Agglomeration-Free Fe3O4 anchored via nitrogen mediation of carbon nanotubes for high-performance arsenic adsorption

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dc.contributor.authorLee, Jung Wooko
dc.contributor.authorJeong, Hyung Moko
dc.contributor.authorLee, Gyu Heonko
dc.contributor.authorJung, Yeon Wookko
dc.contributor.authorJo, Seung Geunko
dc.contributor.authorKang, Jeung Kuko
dc.date.accessioned2021-04-20T01:30:09Z-
dc.date.available2021-04-20T01:30:09Z-
dc.date.created2021-04-19-
dc.date.created2021-04-19-
dc.date.issued2021-06-
dc.identifier.citationJOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v.9, no.3-
dc.identifier.issn2213-3437-
dc.identifier.urihttp://hdl.handle.net/10203/282452-
dc.description.abstractWe report a highly efficient method for arsenic adsorption using the agglomeration-free Fe3O4 nanoparticles (NPs) attached on N-doped carbon nanotubes (NCNTs), where the size-controlled NPs have been fabricated via the so called the “N-mediated nucleation” of NCNTs. The binding characteristics of NPs were further clarified via first-principles calculation and support that pyridine-like nitrogen states results in formation of ∼ 6 Å pores in sizes on the synthesized NCNTs. Moreover, we demonstrate from TEM, EDS, XPS and XRD analyses that the agglomeration-free NPs in the Fe3O4 phase could be just prepared in a few minutes via their strong binding interactions with N atoms. On the other hand, NP-CNT showed agglomerated large NP clusters and non-uniform NP anchoring on the CNT surface. Indeed, the removal in the form of As2O3 or As2O5 on the NPs-NCNT is proven to be highly selective and ∼6 times higher than that on pristine magnetite NP, in addition to providing a great potential for removal of contaminated As even from the continuously flowing water.-
dc.languageEnglish-
dc.publisherELSEVIER SCI LTD-
dc.titleAgglomeration-Free Fe3O4 anchored via nitrogen mediation of carbon nanotubes for high-performance arsenic adsorption-
dc.typeArticle-
dc.identifier.wosid000632623300005-
dc.identifier.scopusid2-s2.0-85101152745-
dc.type.rimsART-
dc.citation.volume9-
dc.citation.issue3-
dc.citation.publicationnameJOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING-
dc.identifier.doi10.1016/j.jece.2020.104772-
dc.contributor.localauthorKang, Jeung Ku-
dc.contributor.nonIdAuthorLee, Jung Woo-
dc.contributor.nonIdAuthorJeong, Hyung Mo-
dc.contributor.nonIdAuthorJung, Yeon Wook-
dc.contributor.nonIdAuthorJo, Seung Geun-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorHigh-performance arsenic removal-
dc.subject.keywordAuthorAgglomeration-Free Fe3O4-
dc.subject.keywordAuthorNitrogen-Mediation of carbon nanotube-
dc.subject.keywordAuthorCombined experiments and first-principles calculations-
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