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dc.contributor.authorWang, Yuxian
dc.contributor.authorSun, Hongqi
dc.contributor.authorAng, Ming
dc.contributor.authorTade, Moses
dc.contributor.authorWang, Shaobin
dc.date.accessioned2017-01-30T15:29:06Z
dc.date.available2017-01-30T15:29:06Z
dc.date.created2015-01-29T20:00:51Z
dc.date.issued2014
dc.identifier.citationWang, Y. and Sun, H. and Ang, M. and Tade, M. and Wang, S. 2014. Synthesis of magnetic core/shell carbon nanosphere supported manganese catalysts for oxidation of organics in water by peroxymonosulfate. Journal of Colloid and Interface Science. 433: pp. 68-75.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/46751
dc.identifier.doi10.1016/j.jcis.2014.07.018
dc.description.abstract

Magnetic separation is more cost-effective than conventional separation processes in heterogeneous catalysis, especially for ultrafine nanoparticles. Magnetic core/shell nanospheres (MCS, Fe3O4/carbon) were synthesized by a hydrothermal method and their supported manganese oxide nanoparticles (Mn/ MCS) were obtained by redox reactions between MCS and potassium permanganate at a low temperature. The materials were analyzed by a variety of characterization techniques such as powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectrometer (EDS), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and N2 adsorption/desorption. The Mn/MCS catalysts were able to effectively activate Oxone for phenol degradation in aqueous solutions. Nitrogen treated MCS supported Mn achieved 100% conversion within 120 min. Kinetic studies showed that phenol degradation over supported Mn catalysts follows the first order kinetics. It was also found that the catalysts can be easily separated from the aqueous solutions by an external magnetic field. The Oxone activation mechanism by Mn/MCS catalysts was discussed and sulfate radicals were suggested to be the primary reactive species generated from peroxymonosulfate (PMS) for phenol catalytic oxidation.

dc.publisherAcademic Press
dc.titleSynthesis of magnetic core/shell carbon nanosphere supported manganese catalysts for oxidation of organics in water by peroxymonosulfate
dc.typeJournal Article
dcterms.source.volume433
dcterms.source.startPage68
dcterms.source.endPage75
dcterms.source.issn0021-9797
dcterms.source.titleJournal of Colloid and Interface Science
curtin.departmentDepartment of Chemical Engineering
curtin.accessStatusFulltext not available


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