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Materials 2017, 10(3), 295;

In Situ Synthesis of Gold Nanoparticles on Wool Powder and Their Catalytic Application

1,3,* , 2
2,* , 2
National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Wuhan Textile University, Wuhan 430073, China
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Ministry of Education & College of Chemistry & Chemical Engineering, Hubei University, Wuhan 430062, China
Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
Authors to whom correspondence should be addressed.
Academic Editor: Mady Elbahri
Received: 5 January 2017 / Revised: 5 March 2017 / Accepted: 9 March 2017 / Published: 15 March 2017
(This article belongs to the Special Issue Green Nanotechnology)
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Gold nanoparticles (AuNPs) were synthesized in situ on wool powder (WP) under heating conditions. Wool powder not only reduced Au ions to AuNPs, but also provided a support for as-synthesized AuNPs. WPs were treated under different concentrations of Au ions, and corresponding optical features and morphologies of the treated WPs were investigated by UV-VIS diffuse reflectance absorption spectroscopy and scanning electron microscopy (SEM). X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscope (TEM) were also employed to characterize the WP treated with AuNPs. The results demonstrate that AuNPs were produced in the presence of WP and distributed over the wool particles. The porous structure led to the synthesis of AuNPs in the internal parts of WP. Acid conditions and high temperature facilitated the synthesis of AuNPs by WP in aqueous solution. The reducibility of wool was improved after being converted to powder from fibers, due to exposure of more active groups. Moreover, the obtained AuNP-WP complexes showed significant catalytic activity to accelerate the reduction reaction of 4-nitrophenol (4-NP) by sodium borohydride (NaBH4). View Full-Text
Keywords: gold nanoparticles; wool powder; biomass complex; in situ synthesis; catalysis gold nanoparticles; wool powder; biomass complex; in situ synthesis; catalysis

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Tang, B.; Zhou, X.; Zeng, T.; Lin, X.; Zhou, J.; Ye, Y.; Wang, X. In Situ Synthesis of Gold Nanoparticles on Wool Powder and Their Catalytic Application. Materials 2017, 10, 295.

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