高等学校化学学报 ›› 2016, Vol. 37 ›› Issue (3): 468.doi: 10.7503/cjcu20150593

• 分析化学 • 上一篇    下一篇

微波辅助法制备氢氧化镍-石墨烯纳米复合结构及在葡萄糖检测中的应用

胡耀娟(), 黄梦丹, 陈昌云, 张长丽   

  1. 南京晓庄学院环境科学学院, 南京 211171
  • 收稿日期:2015-07-29 出版日期:2016-03-10 发布日期:2015-12-26
  • 基金资助:
    国家自然科学青年基金(批准号: 21401106)、 江苏省自然科学青年基金(批准号: BK20140090)、 江苏省新型动力电池重点实验室开放课题(批准号: Power-2013-1)、 江苏省大学生实践创新训练计划项目(批准号: 201411460046X)和南京晓庄学院重点项目(批准号: 2015NXY02)资助

Microwave-assisted Fabrication of Nickel Hydroxide-Graphene Nanostructures and Their Application in Electrochemical Detection of Glucose

HU Yaojuan*(), HUANG Mengdan, CHEN Changyun, ZHANG Changli   

  1. School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, China
  • Received:2015-07-29 Online:2016-03-10 Published:2015-12-26
  • Contact: HU Yaojuan E-mail:huyaojuan@njxzc.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21401106), the Natural Science Foundation of Jiangsu Province, China(No.BK20140090), the Open Project of Jiangsu Key Laboratory of New Power Batteries, China(No.Power-2013-1), the Jiangsu Provincial Undergraduate Innovation Training Programs, China(No.201411460046X) and the Key Research Project of Nanjing Xiaozhuang University, China(No.2015NXY02)

摘要:

采用微波辅助合成法制备了氢氧化镍-石墨烯[Ni(OH)2-graphene]纳米复合结构, 利用扫描电子显微镜(SEM)、 X射线光电子能谱(XPS)、 电子能谱(EDS)、 X射线衍射(XRD)及电化学阻抗谱(EIS)对其结构和性质进行了表征. 电化学实验结果表明, 与单独的Ni(OH)2相比, Ni(OH)2-graphene纳米复合结构对葡萄糖氧化反应表现出更高的电催化活性; 同时, 据此构建的无酶葡萄糖传感器具有良好的性能, 检测线性范围为10 μmol/L~7.5 mmol/L, 灵敏度为174.7 μA·cm-2·mmol·L-1, 检出限为2.0 μmol/L(S/N=3), 且该传感器具有良好的稳定性和选择性, 可用于实际样品检测.

关键词: 氢氧化镍-石墨烯复合结构, 微波辅助法, 无酶葡萄糖传感器

Abstract:

The nickel hydroxide-graphene[Ni(OH)2-graphene] nanostructures were fabricated by facile microwave method, and the structure and electrocatalytic activities of the synthesized nanostructures were characterized via scanning electron microscopy(SEM), X-ray photoelectron spectroscopy(XPS), X-ray powder diffraction(XRD), energy-dispersive spectroscopy(EDS), electrochemical impedance spectroscopy(EIS) and cyclic voltammetry. The results indicated that the Ni(OH)2-graphene nanotructures exhibited a higher electrocatalytic activity than the Ni(OH)2 nanoparticles. A glucose nonenzyme sensor was developed based on the Ni(OH)2-graphene nanotructures. The sensor exhibited a low detection limit of 2 μmol/L, a wide linear range from 0.01 to 7.5 mmol/L, and a high sensitivity of 174.7 μA·cm-2·mmol·L-1. In addition, the sensor exhibited excellent stability and selectivity for the glucose detection, and it could be used to analyze real samples.

Key words: Nickel hydroxide-graphene nanostructure, Microware-assisted method, Nonenzyme glucose sensor

中图分类号: 

TrendMD: