Nanocarbons in different structural dimensions (0-3D) for phenol adsorption and metal-free catalytic oxidation

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dc.contributor.authorIndrawirawan, S.
dc.contributor.authorSun, H.
dc.contributor.authorDuan, X.
dc.contributor.authorWang, S.
dc.date.issued2015
dc.descriptionAvailable online 29 May 2015
dc.description.abstractMetal-free nanocarbon materials in different structural dimensions, such as 0D fullerene (C<inf>60</inf>), 1D single-walled carbon nanotubes (SWCNTs), 2D graphene nanoplate (GNP), 3D hexagonally-ordered mesoporous carbon (CMK-3) and cubically-ordered mesoporous carbon (CMK-8) were investigated for adsorption and catalytic oxidation of phenol in water solutions. A variety of characterisation techniques were used to investigate the properties of the carbon samples. It was found that structural dimension and heat treatment would significantly affect the performance of the nanocarbons in adsorption and catalysis. Both GNP and CMK-3 showed better phenol adsorption with around 40% phenol removal in 500mL of 20ppm solutions. The nanocarbons were also used for metal-free activation of peroxymonosulfate (PMS) to produce sulfate radicals for catalytic phenol oxidation. Efficient catalysis was observed on CMK-3, CMK-8 and SWCNTs. Thermal treatment of the nanocarbons at 350°C in nitrogen was conducted to modulate the crystal- and micro-structures and surface functional groups of the different nanocarbons. Enhancements at 2-fold in adsorption on SWCNTs and 7.5-fold in catalysis on CMK-8 were observed after the heat treatments. Mechanisms of adsorption and catalytic oxidation of phenol were discussed. This study contributes to the development of green materials for sustainable remediation of aqueous organic pollutants.
dc.description.statementofresponsibilityStacey Indrawirawan, Hongqi Sun∗, Xiaoguang Duan, Shaobin Wang∗
dc.identifier.citationApplied Catalysis B: Environmental, 2015; 179:352-362
dc.identifier.doi10.1016/j.apcatb.2015.05.049
dc.identifier.issn0926-3373
dc.identifier.issn1873-3883
dc.identifier.orcidDuan, X. [0000-0001-9635-5807]
dc.identifier.orcidWang, S. [0000-0002-1751-9162]
dc.identifier.urihttp://hdl.handle.net/2440/113645
dc.language.isoen
dc.publisherElsevier BV
dc.relation.granthttp://purl.org/au-research/grants/arc/DP130101319
dc.relation.granthttp://purl.org/au-research/grants/arc/LE120100026
dc.rights© 2015 Elsevier B.V. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.apcatb.2015.05.049
dc.subjectAdsorption; nanocarbon; advanced oxidation; peroxymonosulfate; water treatment
dc.titleNanocarbons in different structural dimensions (0-3D) for phenol adsorption and metal-free catalytic oxidation
dc.typeJournal article
pubs.publication-statusPublished

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