DC Field | Value | Language |
---|---|---|
dc.contributor.author | SYED, MUHAMMAD HUSNAIN | - |
dc.contributor.author | Kim, Hyun Ju | - |
dc.contributor.author | Um, Wooyong | - |
dc.contributor.author | Chang, Yoon-Young | - |
dc.contributor.author | Chang, Yoon-Seok | - |
dc.date.accessioned | 2018-06-15T05:31:32Z | - |
dc.date.available | 2018-06-15T05:31:32Z | - |
dc.date.created | 2017-10-10 | - |
dc.date.issued | 2017-09 | - |
dc.identifier.issn | 0888-5885 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/50566 | - |
dc.description.abstract | A direct approach was presented to graft phosphonate groups on magnetic mesoporous carbon by an impregnation method with environmentally friendly precursors unlike the conventional methods involving a series of complicated steps and harsh conditions. Through the in situ reduction of Fe3+, magnetite particles of similar to 10 nm were successfully embedded into the mesopores, which was confirmed by HR-TEM. Surface characterization by X-ray photoelectron spectroscopy and Fourier transform infrared revealed phosphonate functional groups anchored through multidentate bonding with the surface of P-Fe-CMK-3. Due to the combined advantages of mesoporous pore size (5.5 nm), phosphonate ligands (1.42 mmol g(-1)), and magnetic sensitivity (5.20 emu g(-1)), this multifunctional adsorbent captured >85% of UO22+ within 5 min and the maximum adsorption capacity was 150 mg g(-1) at pH 4. The exceptionally high selectivity and efficiency of P-Fe-CMK-3 toward uranyl capture even in groundwater (K-d = 1 x 10(5) mL g(-1)), radioactive wastewater (K-d = 3 x 10(4) mL g(-1)), and seawater (K-d = 1 x 10(4) mL g(-1)) at V/m = 1000 mL g(-1) was better than that of the previously reported adsorbents. Importantly, the adsorbent maintained UO22+ adsorption efficiency >99% over five cycles due to the excellent chemical and structural stabilities. Above all, the adsorbent could be manipulated for UO22+ capture with help of a magnetic field in the real world, especially in case of nuclear accidents, decommissioning of nuclear power plants and/or uranium recovery from seawater. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | - |
dc.subject | ASSISTED CHEMICAL-SEPARATION | - |
dc.subject | NUCLEAR-WASTE STREAMS | - |
dc.subject | EFFICIENT REMOVAL | - |
dc.subject | MAGNETIC NANOPARTICLES | - |
dc.subject | RADIOACTIVE CESIUM | - |
dc.subject | AQUEOUS-SOLUTION | - |
dc.subject | DRINKING-WATER | - |
dc.subject | ACID SOLUTIONS | - |
dc.subject | NITRIC-ACID | - |
dc.subject | MINE WATER | - |
dc.title | Superparamagnetic Adsorbent Based on Phosphonate Grafted Mesoporous Carbon for Uranium Removal | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.iecr.7b01737 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.56, no.35, pp.9821 - 9830 | - |
dc.identifier.wosid | 000410255100005 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 9830 | - |
dc.citation.number | 35 | - |
dc.citation.startPage | 9821 | - |
dc.citation.title | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | - |
dc.citation.volume | 56 | - |
dc.contributor.affiliatedAuthor | SYED, MUHAMMAD HUSNAIN | - |
dc.contributor.affiliatedAuthor | Kim, Hyun Ju | - |
dc.contributor.affiliatedAuthor | Um, Wooyong | - |
dc.contributor.affiliatedAuthor | Chang, Yoon-Seok | - |
dc.identifier.scopusid | 2-s2.0-85028917006 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 7 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ASSISTED CHEMICAL-SEPARATION | - |
dc.subject.keywordPlus | NUCLEAR-WASTE STREAMS | - |
dc.subject.keywordPlus | EFFICIENT REMOVAL | - |
dc.subject.keywordPlus | MAGNETIC NANOPARTICLES | - |
dc.subject.keywordPlus | RADIOACTIVE CESIUM | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTION | - |
dc.subject.keywordPlus | DRINKING-WATER | - |
dc.subject.keywordPlus | ACID SOLUTIONS | - |
dc.subject.keywordPlus | NITRIC-ACID | - |
dc.subject.keywordPlus | MINE WATER | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.