Ferric carbide nanocrystals encapsulated in nitrogen-doped carbon nanotubes as an outstanding environmental catalyst

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dc.contributor.authorWang, C.
dc.contributor.authorKang, J.
dc.contributor.authorLiang, P.
dc.contributor.authorZhang, H.
dc.contributor.authorSun, H.
dc.contributor.authorTadé, M.O.
dc.contributor.authorWang, S.
dc.date.issued2017
dc.descriptionPrint edition (ISSN 2051-8153) is obsolete. eISSN entered is active. Published on 10 November 2016
dc.description.abstractNitrogen-doped carbon nanotubes encapsulating iron carbide (Fe₃C) nanocrystals (Fe₃C@NCNT) were fabricated by a simple and direct pyrolysis method using melamine and ferric chloride as the C, N and Fe precursors. The surface morphology, structure and composition of the Fe₃C@NCNT materials were thoroughly investigated. The nanomaterials were employed as novel catalysts for peroxymonosulfate (PMS) activation; outstanding efficiency, high stability and excellent reusability were observed in the catalytic oxidation of organics. The encapsulated Fe₃C nanoparticles played a key role in the emerging synergetic effects of the carbide and the protective graphitic layers. In addition, the quaternary N and trace amounts of iron on the CNT surface acted as the active sites. Various quenching experiments were carried out to elucidate the catalytic mechanism of Fe₃C@NCNT. It was found that singlet oxygen, superoxide, sulfate and hydroxyl radicals worked together to degrade phenol solutions. Due to their simple synthesis method, low-cost precursors, unique structure and excellent catalytic activity and stability, these novel iron-carbide-based composites have great potential as new strategic materials for environmental catalysis.
dc.description.statementofresponsibilityChen Wang, Jian Kang, Ping Liang, Huayang Zhang, Hongqi Sun, Moses O. Tadé and Shaobin Wang
dc.identifier.citationEnvironmental Science: Nano, 2017; 4(1):170-179
dc.identifier.doi10.1039/C6EN00397D
dc.identifier.issn2051-8153
dc.identifier.issn2051-8161
dc.identifier.orcidWang, S. [0000-0002-1751-9162]
dc.identifier.urihttp://hdl.handle.net/2440/115799
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.relation.granthttp://purl.org/au-research/grants/arc/DP130101319
dc.rightsThis journal is © The Royal Society of Chemistry 2017. Open Access Article. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
dc.source.urihttps://doi.org/10.1039/c6en00397d
dc.titleFerric carbide nanocrystals encapsulated in nitrogen-doped carbon nanotubes as an outstanding environmental catalyst
dc.typeJournal article
pubs.publication-statusPublished

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