Reduced graphene oxide-based hydrogels for the efficient capture of dye pollutants from aqueous solutions
SCIE
SCOPUS
- Title
- Reduced graphene oxide-based hydrogels for the efficient capture of dye pollutants from aqueous solutions
- Authors
- Jitendra N. Tiwari; kandulamahesh; NhienLe; K. Christian Kemp; Rupak Timilsina; Rajanish N. Tiwari; Kim, KS
- Date Issued
- 2013-05
- Publisher
- Elsevier
- 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. (C) 2013 Elsevier Ltd. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15458
- DOI
- 10.1016/j.carbon.2013.01.001
- ISSN
- 0008-6223
- Article Type
- Article
- Citation
- Carbon, vol. 56, page. 173 - 182, 2013-05
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