Article(id=1314922033243316475, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314921940238828053, 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=1748534400000, receivedDateStr=2025-05-30, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791431442794, onlineDateStr=2026-10-08, pubDate=1768838400000, pubDateStr=2026-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791431442794, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791431442794, creator=13701087609, updateTime=1791431442794, updator=13701087609, issue=Issue{id=1314921940238828053, tenantId=1146029695717560320, journalId=1234093305789726721, year='2026', volume='46', issue='1', pageStart='1', pageEnd='592', issueExtLink='null', onlineDate='null', pubDate='1768838400000', pubDateStr='2026-01-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791431420621, creator='13701087609', updateTime=1791431552947, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314922495317210104, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314921940238828053, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314922495317210105, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314921940238828053, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=389, endPage=398, ext={EN=ArticleExt(id=1314922034040234236, articleId=1314922033243316475, tenantId=1146029695717560320, journalId=1234093305789726721, language=EN, title=Photofenton degradation of levofloxacin wastewater by hybrid biochar under circumneutral conditions, columnId=1240689620866887794, journalTitle=China Environmental Science, columnName=Emerging Contaminants, runingTitle=null, highlight=null, articleAbstract=

The zero-valent iron-activated persulfate (ZVI-PS) method was used for sludge dewatering. The dewatered sludge was then mixed with humic carbon (HC) and carbonized to successfully prepare a hybrid biochar catalyst. When applied to levofloxacin (LVFO)-containing wastewater treatment in a photofenton system, the catalyst exhibited excellent performance under circumneutral conditions. It effectively addressed the traditional Fenton system's dependence on acidic environments, thereby significantly broadening the applicable pH range. This study systematically investigated the effects of catalyst dosage, H2O2 concentration, xenon lamp power, and pH on LVFO degradation efficiency. The results showed that under optimal conditions (catalyst dosage: 1g/L, H2O2 dosage: 0.6mL/L, xenon lamp power: 300W, pH 7), the LVFO degradation rate by the hybrid biochar reached 92.58%—far higher than the 55.86% achieved by humic carbon. This superior performance was primarily attributed to the abundant iron species on the hybrid biochar surface, which facilitate iron cycling and thus enhance catalytic activity. Active species quenching experiments revealed that the system degrades LVFO mainly through the non-radical pathway of singlet oxygen (1O2), which explained its excellent degradation capacity under circumneutral conditions. After five cycles of reuse, the catalyst's iron leaching rate was below 0.56%, and it retained high catalytic efficiency. A potential LVFO degradation pathway was proposed based on three-dimensional fluorescence spectroscopy and intermediate product detection.

, authors=Xia ZHAO1, Hong-tao WANG1, Xiao-hong YU1, Jing YAN1, Ming-yi YANG1, Li WANG2, Li YU1, *, authorsList=Xia ZHAO, Hong-tao WANG, Xiao-hong YU, Jing YAN, Ming-yi YANG, Li WANG, Li YU, authorCompany=null, correspAuthors=Li YU, 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=1314922035181084926, articleId=1314922033243316475, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=近中性条件下复合生物炭光芬顿降解左氧氟沙星废水, columnId=1240689621210820752, journalTitle=中国环境科学, columnName=新污染物, runingTitle=null, highlight=null, articleAbstract=

采用零价铁活化过硫酸盐法(ZVI-PS)对污泥进行脱水,再将其与草泥炭(HC)混合炭化,成功制备出一种复合生物炭催化剂.将其用于光芬顿体系处理左氧氟沙星(LVFO)废水时,在近中性条件下表现出良好的处理效果,有效解决了传统芬顿体系对酸性环境的依赖问题,显著拓宽了pH值适用范围.系统考察了催化剂用量、H2O2投加量、氙灯功率和pH值等因素对左氧氟沙星降解效率的影响,结果表明,在催化剂用量1g/L、H2O2投加量0.6mL/L、氙灯功率300W且pH值为7的条件下,复合生物炭对LVFO的降解率高达92.58%,远高于草泥炭的55.86%.这主要归因于复合生物炭表面丰富的铁物种,有利于铁循环,从而有效提高了催化活性.通过活性物种淬灭实验揭示该体系主要通过单线态氧(1O2)的非自由基途径降解LVFO,在近中性条件下对LVFO仍具有出色的降解能力.重复使用5次后,催化剂铁溶出率低于0.56%,仍保持较高的催化效率.最后通过三维荧光和中间产物检测提出一种LVFO降解途径.

, authors=赵霞1, 王红涛1, 宇晓虹1, 闫晶1, 杨明义1, 王莉2, 余丽1, *, authorsList=赵霞, 王红涛, 宇晓虹, 闫晶, 杨明义, 王莉, 余丽, authorCompany=null, correspAuthors=余丽, authorNote=

赵霞(2001-),女,山西吕梁人,硕士,主要从事污泥炭催化降解有机废水研究..

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* 责任作者,副教授,
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赵霞(2001-),女,山西吕梁人,硕士,主要从事污泥炭催化降解有机废水研究..

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赵霞(2001-),女,山西吕梁人,硕士,主要从事污泥炭催化降解有机废水研究..

