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Issue 9, 2019
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Glowing gold nanoparticle coating: restoring the lost property from bulk gold

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Abstract

The unique electronic, optical, and catalytic properties of AuNPs caused by localized surface plasmon resonance (LSPR) have attracted many scientists, but the LSPR diminishes the captivating luster of bulk gold. An exciting challenge is the fabrication of golden-colored AuNPs, but a decisive factor for controlling the absorption/reflection of AuNPs remains elusive. We now propose a simple and versatile method for the fabrication of glowing AuNPs to restore the “lost golden color” of AuNPs in combination with the deposition of AuNPs on a cellulose filter or a PET/cotton fabric by the successive ionic layer adsorption and reaction (SILAR) method and simple pencil drawing. The obtained materials exhibited the glowing golden-color on the pencil-drawn surface and common red and blue colors on the other parts. Surprisingly, the golden-colored AuNPs still maintain a catalytic activity different from that of bulk gold and could be used as a catalyst for the reduction of p-nitrophenol, pendimethalin or 2,4-dinitrophenol in the presence of NaBH4. We believe that the re-endowment of such a property characteristic of bulk gold into gold nanomaterials would lead to further advancement in the arts and culture as well as electronics, optics, and catalysis.

Graphical abstract: Glowing gold nanoparticle coating: restoring the lost property from bulk gold

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Article information


Submitted
11 Dec 2018
Accepted
04 Feb 2019
First published
06 Feb 2019

Nanoscale, 2019,11, 3786-3793
Article type
Communication

Glowing gold nanoparticle coating: restoring the lost property from bulk gold

Y. Kawabe, T. Ito, H. Yoshida and H. Moriwaki, Nanoscale, 2019, 11, 3786
DOI: 10.1039/C8NR10016K

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