Recent Analytical and Environmental Approaches on Graphene Based Materials for Toxic Heavy Metals and Dye Pollutants

Prawit Nuengmatcha and Saksit Chanthai

Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand

Abstract

Recent approaches on synthesis and characterization of graphene based materials are reviewed. Some typical materials include graphene oxide, graphene oxide modified with thiol and amino groups, nanocomposite of graphene-metal oxides and graphene quantum dots. Graphene oxide posses a wide range of impressive properties with numerous studies of dye adsorption. The modified functional graphene oxides have also been applied for removal of some toxic heavy metals in aqueous solution. Regarding thermodynamic and kinetics study, their adsorption isotherms are well-known established according to their multifunctional materials. Some ternary nanocomposite materials with or without magnetic property of specific graphene-metal/metal oxide or biopolymers have been used in both photocatalytic and sonocatalytic degradation of different industrial dye pollutants. In addition, graphene quantum dots as either chemical sensor or biosensor via turn-on/turn-off on its fluorescence were mostly applied for highly sensitive and selective detection of inorganic and organic compounds in real samples.

Keywords

Graphene oxide, Graphene quantum dots, Multifunctional groups, Nanocomposite, dye, Heavy metal, Photocatalytic, Sonocatalytic, Chemical sensor.

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  • Asian J. Mat. Chem. /
  •  2016 /
  •  1(1) /
  •  pp 1-10
  • DOI:http://dx.doi.org/10.14233/ajmc.2016.AJMC-P8