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Kim, Kwang S.
Center for Superfunctional Materials (CSM)
Research Interests
  • Theoretical/experimental nanosciences, molecular electronics spectroscopy, energy materials

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Reduced graphene oxide-based hydrogels for the efficient capture of dye pollutants from aqueous solutions

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dc.contributor.author Tiwari, Jitendra N. ko
dc.contributor.author Mahesh, Kandula ko
dc.contributor.author Le, Nhien H. ko
dc.contributor.author Kemp, K. Christian ko
dc.contributor.author Timilsina, Rupak ko
dc.contributor.author Tiwari, Rajanish N. ko
dc.contributor.author Kim, Kwang S. ko
dc.date.available 2014-09-01T07:03:24Z -
dc.date.created 2014-09-01 ko
dc.date.issued 2013-05 -
dc.identifier.citation CARBON, v.56, no., pp.173 - 182 ko
dc.identifier.issn 0008-6223 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/5566 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84875215429 ko
dc.description.abstract Three dimensional (3D) reduced graphene oxide (RGO)-based hydrogels were synthesized by the reduction of graphene oxide using sodium ascorbate. During gelation, mono-, bi-, and trilayer graphene nanosheets self-assemble into a well-defined and interconnected 3D porous network through strong van der Waals and pi-pi interactions. The 3D RGO-based hydrogels showed a large surface area, and a uniform pore size distribution. The application of the 3D mesoporous material as an adsorbent for the removal of the organic dyes, methylene blue (MB) and rhodamine B (RhB), from aqueous solutions was investigated. The 3D RGO-based hydrogels showed excellent removal capabilities for MB (similar to 100%) and RhB (similar to 97%) due to adsorption through strong pi-pi stacking and anion-cation interactions. Toxicity tests show that the aqueous solutions purified by 3D RGO-based hydrogels are comparable to control experiments conducted using distilled water. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD ko
dc.subject Control experiments ko
dc.subject Distilled water ko
dc.subject Graphene nanosheets ko
dc.subject Graphene oxides ko
dc.subject Large surface area ko
dc.subject Porous networks ko
dc.subject Reduced graphene oxides (RGO) ko
dc.subject Sodium ascorbate ko
dc.title Reduced graphene oxide-based hydrogels for the efficient capture of dye pollutants from aqueous solutions ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84875215429 ko
dc.identifier.wosid 000317700200021 ko
dc.type.rims ART ko
dc.description.wostc 36 *
dc.description.scopustc 23 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-09-01 *
dc.identifier.doi 10.1016/j.carbon.2013.01.001 ko
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