Fabrication of manganese ferrite (MnFe2O4) microsphere-coated magnetic biochar composite for antimonate sequestration: Characterization, adsorption behavior, and mechanistic understanding
DC Field | Value | Language |
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dc.contributor.author | Lee, Seon Yong | - |
dc.contributor.author | Kim, Heegon | - |
dc.contributor.author | Jang, Haeseong | - |
dc.contributor.author | Hwang, Min-Jin | - |
dc.contributor.author | Lee, Ki Bong | - |
dc.contributor.author | Choi, Jae-Woo | - |
dc.contributor.author | Jung, Kyung-Won | - |
dc.date.accessioned | 2024-01-08T06:32:10Z | - |
dc.date.available | 2024-01-08T06:32:10Z | - |
dc.date.issued | 2022-03 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.issn | 1873-5584 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/69338 | - |
dc.description.abstract | A hierarchically structured manganese ferrite microsphere-coated magnetic biochar (BC) composite (MSMnFe2O4/MBC) was synthesized by a facile solvothermal process to remove Sb(V) from aqueous solutions. In addition to conventional analytical techniques (e.g., XRD, SEM, TEM, XPS), X-ray absorption spectroscopy (XAS) measurements, including X-ray absorption near edge structure and extended X-ray absorption fine structure, were employed to characterize the synthesized MS-MnFe2O4/MBC and to explore its mechanism of interaction with Sb(V) in aqueous solutions. Hierarchically structured single-phase MnFe2O4 microspheres composed of numerous nanocrystallites (6.5-7 nm) were successfully fabricated on the BC surface. The XAS analysis results indicated that MnFe2O4 microspheres consisted of Mn2+ and Fe3+ atoms and possessed a partially inverse spinel structure with an inversion degree of 0.4. After adsorption, the combined results of X-ray photoelectron spectroscopy and XAS analyses demonstrated that the valence state of the adsorbed Sb species was Sb(V), and that its interaction with MS-MnFe2O4/MBC was attributed to the inner-sphere surface complexation through bidentate mononuclear edge-sharing and bidentate binuclear corner-sharing. The high potential of the adsorbent for Sb(V) removal was demonstrated in two actual water matrices, viz., tap water and river water. Overall, the findings indicate that MS-MnFe2O4/MBC has excellent practical applicability for Sb(V) removal from contaminated water. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | ELSEVIER | - |
dc.title | Fabrication of manganese ferrite (MnFe2O4) microsphere-coated magnetic biochar composite for antimonate sequestration: Characterization, adsorption behavior, and mechanistic understanding | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.apsusc.2021.152005 | - |
dc.identifier.bibliographicCitation | APPLIED SURFACE SCIENCE, v.578 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000729993700005 | - |
dc.identifier.scopusid | 2-s2.0-85119973199 | - |
dc.citation.title | APPLIED SURFACE SCIENCE | - |
dc.citation.volume | 578 | - |
dc.type.docType | Article | - |
dc.publisher.location | 네델란드 | - |
dc.subject.keywordAuthor | Spinel manganese ferrite microspheres | - |
dc.subject.keywordAuthor | Magnetic biochar composite | - |
dc.subject.keywordAuthor | Antimonate | - |
dc.subject.keywordAuthor | Adsorption mechanisms | - |
dc.subject.keywordAuthor | X-ray absorption spectroscopy | - |
dc.subject.keywordPlus | FE HYDROLYTIC FLOCS | - |
dc.subject.keywordPlus | EFFICIENT REMOVAL | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTION | - |
dc.subject.keywordPlus | LOW-COST | - |
dc.subject.keywordPlus | ULTRAFILTRATION MEMBRANE | - |
dc.subject.keywordPlus | OXIDE NANOCOMPOSITES | - |
dc.subject.keywordPlus | CATION DISTRIBUTION | - |
dc.subject.keywordPlus | OXIDATION-STATE | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | WASTE-WATER | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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