Ionic cellulose-stabilized gold nanoparticles and their application in the catalytic reduction of 4-nitrophenol

J. Hwang; A. B. Siddique; Y. J. Kim; H. Lee; J. H. Maeng; Y. Ahn; J. S. Lee; H. S. Kim; H. Lee

doi:10.1039/C7RA11393E

Ionic cellulose-stabilized gold nanoparticles and their application in the catalytic reduction of 4-nitrophenol

J. Hwang,

†^a A. B. Siddique,†^a Y. J. Kim,^a H. Lee,

^a J. H. Maeng,^a Y. Ahn,

^a J. S. Lee,

^a H. S. Kim

*^a and H. Lee*^b

Author affiliations

* Corresponding authors

^a Department of Chemistry and Research Institute of Basic Sciences, Kyung Hee University, 26 Kyungheedaero, Dongdaemun-gu, Seoul 02447, Republic of Korea
E-mail: khs2004@khu.ac.kr

^b Clean Energy Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Sungbuk-gu, Seoul 02792, Republic of Korea
E-mail: hjlee@kist.re.kr

Abstract

A novel strategy for the synthesis of highly stable gold nanoparticles (GNPs) was designed by reducing HAuCl₄ with NaBH₄ in an aqueous solution of water-soluble ionic cellulose composed of dimethylimidazolium cations and phosphite-bound cellulose anions. NMR and UV-Vis analysis along with the measurement of the zeta potential suggest that the exceptionally high stability of GNPs originates from the strong interaction of GNPs with the phosphite groups of the ionic cellulose. The thus prepared GNPs exhibit excellent catalytic activity for the reduction of 4-nitrophenol to 4-aminophenol, a model hydrogenation reaction.

Article information

https://doi.org/10.1039/C7RA11393E

Article type

Paper

Submitted

16 Oct 2017

Accepted

23 Dec 2017

First published

08 Jan 2018

This article is Open Access

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RSC Adv., 2018,8, 1758-1763

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Ionic cellulose-stabilized gold nanoparticles and their application in the catalytic reduction of 4-nitrophenol

J. Hwang, A. B. Siddique, Y. J. Kim, H. Lee, J. H. Maeng, Y. Ahn, J. S. Lee, H. S. Kim and H. Lee, RSC Adv., 2018, 8, 1758 DOI: 10.1039/C7RA11393E

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Ionic cellulose-stabilized gold nanoparticles and their application in the catalytic reduction of 4-nitrophenol

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Ionic cellulose-stabilized gold nanoparticles and their application in the catalytic reduction of 4-nitrophenol

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