Facile synthesis of single crystalline gold nanoplates and SERS investigations of 4-aminothiophenol

Beibei Cao; Bin Liu; Jianhui Yang

doi:10.1039/C3CE00076A

Facile synthesis of single crystalline gold nanoplates and SERS investigations of 4-aminothiophenol

Beibei Cao,^a Bin Liu^a and Jianhui Yang*^a

* Corresponding authors

^a Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry and Materials Science, Northwest University, Xi'an 710069, People's Republic of China
E-mail: yjhzhj@yahoo.com

Abstract

Single crystalline gold nanoplates with micrometer-scale sizes that are tens of nanometers in thickness were synthesized by reducing HAuCl₄ with the disodium salt of ethylenediaminetetraacetic acid (Na₂EDTA) in the presence of hexadecyltrimethylammonium bromide (CTAB) in aqueous solution. The results indicated that CTAB plays an important role in the formation of single crystalline gold nanoplates. The application of the as-prepared nanoplates in surface-enhanced Raman spectroscopy (SERS) was investigated by using 4-aminothiophenol (PATP) as probe molecules. As a result of the sharp corners and edges in their shape, the resultant Au nanoplates exhibit excellent Raman enhancement ability. It was found that PATP can be oxidatively transformed into 4,4′-dimercaptoazobenzene on the surface of Au nanoplates during the SERS measurement.

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Publication details

The article was received on 14 Jan 2013, accepted on 15 May 2013 and first published on 15 May 2013

Article type: Paper

DOI: 10.1039/C3CE00076A

Citation: CrystEngComm, 2013,15, 5735-5738

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Facile synthesis of single crystalline gold nanoplates and SERS investigations of 4-aminothiophenol

B. Cao, B. Liu and J. Yang, CrystEngComm, 2013, 15, 5735
DOI: 10.1039/C3CE00076A
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CrystEngComm

Facile synthesis of single crystalline gold nanoplates and SERS investigations of 4-aminothiophenol

Abstract

Supplementary files

Publication details

Facile synthesis of single crystalline gold nanoplates and SERS investigations of 4-aminothiophenol

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