NDLI: Catechin-capped gold nanoparticles: green synthesis, characterization, and catalytic activity toward 4-nitrophenol reduction.

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Catechin-capped gold nanoparticles: green synthesis, characterization, and catalytic activity toward 4-nitrophenol reduction.

Content Provider	Europe PMC
Author	Choi, Yoonho Choi, Myung-Jin Cha, Song-Hyun Kim, Yeong Shik Cho, Seonho Park, Youmie
Copyright Year	2014
Abstract	An eco-friendly approach is described for the green synthesis of gold nanoparticles using catechin as a reducing and capping agent. The reaction occurred at room temperature within 1 h without the use of any external energy and an excellent yield (99%) was obtained, as determined by inductively coupled plasma mass spectrometry. Various shapes of gold nanoparticles with an estimated diameter of 16.6 nm were green-synthesized. Notably, the capping of freshly synthesized gold nanoparticles by catechin was clearly visualized with the aid of microscopic techniques, including high-resolution transmission electron microscopy, atomic force microscopy, and field emission scanning electron microscopy. Strong peaks in the X-ray diffraction pattern of the as-prepared gold nanoparticles confirmed their crystalline nature. The catalytic activity of the as-prepared gold nanoparticles was observed in the reduction of 4-nitrophenol to 4-aminophenol in the presence of NaBH4. The results suggest that the newly prepared gold nanoparticles have potential uses in catalysis.
ISSN	19317573
Journal	Nanoscale Research Letters
Volume Number	9
PubMed Central reference number	PMC3944744
Issue Number	1
PubMed reference number	24589224
e-ISSN	1556276X
DOI	10.1186/1556-276x-9-103
Language	English
Publisher	Springer
Publisher Date	2014-03-03
Access Restriction	Open
Rights License	This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. Copyright © 2014 Choi et al.; licensee Springer.
Subject Keyword	Green synthesis Catechin Gold nanoparticles Catalysis 4-Nitrophenol reduction
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Condensed Matter Physics Materials Science

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