Article(id=1314923040320877096, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314922986466009203, 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=1755273600000, receivedDateStr=2025-08-16, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791431682901, onlineDateStr=2026-10-08, pubDate=1773936000000, pubDateStr=2026-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791431682901, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791431682901, creator=13701087609, updateTime=1791431682901, updator=13701087609, issue=Issue{id=1314922986466009203, tenantId=1146029695717560320, journalId=1234093305789726721, year='2026', volume='46', issue='3', pageStart='1185', pageEnd='1776', issueExtLink='null', onlineDate='null', pubDate='1773936000000', pubDateStr='2026-03-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1791431670061, creator='13701087609', updateTime=1791431955369, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314924183251935526, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314922986466009203, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314924183251935527, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314922986466009203, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1398, endPage=1406, ext={EN=ArticleExt(id=1314923040526397993, articleId=1314923040320877096, tenantId=1146029695717560320, journalId=1234093305789726721, language=EN, title=Effect of ultraviolet aging on the adsorption of diclofenac by microplastics, columnId=1234106386360103680, journalTitle=China Environmental Science, columnName=Water Pollution Control, runingTitle=null, highlight=null, articleAbstract=

Taking three types of the most frequently detected microplastics (MPs) in the environment, i.e., polyethylene (PE), polyvinyl chloride (PVC), and polystyrene (PS), as the research objects, their ultraviolet (UV) aging and the environmental behavior of aged MPs to diclofenac (DCF) were explored in this study. The results indicate that after UV aging, the surface roughness, specific surface area and average pore size of the three MPs increased, while their contact angle and point of zero charge decreased. Moreover, UV aging caused an increase in the oxygen content of MPs, with a significant increase in the content of oxygen-containing functional groups such as carbonyl and hydroxyl. Adsorption experimental results show that different MPs had slightly different adsorption capacities for DCF, and PS exhibited stronger DCF adsorption ability with the adsorption capacity of 0.5626mg/g. The adsorption capacities of UV-aged PE, PVC and PS for DCF were 0.4884, 0.6077and 0.6382mg/g, respectively, which were stronger than that of the original MPs. The adsorption amount of DCF by MPs before and after aging both decreased with increasing pH or the increase in salinity and humic acid concentration. The adsorption process for DCF by MPs was divided into three stages, i.e., liquid film diffusion, particle internal diffusion, and adsorption equilibrium, and the adsorption mechanism mainly involved physical adsorption dominated by hydrophobic interactions, van der Waals forces, hydrogen bonding and electrostatic interactions.

, authors=Yi-qing LIU*, Qing-hua ZOU, You-zhong ZHANG, Hong HU, Chuan-zeng CHEN, authorsList=Yi-qing LIU, Qing-hua ZOU, You-zhong ZHANG, Hong HU, Chuan-zeng CHEN, authorCompany=null, correspAuthors=Yi-qing LIU, 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=1314923040778056234, articleId=1314923040320877096, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=紫外老化对微塑料吸附双氯芬酸的影响, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

以在环境中被检出最多的聚乙烯(PE)、聚氯乙烯(PVC)和聚苯乙烯(PS)3种微塑料(MPs)为研究对象,探究3种MPs的紫外老化以及老化MPs与双氯芬酸(DCF)的环境行为.结果表明,经紫外老化后3种MPs表面粗糙度增大,比表面积和平均孔径增大,接触角和零点电荷均减小.此外,紫外老化将使MPs的O元素含量上升,含氧官能团羰基、羟基含量显著增加.吸附实验结果表明,不同MPs对DCF的吸附能力略微不同,PS表现出更强的吸附能力,吸附容量为0.5626mg/g;紫外老化后的PE、PVC和PS对DCF的吸附容量分别为0.4884,0.6077,0.6382mg/g,其吸附能力均比原始MPs更强.老化前后MPs对DCF的吸附量均随着pH值的升高和盐度、腐殖酸浓度的增大而减小.MPs对DCF的吸附过程均分为液膜扩散、颗粒内扩散、吸附平衡3个阶段,吸附机理主要是疏水作用、范德华力、氢键、静电作用为主的物理吸附.

, authors=刘义青*, 邹清华, 张又中, 胡虹, 陈传曾, authorsList=刘义青, 邹清华, 张又中, 胡虹, 陈传曾, authorCompany=null, correspAuthors=刘义青, authorNote=

刘义青(1989-),男,江苏盐城人,副教授,博士,主要从事水污染防治研究.发表论文90余篇..

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刘义青(1989-),男,江苏盐城人,副教授,博士,主要从事水污染防治研究.发表论文90余篇..

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刘义青(1989-),男,江苏盐城人,副教授,博士,主要从事水污染防治研究.发表论文90余篇..

