PH-Dependent mechanisms and kinetics of the removal of ...

The kinetic simulation result is consistent with the above results, and the kinetics can be described using a surface complexation and transformation ... 跳至主導覽 跳至搜尋 跳過主要內容 PH-Dependentmechanismsandkineticsoftheremovalofacetaminophenbymanganesedioxide ChingYaoHu,WenHuiKuan,I.JuLee,YuJungLiu 公共衛生學系 研究成果:雜誌貢獻›文章›同行評審 5 引文 斯高帕斯（Scopus） 總覽 指紋 摘要 Acetaminopheniscommonlyfoundinaquaticenvironmentsbecauseitiswidelyusedasananalgesic.Inthisstudy,theextentoftransformationandadsorptionofacetaminophenbymanganesedioxide(MnO2)atdifferentpHconditionswassystematicallyinvestigated.TheadsorptionofacetaminophenbyMnO2wassignificantunderacidicconditionsbutnegligibleunderneutralandalkalineconditions.Thisindicatesthattherate-determiningstepsintheremovalofacetaminophenareelectrontransferunderacidicconditionsandprecursorcomplexformationunderneutralandalkalineconditions.Thekineticsimulationresultisconsistentwiththeaboveresults,andthekineticscanbedescribedusingasurfacecomplexationandtransformationkineticmodeliftheinitialconcentrationofacetaminophenexceedsthetotalconcentrationofthereactivesurfacesitesonMnO2.Otherwise,theMichaelis-Mentenmodelandthepseudo-first-orderkineticmodelcanbeusedtodescribetheremovalkineticsunderacidicconditionsandunderneutralandalkalineconditions,respectively.Themaintransformationproductswerep-benzoquinoneandadimerof4-aminophenolandacetaminophenunderacidicandalkalineconditions,respectively.Thisindicatesthatdehydration-oxidationisthemainpathwayonlyunderacidicconditions.Underalkalineconditions,themaintransformationmechanismisdimerization-hydrolysis. 原文英語文章編號105129期刊JournalofEnvironmentalChemicalEngineering卷9發行號2DOIshttps://doi.org/10.1016/j.jece.2021.105129出版狀態已發佈-4月2021 ASJCScopussubjectareas化學工程（雜項）廢物管理和處置污染製程化學與技術 存取文件 10.1016/j.jece.2021.105129 其它文件與鏈接 LinktopublicationinScopus Manganese Engineering&MaterialsScience 100% ManganeseDioxide ChemicalCompounds 99% AlkalineCondition ChemicalCompounds 81% AcidicCondition ChemicalCompounds 80% manganese Earth&EnvironmentalSciences 76% NeutralCondition ChemicalCompounds 57% Adsorption Engineering&MaterialsScience 54% kinetics Earth&EnvironmentalSciences 51% 引用此 APA Standard Harvard Vancouver Author BIBTEX RIS Hu,C.Y.,Kuan,W.H.,Lee,I.J.,&Liu,Y.J.(2021).PH-Dependentmechanismsandkineticsoftheremovalofacetaminophenbymanganesedioxide.JournalofEnvironmentalChemicalEngineering,9(2),[105129].https://doi.org/10.1016/j.jece.2021.105129 PH-Dependentmechanismsandkineticsoftheremovalofacetaminophenbymanganesedioxide./Hu,ChingYao;Kuan,WenHui;Lee,I.Ju等.於:JournalofEnvironmentalChemicalEngineering,卷9,編號2,105129,04.2021.研究成果:雜誌貢獻›文章›同行評審 Hu,CY,Kuan,WH,Lee,IJ&Liu,YJ2021,'PH-Dependentmechanismsandkineticsoftheremovalofacetaminophenbymanganesedioxide',JournalofEnvironmentalChemicalEngineering,卷9,編號2,105129.https://doi.org/10.1016/j.jece.2021.105129 HuCY,KuanWH,LeeIJ,LiuYJ.PH-Dependentmechanismsandkineticsoftheremovalofacetaminophenbymanganesedioxide.JournalofEnvironmentalChemicalEngineering.20214月;9(2).105129.https://doi.org/10.1016/j.jece.2021.105129 Hu,ChingYao;Kuan,WenHui;Lee,I.Ju等./PH-Dependentmechanismsandkineticsoftheremovalofacetaminophenbymanganesedioxide.於:JournalofEnvironmentalChemicalEngineering.2021;卷9,編號2. @article{55484ab2ff6042aa87122138a4aa43ba,title="PH-Dependentmechanismsandkineticsoftheremovalofacetaminophenbymanganesedioxide",abstract="Acetaminopheniscommonlyfoundinaquaticenvironmentsbecauseitiswidelyusedasananalgesic.Inthisstudy,theextentoftransformationandadsorptionofacetaminophenbymanganesedioxide(MnO2)atdifferentpHconditionswassystematicallyinvestigated.TheadsorptionofacetaminophenbyMnO2wassignificantunderacidicconditionsbutnegligibleunderneutralandalkalineconditions.Thisindicatesthattherate-determiningstepsintheremovalofacetaminophenareelectrontransferunderacidicconditionsandprecursorcomplexformationunderneutralandalkalineconditions.Thekineticsimulationresultisconsistentwiththeaboveresults,andthekineticscanbedescribedusingasurfacecomplexationandtransformationkineticmodeliftheinitialconcentrationofacetaminophenexceedsthetotalconcentrationofthereactivesurfacesitesonMnO2.Otherwise,theMichaelis-Mentenmodelandthepseudo-first-orderkineticmodelcanbeusedtodescribetheremovalkineticsunderacidicconditionsandunderneutralandalkalineconditions,respectively.Themaintransformationproductswerep-benzoquinoneandadimerof4-aminophenolandacetaminophenunderacidicandalkalineconditions,respectively.Thisindicatesthatdehydration-oxidationisthemainpathwayonlyunderacidicconditions.Underalkalineconditions,themaintransformationmechanismisdimerization-hydrolysis.",keywords="Acetaminophen,Manganesedioxide,Michaelis-Mentenkineticmodel,Surfacecomplexationmodel,Transformationkineticmodel",author="Hu,{ChingYao}andKuan,{WenHui}andLee,{I.Ju}andLiu,{YuJung}",note="FundingInformation:TheauthorswouldliketothanktheMinistryofScienceandTechnologyoftheRepublicofChinaforfinanciallysupportingthisresearch(contractno.MOST104-2221-E-038-001).PublisherCopyright:{\textcopyright}2021AmericanSocietyofCivilEngineers(ASCE).Allrightsreserved.Copyright:Copyright2021ElsevierB.V.,Allrightsreserved.",year="2021",month=apr,doi="10.1016/j.jece.2021.105129",language="English",volume="9",journal="JournalofEnvironmentalChemicalEngineering",issn="2213-3437",publisher="ElsevierBV",number="2",} TY-JOURT1-PH-DependentmechanismsandkineticsoftheremovalofacetaminophenbymanganesedioxideAU-Hu,ChingYaoAU-Kuan,WenHuiAU-Lee,I.JuAU-Liu,YuJungN1-FundingInformation: TheauthorswouldliketothanktheMinistryofScienceandTechnologyoftheRepublicofChinaforfinanciallysupportingthisresearch(contractno.MOST104-2221-E-038-001). PublisherCopyright: ©2021AmericanSocietyofCivilEngineers(ASCE).Allrightsreserved. Copyright: Copyright2021ElsevierB.V.,Allrightsreserved.PY-2021/4Y1-2021/4N2-Acetaminopheniscommonlyfoundinaquaticenvironmentsbecauseitiswidelyusedasananalgesic.Inthisstudy,theextentoftransformationandadsorptionofacetaminophenbymanganesedioxide(MnO2)atdifferentpHconditionswassystematicallyinvestigated.TheadsorptionofacetaminophenbyMnO2wassignificantunderacidicconditionsbutnegligibleunderneutralandalkalineconditions.Thisindicatesthattherate-determiningstepsintheremovalofacetaminophenareelectrontransferunderacidicconditionsandprecursorcomplexformationunderneutralandalkalineconditions.Thekineticsimulationresultisconsistentwiththeaboveresults,andthekineticscanbedescribedusingasurfacecomplexationandtransformationkineticmodeliftheinitialconcentrationofacetaminophenexceedsthetotalconcentrationofthereactivesurfacesitesonMnO2.Otherwise,theMichaelis-Mentenmodelandthepseudo-first-orderkineticmodelcanbeusedtodescribetheremovalkineticsunderacidicconditionsandunderneutralandalkalineconditions,respectively.Themaintransformationproductswerep-benzoquinoneandadimerof4-aminophenolandacetaminophenunderacidicandalkalineconditions,respectively.Thisindicatesthatdehydration-oxidationisthemainpathwayonlyunderacidicconditions.Underalkalineconditions,themaintransformationmechanismisdimerization-hydrolysis.AB-Acetaminopheniscommonlyfoundinaquaticenvironmentsbecauseitiswidelyusedasananalgesic.Inthisstudy,theextentoftransformationandadsorptionofacetaminophenbymanganesedioxide(MnO2)atdifferentpHconditionswassystematicallyinvestigated.TheadsorptionofacetaminophenbyMnO2wassignificantunderacidicconditionsbutnegligibleunderneutralandalkalineconditions.Thisindicatesthattherate-determiningstepsintheremovalofacetaminophenareelectrontransferunderacidicconditionsandprecursorcomplexformationunderneutralandalkalineconditions.Thekineticsimulationresultisconsistentwiththeaboveresults,andthekineticscanbedescribedusingasurfacecomplexationandtransformationkineticmodeliftheinitialconcentrationofacetaminophenexceedsthetotalconcentrationofthereactivesurfacesitesonMnO2.Otherwise,theMichaelis-Mentenmodelandthepseudo-first-orderkineticmodelcanbeusedtodescribetheremovalkineticsunderacidicconditionsandunderneutralandalkalineconditions,respectively.Themaintransformationproductswerep-benzoquinoneandadimerof4-aminophenolandacetaminophenunderacidicandalkalineconditions,respectively.Thisindicatesthatdehydration-oxidationisthemainpathwayonlyunderacidicconditions.Underalkalineconditions,themaintransformationmechanismisdimerization-hydrolysis.KW-AcetaminophenKW-ManganesedioxideKW-Michaelis-MentenkineticmodelKW-SurfacecomplexationmodelKW-TransformationkineticmodelUR-http://www.scopus.com/inward/record.url?scp=85100770978&partnerID=8YFLogxKUR-http://www.scopus.com/inward/citedby.url?scp=85100770978&partnerID=8YFLogxKU2-10.1016/j.jece.2021.105129DO-10.1016/j.jece.2021.105129M3-ArticleAN-SCOPUS:85100770978VL-9JO-JournalofEnvironmentalChemicalEngineeringJF-JournalofEnvironmentalChemicalEngineeringSN-2213-3437IS-2M1-105129ER-