457065, updator=13701087609, issue=Issue{id=1314922077824578469, tenantId=1146029695717560320, journalId=1234093305789726721, year='2026', volume='46', issue='2', pageStart='593', pageEnd='1184', issueExtLink='null', onlineDate='null', pubDate='1771516800000', pubDateStr='2026-02-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791431453424, creator='13701087609', updateTime=1791431520751, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314922360277398376, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314922077824578469, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314922360277398377, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314922077824578469, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=776, endPage=784, ext={EN=ArticleExt(id=1314922093297365029, articleId=1314922093100232740, tenantId=1146029695717560320, journalId=1234093305789726721, language=EN, title=In situ H2O2 generation and activation mechanism of MnFe2O4/CNT electrofenton degradation of phenol, columnId=1234106386360103680, journalTitle=China Environmental Science, columnName=Water Pollution Control, runingTitle=null, highlight=null, articleAbstract=

A composite of cubic spinel MnFe2O4 and carbon nanotubes (CNTs) was synthesized, denoted MnFe2O4/CNTs. This study evaluates the efficacy of MnFe2O4/CNT for electrocatalytic degradation of phenol, investigating the mechanism of electrocatalytic oxygen reduction to generate H2O2 and its subsequent activation into ·OH. The aim is to identify a highly efficient and stable cathode material suitable for electrocatalytic degradation of organic pollutants. Results demonstrate that under optimized conditions (MnFe2O4:CNT mass ratio = 19:2, applied voltage = -0.9V, pH = 3, catalyst loading = 0.44mg/cm2, O2 flow rate = 0.5L/min), MnFe2O4/CNTs achieved a remarkable phenol degradation efficiency of 99.9% within 30minutes and a total organic carbon (TOC) removal rate of 72.4% after 90minutes. Notably, the composite maintained 84.5% degradation efficiency of phenol after five consecutive cycles. The incorporation of CNTs not only improve electron transfer efficiency within the system, but leads to electron transfer between MnFe2O4 and CNTs induces an increase in the relative concentration of non-lattice oxygen species within MnFe2O4. Under the above dual effects, MnFe2O4/CNTs boost the capability to electrocatalytically reduce O2 to H2O2 and subsequently activate it in situ to generate ·OH, surpassing the performance of pristine MnFe2O4. The activation of H2O2 is mainly accomplished through a combined process of homogeneous activation involving Mn2+ and Fe2+ and heterogeneous activation excited by active sites such as non-lattice oxygen in MnFe2O4/CNT. The ·OH generated by the activation achieves a relatively thorough oxidation and decomposition of phenol.

, authors=Jia-hao CHEN1, Zheng-hao LU2, Li-ting LING1, Xiao-mei ZHENG1, *, Yong-hao WANG1, *, authorsList=Jia-hao CHEN, Zheng-hao LU, Li-ting LING, Xiao-mei ZHENG, Yong-hao WANG, authorCompany=null, correspAuthors=Xiao-mei ZHENG, Yong-hao WANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314922093582577702, articleId=1314922093100232740, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=MnFe2O4/CNT电芬顿降解苯酚的原位H2O2生成及活化机制, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

制备了立方相MnFe2O4与碳纳米管(CNT)的复合材料MnFe2O4/CNT,评估MnFe2O4/CNT的电催化降解苯酚的效能,探讨其电催化还原氧气生成H2O2并活化为·OH的机理,旨在筛选出一种高效、稳定的可用于电催化降解有机污染物的阴极材料.结果表明,在最佳实验条件为MnFe2O4:CNT=19:2、外加电压为-0.9V、pH=3、催化剂负载量为0.44mg/cm2和氧气通量为0.5L/min时,30min内MnFe2O4/CNT对苯酚的降解率达99.9%,90min内TOC去除率为72.4%,5次循环实验后MnFe2O4/CNT的电催化降解效率仍可达84.5%.CNT的引入不仅提升了MnFe2O4/CNT对电子的传递效率,而且致使MnFe2O4与CNT之间发生了电子转移,从而引起MnFe2O4中非晶格氧的相对含量增加,在上述双重作用下,MnFe2O4/CNT呈现出优于MnFe2O4的电催化还原O2生成H2O2并原位将其活化为·OH的能力;H2O2的活化主要通过Mn2+和Fe2+参与的均相活化和MnFe2O4/CNT的非晶格氧等活性位点激发的非均相活化过程共同完成,活化产生的·OH对苯酚实现了较为彻底的氧化分解.

, authors=陈嘉浩1, 卢铮浩2, 凌丽婷1, 郑小梅1, *, 王永好1, *, authorsList=陈嘉浩, 卢铮浩, 凌丽婷, 郑小梅, 王永好, authorCompany=null, correspAuthors=郑小梅, 王永好, authorNote=

陈嘉浩(2000-),男,福建龙岩人,福州大学硕士研究生,研究方向为污水资源化..

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* 责任作者:郑小梅,副教授,
王永好,教授,
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陈嘉浩(2000-),男,福建龙岩人,福州大学硕士研究生,研究方向为污水资源化..

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陈嘉浩(2000-),男,福建龙岩人,福州大学硕士研究生,研究方向为污水资源化..

