Recyclable SERS substrates based on Fe2O3–Ag hybrid hollow microspheres with crumpled surfaces

Xuexiang Weng; Zhiling Feng; Yina Guo; Jiu-Ju Feng; Sarah P. Hudson; Jufang Zheng; Yongming Ruan; Fathima Laffir; Isabel Pita

doi:10.1039/C6NJ00473C

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Recyclable SERS substrates based on Fe₂O₃–Ag hybrid hollow microspheres with crumpled surfaces†

Xuexiang Weng,*^ab Zhiling Feng,^a Yina Guo,^b Jiu-Ju Feng,^a Sarah P. Hudson,^b Jufang Zheng,^c Yongming Ruan,*^a Fathima Laffir^b and Isabel Pita^b

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* Corresponding authors

^a College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, P. R. China
E-mail: xuexian@zjnu.cn, ruanym@zjnu.cn
Tel: +86-579-82282269

^b Chemical and Environmental Science Department, Materials and Surface Science Institute, University of Limerick, Castletroy, Ireland

^c Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, P. R. China

Abstract

Fe₂O₃–Ag hollow microspheres (FAHMs) with crumpled surfaces were prepared by solvothermal treatment with post-calcination. The as-prepared hybrid microspheres were first used as an active substrate for surface-enhanced Raman scattering (SERS) of a small molecule, 4-aminobenzenethiol (4-ABT), and an enhancement factor of 9.6 × 10⁴ was achieved. In addition, the FAHMs provided photocatalytic activity to the absorbed 4-ABT after exposure to visible light for 5 min and can be recycled five times without a decrease in the SERS performance. Furthermore, the prepared FAHMs are also a possible substrate for macromolecule ricin and the recyclability can be achieved by water activation.

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Article information

DOI: https://doi.org/10.1039/C6NJ00473C
Article type: Paper
Submitted: 11 Feb 2016
Accepted: 29 Mar 2016
First published: 30 Mar 2016

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New J. Chem., 2016,40, 5238-5244

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Recyclable SERS substrates based on Fe₂O₃–Ag hybrid hollow microspheres with crumpled surfaces

X. Weng, Z. Feng, Y. Guo, J. Feng, S. P. Hudson, J. Zheng, Y. Ruan, F. Laffir and I. Pita, New J. Chem., 2016, 40, 5238 DOI: 10.1039/C6NJ00473C

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