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In this study, the UV activated periodate (PI, IO4-) system (UV/PI) was investigated to degrade PhACs in urine (UV(10W low pressure, peak at 254nm), PI (5mmol/L)), the results demonstrated that the degradation rate of 12 selected Pharmaceutically active compounds (PhACs) exceeded 60% at 10min; based on this, the influence of urine matrix on PhACs degradation was further studied. In fresh urine matrices, urea and citrate reacted with the radicals, inhibiting the degradation of PhACs, with the rate constant ki decreasing by about 0.0083~0.0129s-1 compared to the UV/PI system. Meanwhile, Cl- reacted with the radicals to form lower reactive chlorine species (RCS), which negatively affected the degradation efficiency, with the ki decreasing by about 0.0015~0.0056s-1. In hydrolyzed urine matrices, urea and citrate were hydrolyzed into NH3 and HCO3-. Then, NH3 and HCO3- reacted with the radicals to produce reactive nitrogen species (RNS) and CO3·-, which further reacted with PhACs. UV/PI system exhibited significant structural selectivity for the degradation of PhACs.

, authors=Xiao HONG, Shi-rong ZHAO, Ya-jie QIAN*, authorsList=Xiao HONG, Shi-rong ZHAO, Ya-jie QIAN, authorCompany=null, correspAuthors=Ya-jie QIAN, 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=1314918277525111102, articleId=1314918275444736316, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=UV活化高碘酸盐降解合成尿液中药物类污染物的效能与机制, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

构建了紫外活化高碘酸盐(PI, IO4-)的UV/PI体系(UV(10W低压,峰值在254nm),PI(5mmol/L)),并考察了该体系在尿液中降解药物的效能.结果表明,所选的12种药物类污染物(PhACs)在10min的去除率达到60%以上;在此基础上,进一步评估了尿液基质对UV/PI体系降解污染物的影响.在新鲜尿液基质中,尿素和柠檬酸盐可与体系中的自由基反应,进而抑制PhACs的降解,速率常数ki值较UV/PI体系减小了约0.0083~0.0129s-1;而Cl-与自由基反应生成活性更低的活性氯物质(RCS)进而影响降解效率,速率常数ki值减小了约0.0015~0.0056s-1.在水解尿液基质中,尿素和柠檬酸盐被水解为NH3和HCO3-,NH3和HCO3-与自由基反生成活性氮物质(RNS)和CO3·-从而降解PhACs,UV/PI体系对PhACs的降解表现出显著的结构选择性.

, authors=洪晓, 赵世荣, 钱雅洁*, authorsList=洪晓, 赵世荣, 钱雅洁, authorCompany=null, correspAuthors=钱雅洁, authorNote=

洪晓(2001-),女,湖南衡阳人,东华大学硕士研究生,主要从事水污染控制理论与技术研究.发表论文1篇..

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洪晓(2001-),女,湖南衡阳人,东华大学硕士研究生,主要从事水污染控制理论与技术研究.发表论文1篇..

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洪晓(2001-),女,湖南衡阳人,东华大学硕士研究生,主要从事水污染控制理论与技术研究.发表论文1篇..

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UV活化高碘酸盐降解合成尿液中药物类污染物的效能与机制
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洪晓 , 赵世荣 , 钱雅洁 *
中国环境科学 | 水污染与控制 2025,45(10): 5509-5516
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中国环境科学 |水污染与控制 2025 , 45 (10) : 5509 -5516
UV活化高碘酸盐降解合成尿液中药物类污染物的效能与机制
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洪晓 , 赵世荣, 钱雅洁*
作者信息
  • 东华大学环境科学与工程学院,上海 201620
通讯作者:
* 责任作者,教授,
作者简介:

洪晓(2001-),女,湖南衡阳人,东华大学硕士研究生,主要从事水污染控制理论与技术研究.发表论文1篇..

Efficiency and mechanism of UV-activated periodate for degradation of pharmaceutically active compounds in synthetic urine
Xiao HONG , Shi-rong ZHAO, Ya-jie QIAN*
Affiliations
  • College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
出版时间: 2025-10-20
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构建了紫外活化高碘酸盐(PI, IO4-)的UV/PI体系(UV(10W低压,峰值在254nm),PI(5mmol/L)),并考察了该体系在尿液中降解药物的效能.结果表明,所选的12种药物类污染物(PhACs)在10min的去除率达到60%以上;在此基础上,进一步评估了尿液基质对UV/PI体系降解污染物的影响.在新鲜尿液基质中,尿素和柠檬酸盐可与体系中的自由基反应,进而抑制PhACs的降解,速率常数ki值较UV/PI体系减小了约0.0083~0.0129s-1;而Cl-与自由基反应生成活性更低的活性氯物质(RCS)进而影响降解效率,速率常数ki值减小了约0.0015~0.0056s-1.在水解尿液基质中,尿素和柠檬酸盐被水解为NH3和HCO3-,NH3和HCO3-与自由基反生成活性氮物质(RNS)和CO3·-从而降解PhACs,UV/PI体系对PhACs的降解表现出显著的结构选择性.

高碘酸盐  /  高级氧化  /  自由基  /  药物类污染物

In this study, the UV activated periodate (PI, IO4-) system (UV/PI) was investigated to degrade PhACs in urine (UV(10W low pressure, peak at 254nm), PI (5mmol/L)), the results demonstrated that the degradation rate of 12 selected Pharmaceutically active compounds (PhACs) exceeded 60% at 10min; based on this, the influence of urine matrix on PhACs degradation was further studied. In fresh urine matrices, urea and citrate reacted with the radicals, inhibiting the degradation of PhACs, with the rate constant ki decreasing by about 0.0083~0.0129s-1 compared to the UV/PI system. Meanwhile, Cl- reacted with the radicals to form lower reactive chlorine species (RCS), which negatively affected the degradation efficiency, with the ki decreasing by about 0.0015~0.0056s-1. In hydrolyzed urine matrices, urea and citrate were hydrolyzed into NH3 and HCO3-. Then, NH3 and HCO3- reacted with the radicals to produce reactive nitrogen species (RNS) and CO3·-, which further reacted with PhACs. UV/PI system exhibited significant structural selectivity for the degradation of PhACs.

periodate  /  advanced oxidation  /  radicals  /  pharmaceutically active compounds
洪晓, 赵世荣, 钱雅洁. UV活化高碘酸盐降解合成尿液中药物类污染物的效能与机制. 中国环境科学, 2025 , 45 (10) : 5509 -5516 .
Xiao HONG, Shi-rong ZHAO, Ya-jie QIAN. Efficiency and mechanism of UV-activated periodate for degradation of pharmaceutically active compounds in synthetic urine[J]. China Environmental Science, 2025 , 45 (10) : 5509 -5516 .
  • 国家自然科学基金资助项目(52370068)
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  • 接收时间:2025-03-16
  • 首发时间:2026-10-08
  • 出版时间:2025-10-20
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  • 收稿日期:2025-03-16
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国家自然科学基金资助项目(52370068)
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    东华大学环境科学与工程学院,上海 201620

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