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MnFe2O4/CNT电芬顿降解苯酚的原位H2O2生成及活化机制
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陈嘉浩 1 , 卢铮浩 2 , 凌丽婷 1 , 郑小梅 1, * , 王永好 1, *
中国环境科学 | 水污染与控制 2026,46(2): 776-784
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中国环境科学 |水污染与控制 2026 , 46 (2) : 776 -784
MnFe2O4/CNT电芬顿降解苯酚的原位H2O2生成及活化机制
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陈嘉浩1 , 卢铮浩2, 凌丽婷1, 郑小梅1, * , 王永好1, *
作者信息
  • 1.福州大学环境与安全工程学院,福建 福州 350108
  • 2.浙江医药股份有限公司昌海生物分公司,浙江 绍兴 312000
通讯作者:
* 责任作者:郑小梅,副教授,
王永好,教授,
作者简介:

陈嘉浩(2000-),男,福建龙岩人,福州大学硕士研究生,研究方向为污水资源化..

In situ H2O2 generation and activation mechanism of MnFe2O4/CNT electrofenton degradation of phenol
Jia-hao CHEN1 , Zheng-hao LU2, Li-ting LING1, Xiao-mei ZHENG1, * , Yong-hao WANG1, *
Affiliations
  • 1.College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350108, China
  • 2.Zhejiang Pharmaceutical Co., Ltd. Changhai Biological Branch, Shaoxing 312000, China
出版时间: 2026-02-20
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制备了立方相MnFe2O4与碳纳米管(CNT)的复合材料MnFe2O4/CNT,评估MnFe2O4/CNT的电催化降解苯酚的效能,探讨其电催化还原氧气生成H2O2并活化为·OH的机理,旨在筛选出一种高效、稳定的可用于电催化降解有机污染物的阴极材料.结果表明,在最佳实验条件为MnFe2O4:CNT=19:2、外加电压为-0.9V、pH=3、催化剂负载量为0.44mg/cm2和氧气通量为0.5L/min时,30min内MnFe2O4/CNT对苯酚的降解率达99.9%,90min内TOC去除率为72.4%,5次循环实验后MnFe2O4/CNT的电催化降解效率仍可达84.5%.CNT的引入不仅提升了MnFe2O4/CNT对电子的传递效率,而且致使MnFe2O4与CNT之间发生了电子转移,从而引起MnFe2O4中非晶格氧的相对含量增加,在上述双重作用下,MnFe2O4/CNT呈现出优于MnFe2O4的电催化还原O2生成H2O2并原位将其活化为·OH的能力;H2O2的活化主要通过Mn2+和Fe2+参与的均相活化和MnFe2O4/CNT的非晶格氧等活性位点激发的非均相活化过程共同完成,活化产生的·OH对苯酚实现了较为彻底的氧化分解.

尖晶石型化合物  /  电催化氧还原  /  氧空位  /  苯酚降解

A composite of cubic spinel MnFe2O4 and carbon nanotubes (CNTs) was synthesized, denoted MnFe2O4/CNTs. This study evaluates the efficacy of MnFe2O4/CNT for electrocatalytic degradation of phenol, investigating the mechanism of electrocatalytic oxygen reduction to generate H2O2 and its subsequent activation into ·OH. The aim is to identify a highly efficient and stable cathode material suitable for electrocatalytic degradation of organic pollutants. Results demonstrate that under optimized conditions (MnFe2O4:CNT mass ratio = 19:2, applied voltage = -0.9V, pH = 3, catalyst loading = 0.44mg/cm2, O2 flow rate = 0.5L/min), MnFe2O4/CNTs achieved a remarkable phenol degradation efficiency of 99.9% within 30minutes and a total organic carbon (TOC) removal rate of 72.4% after 90minutes. Notably, the composite maintained 84.5% degradation efficiency of phenol after five consecutive cycles. The incorporation of CNTs not only improve electron transfer efficiency within the system, but leads to electron transfer between MnFe2O4 and CNTs induces an increase in the relative concentration of non-lattice oxygen species within MnFe2O4. Under the above dual effects, MnFe2O4/CNTs boost the capability to electrocatalytically reduce O2 to H2O2 and subsequently activate it in situ to generate ·OH, surpassing the performance of pristine MnFe2O4. The activation of H2O2 is mainly accomplished through a combined process of homogeneous activation involving Mn2+ and Fe2+ and heterogeneous activation excited by active sites such as non-lattice oxygen in MnFe2O4/CNT. The ·OH generated by the activation achieves a relatively thorough oxidation and decomposition of phenol.

spinel-type compounds  /  electrocatalytic oxygen reduction  /  oxygen vacancy  /  phenol degradation
陈嘉浩, 卢铮浩, 凌丽婷, 郑小梅, 王永好. MnFe2O4/CNT电芬顿降解苯酚的原位H2O2生成及活化机制. 中国环境科学, 2026 , 46 (2) : 776 -784 .
Jia-hao CHEN, Zheng-hao LU, Li-ting LING, Xiao-mei ZHENG, Yong-hao WANG. In situ H2O2 generation and activation mechanism of MnFe2O4/CNT electrofenton degradation of phenol[J]. China Environmental Science, 2026 , 46 (2) : 776 -784 .
  • 福建省自然科学基金项目(2022J01107; 2023J01420)
  • 福州大学引进人才科研启动项目(511489)
  • 福州大学贵重仪器设备开放测试基金资助项目(2025T025)
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  • 接收时间:2025-07-15
  • 首发时间:2026-10-08
  • 出版时间:2026-02-20
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  • 收稿日期:2025-07-15
基金
福建省自然科学基金项目(2022J01107; 2023J01420)
福州大学引进人才科研启动项目(511489)
福州大学贵重仪器设备开放测试基金资助项目(2025T025)
作者信息
    1.福州大学环境与安全工程学院,福建 福州 350108
    2.浙江医药股份有限公司昌海生物分公司,浙江 绍兴 312000

通讯作者:

* 责任作者:郑小梅,副教授,
王永好,教授,
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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