Jump to main content
Jump to site search

Issue 2, 2016
Previous Article Next Article

Macroporous three-dimensional graphene oxide foams for dye adsorption and antibacterial applications

Author affiliations

Abstract

Several reports illustrate the wide range applicability of graphene oxide (GO) in water remediation. However, a few layers of graphene oxide tend to aggregate under saline conditions thereby reducing its activity. The effects of aggregation can be minimized by having a random arrangement of GO layers in a three dimensional architecture. The current study emphasizes the potential benefits of highly porous, ultralight graphene oxide foams in environmental applications. These foams were prepared by a facile and cost effective lyophilization technique. The 3D architecture allowed the direct use of these foams in the removal of aqueous pollutants without any pretreatment such as ultrasonication. Due to its macroporous nature, the foams exhibited excellent adsorption abilities towards carcinogenic dyes such as rhodamine B (RB), malachite green (MG) and acriflavine (AF) with respective sorption capacities of 446, 321 and 228 mg g−1 of foam. These foams were also further investigated for antibacterial activities against E. coli bacteria in aqueous and nutrient growth media. The random arrangement of GO layers in the porous foam architecture allowed it to exhibit excellent antibacterial activity even under physiological conditions by following the classical wrapping-perturbation mechanism. These results demonstrate the vast scope of GO foam in water remediation for both dye removal and antibacterial activity.

Graphical abstract: Macroporous three-dimensional graphene oxide foams for dye adsorption and antibacterial applications

Back to tab navigation

Supplementary files

Publication details

The article was received on 26 Sep 2015, accepted on 16 Dec 2015 and first published on 18 Dec 2015


Article type: Paper
DOI: 10.1039/C5RA19925E
Author version
available:
Download author version (PDF)
Citation: RSC Adv., 2016,6, 1231-1242
  • Open access: Creative Commons BY license
  •   Request permissions

    Macroporous three-dimensional graphene oxide foams for dye adsorption and antibacterial applications

    S. Jayanthi, N. KrishnaRao Eswar, S. A. Singh, K. Chatterjee, G. Madras and A. K. Sood, RSC Adv., 2016, 6, 1231
    DOI: 10.1039/C5RA19925E

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements