pH-Responsive Chitosan-Mediated Graphene Dispersions

Homogeneous aqueous suspensions of graphene have been prepared by chemical reduction of graphene oxide in the presence of chitosan. The graphene sheets in thus prepared suspensions can be switched reversibly between a well dispersed and a more aggregated state with pH as a stimulus.

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Bibliographische Detailangaben
Veröffentlicht in:	Langmuir 2010-11, Vol.26 (22), p.16771-16774
Hauptverfasser:	Fang, Ming, Long, Jiang, Zhao, Weifeng, Wang, Liwei, Chen, Guohua
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Chitosan - chemistry Colloids: Surfactants and Self-Assembly, Dispersions, Emulsions, Foams Exact sciences and technology General and physical chemistry Graphite - chemistry Hydrogen-Ion Concentration Microscopy, Atomic Force Microscopy, Electron, Scanning Oxides - chemistry Suspensions
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Beschreibung
Zusammenfassung:	Homogeneous aqueous suspensions of graphene have been prepared by chemical reduction of graphene oxide in the presence of chitosan. The graphene sheets in thus prepared suspensions can be switched reversibly between a well dispersed and a more aggregated state with pH as a stimulus.
ISSN:	0743-7463 1520-5827
DOI:	10.1021/la102703b