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Synergistic Effect Between Tea Polyphenols and Aluminum Flake on the Reduction of Graphene Oxide

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Chemical reduction of graphene oxide (GO) using nontoxic reductants is a promising and green approach to produce graphene with versatile functionalities in large scale. However, the relatively low reduction extent of the reduced graphene oxide (RGO) is the main hindrance for many applications. In the present work, significantly enhanced reduction of aqueous RGO suspension is achieved by the chemical reduction with combination of tea polyphenols (TPs) and aluminum flake. In comparison with the RGO reduced by TPs only, the defect of the RGO achieved by the combination of TPs and aluminum flake decrease by 6.70%. The sp 2 structure fraction in the RGO increases by 9.67% due to the synergistic effect between TPs and aluminum flake. In addition, a possible mechanism for the synergistic effect between TPs and aluminum flake on the enhanced reduction of RGO is proposed. This approach provides new significant insights on the efficient and environmentallyfriendly preparation of RGO with much improved quality.
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Keywords: Aluminum Flake; Reduced Graphene Oxide; Synergistic Effect; Tea Polyphenols

Document Type: Research Article

Affiliations: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640 Guangdong, People’s Republic of China

Publication date: 01 January 2017

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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