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近中性条件下复合生物炭光芬顿降解左氧氟沙星废水
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赵霞 1 , 王红涛 1 , 宇晓虹 1 , 闫晶 1 , 杨明义 1 , 王莉 2 , 余丽 1, *
中国环境科学 | 新污染物 2026,46(1): 389-398
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中国环境科学 |新污染物 2026 , 46 (1) : 389 -398
近中性条件下复合生物炭光芬顿降解左氧氟沙星废水
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赵霞1 , 王红涛1, 宇晓虹1, 闫晶1, 杨明义1, 王莉2, 余丽1, *
作者信息
  • 1.太原理工大学环境与生态学院,山西 太原 030024
  • 2.中国科学院大连化学物理研究所,辽宁 大连 116023
通讯作者:
* 责任作者,副教授,
作者简介:

赵霞(2001-),女,山西吕梁人,硕士,主要从事污泥炭催化降解有机废水研究..

Photofenton degradation of levofloxacin wastewater by hybrid biochar under circumneutral conditions
Xia ZHAO1 , Hong-tao WANG1, Xiao-hong YU1, Jing YAN1, Ming-yi YANG1, Li WANG2, Li YU1, *
Affiliations
  • 1.College of Environment and Ecology, Taiyuan University of Technology, Taiyuan 030024, China
  • 2.Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
出版时间: 2026-01-20
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采用零价铁活化过硫酸盐法(ZVI-PS)对污泥进行脱水,再将其与草泥炭(HC)混合炭化,成功制备出一种复合生物炭催化剂.将其用于光芬顿体系处理左氧氟沙星(LVFO)废水时,在近中性条件下表现出良好的处理效果,有效解决了传统芬顿体系对酸性环境的依赖问题,显著拓宽了pH值适用范围.系统考察了催化剂用量、H2O2投加量、氙灯功率和pH值等因素对左氧氟沙星降解效率的影响,结果表明,在催化剂用量1g/L、H2O2投加量0.6mL/L、氙灯功率300W且pH值为7的条件下,复合生物炭对LVFO的降解率高达92.58%,远高于草泥炭的55.86%.这主要归因于复合生物炭表面丰富的铁物种,有利于铁循环,从而有效提高了催化活性.通过活性物种淬灭实验揭示该体系主要通过单线态氧(1O2)的非自由基途径降解LVFO,在近中性条件下对LVFO仍具有出色的降解能力.重复使用5次后,催化剂铁溶出率低于0.56%,仍保持较高的催化效率.最后通过三维荧光和中间产物检测提出一种LVFO降解途径.

左氧氟沙星  /  复合生物炭  /  光芬顿  /  非自由基路径

The zero-valent iron-activated persulfate (ZVI-PS) method was used for sludge dewatering. The dewatered sludge was then mixed with humic carbon (HC) and carbonized to successfully prepare a hybrid biochar catalyst. When applied to levofloxacin (LVFO)-containing wastewater treatment in a photofenton system, the catalyst exhibited excellent performance under circumneutral conditions. It effectively addressed the traditional Fenton system's dependence on acidic environments, thereby significantly broadening the applicable pH range. This study systematically investigated the effects of catalyst dosage, H2O2 concentration, xenon lamp power, and pH on LVFO degradation efficiency. The results showed that under optimal conditions (catalyst dosage: 1g/L, H2O2 dosage: 0.6mL/L, xenon lamp power: 300W, pH 7), the LVFO degradation rate by the hybrid biochar reached 92.58%—far higher than the 55.86% achieved by humic carbon. This superior performance was primarily attributed to the abundant iron species on the hybrid biochar surface, which facilitate iron cycling and thus enhance catalytic activity. Active species quenching experiments revealed that the system degrades LVFO mainly through the non-radical pathway of singlet oxygen (1O2), which explained its excellent degradation capacity under circumneutral conditions. After five cycles of reuse, the catalyst's iron leaching rate was below 0.56%, and it retained high catalytic efficiency. A potential LVFO degradation pathway was proposed based on three-dimensional fluorescence spectroscopy and intermediate product detection.

levofloxacin  /  hybrid biochar  /  photofenton system  /  non-radical pathway
赵霞, 王红涛, 宇晓虹, 闫晶, 杨明义, 王莉, 余丽. 近中性条件下复合生物炭光芬顿降解左氧氟沙星废水. 中国环境科学, 2026 , 46 (1) : 389 -398 .
Xia ZHAO, Hong-tao WANG, Xiao-hong YU, Jing YAN, Ming-yi YANG, Li WANG, Li YU. Photofenton degradation of levofloxacin wastewater by hybrid biochar under circumneutral conditions[J]. China Environmental Science, 2026 , 46 (1) : 389 -398 .
  • 山西省基础研究计划资助项目(202303021211081)
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  • 接收时间:2025-05-30
  • 首发时间:2026-10-08
  • 出版时间:2026-01-20
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  • 收稿日期:2025-05-30
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山西省基础研究计划资助项目(202303021211081)
作者信息
    1.太原理工大学环境与生态学院,山西 太原 030024
    2.中国科学院大连化学物理研究所,辽宁 大连 116023

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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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