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,2021,50(8):2957~2966.[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.]
PAN/PANI/rGO/Au复合纤维的制备及其催化、原位SERS监测性能研究
投稿时间:2020-09-10  修订日期:2020-11-08
中文关键词:  石墨烯  聚苯胺  金纳米颗粒  表面增强拉曼光谱(SERS)
基金项目: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)
中文摘要:
      负载型贵金属纳米催化剂是提高贵金属催化剂利用率,降低经济成本的一种有效途径,也是一种新型的有潜力的表面增强拉曼光谱(SERS)的基底材料。本文首先利用静电纺丝技术构建了还原的氧化石墨烯(rGO)增强的聚丙烯腈/聚苯胺复合纤维(PAN/PANI/rGO),然后采用原位还原的方法在其表面生长金纳米颗粒得到了PAN/PANI/rGO/Au复合纤维,通过SEM, FTIR, XRD, XPS, Raman和UV-Vis光谱等手段对复合纤维进行了结构和形貌表征,最后以NaBH4还原四硝基苯酚(4-NP)为模型,研究了复合纤维的催化性能和原位SERS检测该催化还原反应的过程,并将其与同种方法制备的PAN/PANI/GO/Au和PAN/PANI/Au复合纤维进行比较。结果表明,rGO增强的PAN/PANI/rGO/Au复合纤维具有优于PAN/PANI/GO/Au和PAN/PANI/Au复合纤维的催化活性、原位增强拉曼检测的能力和循环性能。
Synthesis of PAN/PANI/rGO/Au fibers and their catalytic, in situ SERS monitoring performance
英文关键词:Graphene  Polyaniline  Au nanoparticles  Surface enhanced Raman spectroscopy (SERS)
英文摘要:
      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.
作者单位E-mail
陈凤华 郑州轻工业大学科学校区材料与化学工程学院 phenix@zzuli.edu.cn 
石向东 郑州轻工业大学材料与化学工程学院 2437168305@qq.com 
梁娓娓 郑州轻工业大学材料与化学工程学院  
陈庆涛 郑州轻工业大学材料与化学工程学院  
姜利英 郑州轻工业大学电气信息工程学院  
张永辉 郑州轻工业大学材料与化学工程学院  
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