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Biochar-supported nZVI (nZVI/BC) for contaminant removal from soil and water: A critical review

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dc.contributor.authorWang, Shengsen-
dc.contributor.authorZhao, Mingyue-
dc.contributor.authorZhou, Min-
dc.contributor.authorLi, Yuncong C.-
dc.contributor.authorWang, Jun-
dc.contributor.authorGao, Bin-
dc.contributor.authorSato, Shinjiro-
dc.contributor.authorFeng, Ke-
dc.contributor.authorYin, Weiqin-
dc.contributor.authorIgalavithana, Avanthi Deshani-
dc.contributor.authorOleszczuk, Patryk-
dc.contributor.authorWang, Xiaozhi-
dc.contributor.authorOk, Yong Sik-
dc.date.accessioned2021-09-01T12:03:22Z-
dc.date.available2021-09-01T12:03:22Z-
dc.date.created2021-06-19-
dc.date.issued2019-07-05-
dc.identifier.issn0304-3894-
dc.identifier.urihttps://scholar.korea.ac.kr/handle/2021.sw.korea/64137-
dc.description.abstractThe promising characteristics of nanoscale zero-valent iron (nZVI) have not been fully exploited owing to intrinsic limitations. Carbon-enriched biochar (BC) has been widely used to overcome the limitations of nZVI and improve its reaction with environmental pollutants. This work reviews the preparation of nZVI/BC nanocomposites; the effects of BC as a supporting matrix on the nZVI crystallite size, dispersion, and oxidation and electron transfer capacity; and its interaction mechanisms with contaminants. The literature review suggests that the properties and preparation conditions of BC (e.g., pore structure, functional groups, feedstock composition, and pyrogenic temperature) play important roles in the manipulation of nZVI properties. This review discusses the interactions of nZVI/BC composites with heavy metals, nitrates, and organic compounds in soil and water. Overall, BC contributes to the removal of contaminants because it can attenuate contaminants on the surface of nZVI/BC; it also enhances electron transfer from nZVI to target contaminants owing to its good electrical conductivity and improves the crystallite size and dispersion of nZVI. This review is intended to provide insights into methods of optimizing nZVI/BC synthesis and maximizing the efficiency of nZVI in environmental cleanup.-
dc.languageEnglish-
dc.language.isoen-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectZERO-VALENT IRON-
dc.subjectPOLYCYCLIC AROMATIC-HYDROCARBONS-
dc.subjectNANO ZEROVALENT IRON-
dc.subjectMEDIATED REDUCTIVE TRANSFORMATION-
dc.subjectELECTRON-TRANSFER-
dc.subjectACTIVATED CARBON-
dc.subjectHEXAVALENT CHROMIUM-
dc.subjectAQUEOUS-SOLUTIONS-
dc.subjectWASTE-WATER-
dc.subjectGROUNDWATER REMEDIATION-
dc.titleBiochar-supported nZVI (nZVI/BC) for contaminant removal from soil and water: A critical review-
dc.typeArticle-
dc.contributor.affiliatedAuthorOk, Yong Sik-
dc.identifier.doi10.1016/j.jhazmat.2019.03.080-
dc.identifier.scopusid2-s2.0-85064072467-
dc.identifier.wosid000472691800087-
dc.identifier.bibliographicCitationJOURNAL OF HAZARDOUS MATERIALS, v.373, pp.820 - 834-
dc.relation.isPartOfJOURNAL OF HAZARDOUS MATERIALS-
dc.citation.titleJOURNAL OF HAZARDOUS MATERIALS-
dc.citation.volume373-
dc.citation.startPage820-
dc.citation.endPage834-
dc.type.rimsART-
dc.type.docTypeReview-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaEngineering-
dc.relation.journalResearchAreaEnvironmental Sciences & Ecology-
dc.relation.journalWebOfScienceCategoryEngineering, Environmental-
dc.relation.journalWebOfScienceCategoryEnvironmental Sciences-
dc.subject.keywordPlusZERO-VALENT IRON-
dc.subject.keywordPlusPOLYCYCLIC AROMATIC-HYDROCARBONS-
dc.subject.keywordPlusNANO ZEROVALENT IRON-
dc.subject.keywordPlusMEDIATED REDUCTIVE TRANSFORMATION-
dc.subject.keywordPlusELECTRON-TRANSFER-
dc.subject.keywordPlusACTIVATED CARBON-
dc.subject.keywordPlusHEXAVALENT CHROMIUM-
dc.subject.keywordPlusAQUEOUS-SOLUTIONS-
dc.subject.keywordPlusWASTE-WATER-
dc.subject.keywordPlusGROUNDWATER REMEDIATION-
dc.subject.keywordAuthorBiochar-
dc.subject.keywordAuthorNanoscale zero-valent iron-
dc.subject.keywordAuthorElectron transfer-
dc.subject.keywordAuthorHeavy metals-
dc.subject.keywordAuthorOrganic compounds-
dc.subject.keywordAuthorSoil remediation-
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