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CO2-Induced Reversible Dispersion of Graphene by a Melamine Derivative

Hongyao Yin, Hanbin Liu, Wei Wang, Yujun Feng

Langmuir. 2015 Nov 10;31(44):12260-7.

PMID: 26485183

Abstract:

Smart graphene with stimuli-responsive dispersity has great potential for applications in medical and biochemical fields. Nevertheless, reversible dispersion/aggregation of graphene in water with biocompatible and removable trigger still represents a crucial challenge. Here, we report CO2-induced reversible graphene dispersion by noncovalent functionalization of reduced graphene oxide with N(2),N(4),N(6)-tris(3-(dimethylamino)propyl)-1,3,5-triazine-2,4,6-triamine (MET). It was demonstrated that MET can be strongly adsorbed on graphene surface through van der Waals interaction to facilitate dispersing graphene in water. Moreover, reversible aggregation/dispersion of graphene can be achieved simply by alternately bubbling CO2 and N2 to control the desorption/adsorption of MET on graphene surface.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
LS71759 Graphene dispersion Graphene dispersion Price
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