高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (10): 1888.doi: 10.7503/cjcu20150343

• 分析化学 • 上一篇    下一篇

基于碳纳米管@氧化石墨烯纳米带核壳结构复合物的甲萘胺电化学传感研究

朱刚兵1,2(), 裴元鹏1, 陈煜轩1, 易银辉1, 孙恒1, 吴向阳1   

  1. 1. 江苏大学环境与安全工程学院,江苏高校水处理技术与材料协同创新中心, 镇江 212013
    2. 湖南大学化学生物传感与计量学国家重点实验室, 长沙 410082
  • 收稿日期:2015-04-28 出版日期:2015-10-10 发布日期:2015-09-18
  • 作者简介:联系人简介: 朱刚兵, 男, 博士, 讲师, 主要从事电分析化学研究. E-mail:zhgb1030@ujs.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 21405062)、 湖南大学化学生物传感与计量学国家重点实验室开放基金(批准号: 2014012)、 中国博士后科学基金(批准号: 2014M551507)和江苏高校优势学科建设工程项目资助

Electrochemical Sensing of 1-Naphthylamine Based on Multiwalled Carbon Nanotubes@graphene Oxide Nanoribbons Core-shell Heterostructure

ZHU Gangbing1,2,*(), PEI Yuanpeng1, CHEN Yuxuan1, YI Yinhui1, SUN Heng1, WU Xiangyang1   

  1. 1. School of the Environment and Safety Engineering, Collaborative Innovation Center of Technology and Material of Water Treatment, Jiangsu University, Zhenjiang 212013, China
    2. State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
  • Received:2015-04-28 Online:2015-10-10 Published:2015-09-18
  • Contact: ZHU Gangbing E-mail:zhgb1030@ujs.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21405062), the Opening Project of State Key Laboratory of Chemo/Biosensing and Chemometrics of Hunan University, China(No.2014012), the Postdoctoral Science Foundation of China(No.2014M551507) and the Priority Academic Program Development of Jiangsu Higher Education Institutions, China

摘要:

通过部分氧化剥离多壁碳纳米管(MWCNTs), 制备了氧化石墨烯纳米带(GONRs)包覆的MWCNTs核壳结构复合物(MWCNTs@GONRs); 采用扫描电子显微镜、 透射电子显微镜、 傅里叶变换红外光谱仪、 热重分析仪和拉曼光谱仪等对MWCNTs@GONRs的形貌和结构进行了表征; 并将该复合物修饰玻碳电极(GCE)应用于甲萘胺(1-NA)的电化学传感研究. 由于MWCNTs和GONRs的协同作用(如MWCNTs可提供快速的电子传递通道, GONRs表面带负电含氧官能团提高其对目标分子1-NA的富集量), MWCNTs@GONRs/GCE可实现对1-NA的高灵敏检测, 线性范围为8.0~400.0 nmol/L, 检出限为2.5 nmol/L.

关键词: 石墨烯纳米带, 甲萘胺, 电化学传感, 碳纳米管, 核壳结构

Abstract:

A novel core-shell heterostructure with multiwalled carbon nanotubes(MWCNTs) as the core and graphene oxide nanoribbons as the shell(MWCNTs@GONRs) was prepared from longitudinal partially unzipping of MWCNTs and applied in electrochemical sensing of 1-naphthylamine(1-NA). Scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and thermogravimetric analysis were used to characterize the morphology and structures of MWCNTs@GONRs. Owing to the synergistic effects from MWCNTs and GONRs, the oxidation peak current of 1-NA at the MWCNTs@GONRs modified glassy carbon electrode(GCE) are much higher than those at the MWCNTs/GCE and bare GCE, and the MWCNTs@GONRs/GCE has a linear response range of 8.0—400.0 nmol/L with a detection limit of 2.5 nmol/L for 1-NA determination.

Key words: Graphene nanoribbons, 1-Naphthylamine, Electrochemical sensing, Carbon nanotubes, Core-shell heterostructure(Ed.: N,K)

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