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Synthesis of PAN/PANI/rGO/Au fibers and their catalytic, in situ SERS monitoring performance
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The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    Abstract:

    Supported noble metal nanocatalyst is an effective way to improve the utilization rate of precious metal catalyst for the economic cost reduction, and is also a new potential surfacing enhanced Raman spectroscopy (SERS) substrate material. In this paper, reduced graphene oxide (rGO) reinforced polyacrylonitrile/polyaniline fibers (PAN/PANI/rGO) were first fabricated by electrospinning technology. Au nanoparticles were then grown on the surface of as-prepared PAN/PANI/rGO fibers by in-situ reduction method. The structure and morphology of the final formed PAN/PANI/rGO/Au fibers were characterized by SEM, FTIR, XRD, XPS, Raman and UV-Vis spectroscopy. The catalytic reduction of 4-nitrophenol (4-NP) in the presence of NaBH4 in water was used to evaluate the catalytic and in-situ SERS detection properties of the synthesized PAN/PANI/rGO/Au fibers. Compared with PAN/PANI/ Au and PAN/PANI/GO/Au fibers, the results show that the prepared PAN/PANI/rGO/Au fibers has the best catalytic activity, in-situ SERS detection ability and cycle performance.

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[chenfenghua, shixiangdong, liangweiwei, chenqingtao, jiangliying, zhangyonghui. Synthesis of PAN/PANI/rGO/Au fibers and their catalytic, in situ SERS monitoring performance[J]. Rare Metal Materials and Engineering,2021,50(8):2957~2966.]
DOI:10.12442/j. issn.1002-185X.20200691

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History
  • Received:September 10,2020
  • Revised:November 08,2020
  • Adopted:November 26,2020
  • Online: September 07,2021
  • Published: August 31,2021