Waste Fiber Powder Functionalized with Silver Nanoprism for Enhanced Raman Scattering Analysis

Bin Tang; Tian Zeng; Jun Liu; Ji Zhou; Yong Ye; Xungai Wang

doi:10.1186/s11671-017-2118-5

Waste Fiber Powder Functionalized with Silver Nanoprism for Enhanced Raman Scattering Analysis

Nanoscale Res Lett. 2017 Dec;12(1):341. doi: 10.1186/s11671-017-2118-5. Epub 2017 May 8.

Authors

Bin Tang^{1

2}, Tian Zeng³, Jun Liu³, Ji Zhou⁴, Yong Ye³, Xungai Wang^{5

6}

Affiliations

¹ National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Wuhan Textile University, Wuhan, 430073, China.
² Institute for Frontier Materials, Deakin University, Geelong, Australia.
³ Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Ministry of Education and College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China.
⁴ Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials and Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Ministry of Education and College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China. zhouji@hubu.edu.cn.
⁵ National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, Wuhan Textile University, Wuhan, 430073, China. xungai.wang@deakin.edu.au.
⁶ Institute for Frontier Materials, Deakin University, Geelong, Australia. xungai.wang@deakin.edu.au.

Abstract

Biomass disks based on fine powder produced from disposed wool fibers were prepared for surface-enhanced Raman scattering (SERS). The wool powders (WPs) were modified by silver nanoprisms via an assembly method and then pressed into disks using a hydraulic laboratory pellet press. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were used to characterize the WPs and disks before and after treatment with silver nanoparticles (AgNPs). The WPs retained porous structures after treatment with AgNPs. The silver nanoprisms on WPs were observed clearly and the localized surface plasmon resonance (LSPR) properties of silver nanoprisms led to blue color of wool powder (WP). The obtained WP disks with AgNPs were confirmed to enhance greatly the Raman signal of thiram. The SERS disks are low-cost and convenient to use, with high sensitivity. The characteristic SERS bands of 10^-8 M thiram can be identified from WP disks containing silver nanoparticles.

Keywords: Electrostatic assembly; SERS substrate; Silver nanoprisms; Trace analysis; Wool particles.