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陈凤华,石向东,梁娓娓,陈庆涛,姜利英,张永辉.PAN/PANI/rGO/Au复合纤维的制备及其催化、原位SERS监测性能研究[J].稀有金属材料与工程(英文),2021,50(8):2957~2966.[chenfenghua,shixiangdong,liangweiwei,chenqingtao,jiangliying and 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.]
Synthesis of PAN/PANI/rGO/Au fibers and their catalytic, in situ SERS monitoring performance
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Received:September 10, 2020  
Key words: Graphene  Polyaniline  Au nanoparticles  Surface enhanced Raman spectroscopy (SERS)
Foundation item:国家自然科学基金资助(项目号21671179和21904120); 河南省科技厅科技攻关计划项目(202102210045)
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chenfenghua,shixiangdong,liangweiwei,chenqingtao,jiangliying and zhangyonghui  
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      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.