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Anchoring Gold Nanoparticles on Graphene Nanosheets Functionalized With Cationic Polyelectrolyte: A Novel Catalyst for 4-nitrophenol Reduction

Xiaoyun Qin, Wenbo Lu, Yonglan Luo, Guohui Chang, Abdullah M Asiri, Abdulrahman O Al-Youbi, Xuping Sun

J Nanosci Nanotechnol. 2012 Apr;12(4):2983-9.

PMID: 22849055

Abstract:

In this paper, a stable aqueous dispersion of graphene nanosheets (GNs) has been prepared by chemical reduction of graphene oxide (GO) with hydrazine hydrate in the presence of poly [(2-ethyldimethylammonioethyl methacrylate ethyl sulfate)-co-(1-vinylpyrrolidone)] (PQ11). Taking advantages of the fact that PQ11 is a positively charged polymer exhibiting reducing ability, we further demonstrated the subsequent decoration of GN with gold nanoparticals (AuNPs) by in-situ chemical reduction of HAuCl4. It was found that such nanocomposites exhibit good catalytic activity toward 4-nitrophenol (4-NP) reduction and the GN supports also enhance the catalytic activity via a synergistic effect.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP53633548 Poly[(2-ethyldimethylammonioethyl methacrylate ethyl sulfate)-co-(1-vinylpyrrolidone)] Poly[(2-ethyldimethylammonioethyl methacrylate ethyl sulfate)-co-(1-vinylpyrrolidone)] 53633-54-8 Price
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