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Synthesis of an oxidized mesoporous carbon-based magnetic composite and its application for heavy metal removal from aqueous solutions
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yi, In-Geol | - |
dc.contributor.author | Kang, Jin-Kyu | - |
dc.contributor.author | Lee, Seung-Chan | - |
dc.contributor.author | Lee, Chang-Gu | - |
dc.contributor.author | Kim, Song-Bae | - |
dc.date.accessioned | 2022-06-24T07:15:53Z | - |
dc.date.available | 2022-06-24T07:15:53Z | - |
dc.date.created | 2020-03-26 | - |
dc.date.issued | 2019-05 | - |
dc.identifier.citation | Microporous and Mesoporous Materials, Vol.279, pp.45-52 | - |
dc.identifier.issn | 1387-1811 | - |
dc.identifier.uri | https://hdl.handle.net/10371/184032 | - |
dc.description.abstract | The aim of this study was to synthesize and consider an oxidized mesoporous carbon-based magnetic composite (M-O-MC) for heavy metal removal from aqueous solutions. The M-O-MC used was a black powdery particle that was attracted to external magnets and thus separated from aqueous solutions. The M-O-MC had an average particle size of 232 +/- 63 nm, with a BET specific surface area of 179 m(2)/g and a total pore volume of 0.18 cm(3)/ g. The X-ray diffractometer pattern of the M-O-MC showed characteristic peaks related to maghemite due to the impregnation of iron oxide nanoparticles. Fourier-transform infrared spectra showed that carboxylic and Fe-O bonds were assigned on the M-O-MC due to surface functionalization. The X-ray photoelectron spectra showed that carboxyl functional groups on the surface of the M-O-MC were involved in the adsorption of Cu(II). Batch tests were performed using Cu(II) as a target heavy metal. The Cu(II) adsorption to the M-O-MC was influenced by solution pH and other cations. In the four cycles of adsorption-desorption testing, the M-O-MC was successfully regenerated and reused, maintaining its magnetic property. The equilibrium time for the Cu(II) adsorption was 3 h, whereas the maximum adsorption capacity was 51.4 mg/g. The Cu(II) adsorption was endothermic, increasing with a rise in temperature from 15 degrees C to 45 degrees C. In batch tests with plating wastewater containing various metal ions (Cu(II), total Cr, Ni(II), Zn(II), etc.), the M-O-MC was applied as an adsorbent for the removal of heavy metal ions. | - |
dc.language | 영어 | - |
dc.publisher | Elsevier BV | - |
dc.title | Synthesis of an oxidized mesoporous carbon-based magnetic composite and its application for heavy metal removal from aqueous solutions | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.micromeso.2018.12.016 | - |
dc.citation.journaltitle | Microporous and Mesoporous Materials | - |
dc.identifier.wosid | 000460843500006 | - |
dc.identifier.scopusid | 2-s2.0-85058407460 | - |
dc.citation.endpage | 52 | - |
dc.citation.startpage | 45 | - |
dc.citation.volume | 279 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Kim, Song-Bae | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
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