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紫外老化对微塑料吸附双氯芬酸的影响
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刘义青 * , 邹清华 , 张又中 , 胡虹 , 陈传曾
中国环境科学 | 水污染与控制 2026,46(3): 1398-1406
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中国环境科学 |水污染与控制 2026 , 46 (3) : 1398 -1406
紫外老化对微塑料吸附双氯芬酸的影响
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刘义青(1989-),男,江苏盐城人,副教授,博士,主要从事水污染防治研究.发表论文90余篇..

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刘义青(1989-),男,江苏盐城人,副教授,博士,主要从事水污染防治研究.发表论文90余篇..

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刘义青* , 邹清华, 张又中, 胡虹, 陈传曾
作者信息
  • 西南交通大学环境科学与工程学院,四川 成都 611756
通讯作者:
* 责任作者,副教授,
作者简介:

刘义青(1989-),男,江苏盐城人,副教授,博士,主要从事水污染防治研究.发表论文90余篇..

Effect of ultraviolet aging on the adsorption of diclofenac by microplastics
Yi-qing LIU* , Qing-hua ZOU, You-zhong ZHANG, Hong HU, Chuan-zeng CHEN
Affiliations
  • School of Environmental Science and Engineering, Southwest Jiaotong University, Chengdu 611756, China
出版时间: 2026-03-20
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以在环境中被检出最多的聚乙烯(PE)、聚氯乙烯(PVC)和聚苯乙烯(PS)3种微塑料(MPs)为研究对象,探究3种MPs的紫外老化以及老化MPs与双氯芬酸(DCF)的环境行为.结果表明,经紫外老化后3种MPs表面粗糙度增大,比表面积和平均孔径增大,接触角和零点电荷均减小.此外,紫外老化将使MPs的O元素含量上升,含氧官能团羰基、羟基含量显著增加.吸附实验结果表明,不同MPs对DCF的吸附能力略微不同,PS表现出更强的吸附能力,吸附容量为0.5626mg/g;紫外老化后的PE、PVC和PS对DCF的吸附容量分别为0.4884,0.6077,0.6382mg/g,其吸附能力均比原始MPs更强.老化前后MPs对DCF的吸附量均随着pH值的升高和盐度、腐殖酸浓度的增大而减小.MPs对DCF的吸附过程均分为液膜扩散、颗粒内扩散、吸附平衡3个阶段,吸附机理主要是疏水作用、范德华力、氢键、静电作用为主的物理吸附.

微塑料  /  双氯芬酸  /  紫外老化  /  吸附行为

Taking three types of the most frequently detected microplastics (MPs) in the environment, i.e., polyethylene (PE), polyvinyl chloride (PVC), and polystyrene (PS), as the research objects, their ultraviolet (UV) aging and the environmental behavior of aged MPs to diclofenac (DCF) were explored in this study. The results indicate that after UV aging, the surface roughness, specific surface area and average pore size of the three MPs increased, while their contact angle and point of zero charge decreased. Moreover, UV aging caused an increase in the oxygen content of MPs, with a significant increase in the content of oxygen-containing functional groups such as carbonyl and hydroxyl. Adsorption experimental results show that different MPs had slightly different adsorption capacities for DCF, and PS exhibited stronger DCF adsorption ability with the adsorption capacity of 0.5626mg/g. The adsorption capacities of UV-aged PE, PVC and PS for DCF were 0.4884, 0.6077and 0.6382mg/g, respectively, which were stronger than that of the original MPs. The adsorption amount of DCF by MPs before and after aging both decreased with increasing pH or the increase in salinity and humic acid concentration. The adsorption process for DCF by MPs was divided into three stages, i.e., liquid film diffusion, particle internal diffusion, and adsorption equilibrium, and the adsorption mechanism mainly involved physical adsorption dominated by hydrophobic interactions, van der Waals forces, hydrogen bonding and electrostatic interactions.

microplastics  /  diclofenac  /  ultraviolet aging  /  adsorption behavior
刘义青, 邹清华, 张又中, 胡虹, 陈传曾. 紫外老化对微塑料吸附双氯芬酸的影响. 中国环境科学, 2026 , 46 (3) : 1398 -1406 .
Yi-qing LIU, Qing-hua ZOU, You-zhong ZHANG, Hong HU, Chuan-zeng CHEN. Effect of ultraviolet aging on the adsorption of diclofenac by microplastics[J]. China Environmental Science, 2026 , 46 (3) : 1398 -1406 .
  • 国家重点研发计划青年科学家项目(2023YFB2390100)
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  • 接收时间:2025-08-16
  • 首发时间:2026-10-08
  • 出版时间:2026-03-20
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  • 收稿日期:2025-08-16
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国家重点研发计划青年科学家项目(2023YFB2390100)
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    西南交通大学环境科学与工程学院,四川 成都 611756

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* 责任作者,副教授,
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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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