应用化学 ›› 2022, Vol. 39 ›› Issue (12): 1891-1902.DOI: 10.19894/j.issn.1000-0518.220099

• 研究论文 • 上一篇    下一篇

Cu(Ⅱ)Co(Ⅱ)双金属碳纳米片用于无酶葡萄糖传感器

黄小梅1,2,3(), 邓祥1,2, 邢浪漫1, 陈伟1, 孙莉1, 朱晓玉1   

  1. 1.四川文理学院化学化工学院,达州 635000
    2.四川省教育厅特色植物开发利用研究重点实验室,达州 635000
    3.四川省高等学校绿色化学重点实验室,自贡 643000
  • 收稿日期:2022-04-01 接受日期:2022-08-31 出版日期:2022-12-01 发布日期:2022-12-13
  • 通讯作者: 黄小梅
  • 基金资助:
    四川省科技厅应用基础研究项目(2019YJ0307);特色植物开发研究四川省高校重点实验室项目(TSZW2005);绿色催化四川省高校重点实验室开放基金(LYJ1802);达州市科技局应用基础研究项目(18YYJC0002);国家级大学创新创业训练计划项目(202110644011);四川文理学院2021年度大学生科学研究项目(X2021Z021)

Study of Electrochemical Non-enzyme Glucose Sensor Based on Cu(Ⅱ)Co(Ⅱ) Bimetallic Carbon Nanosheets

Xiao-Mei HUANG1,2,3(), Xiang DENG1,2, Lang-Man XING1, Wei CHEN1, Li SUN1, Xiao-Yu ZHU1   

  1. 1.Department of Chemistry and Chemical Engineering,Sichuan University of Arts and Science,Dazhou 635000,China
    2.Key Laboratory of Exploitation and Study of Distinctive Plants in Education Department of Sichuan Province,Dazhou 635000,China
    3.Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education,Zigong 643000,China
  • Received:2022-04-01 Accepted:2022-08-31 Published:2022-12-01 Online:2022-12-13
  • Contact: Xiao-Mei HUANG
  • About author:huangxm917@163.com
  • Supported by:
    the Scientific Research Fund of the Sichuan Provincial Science and Technology Department(2019YJ0307);the Key Laboratory of Exploitation and Study of Distinctive Plants in Education Department of Sichuan Province(TSZW2005);the Opening Project of Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education(LYJ1802);Dazhou Municipal Science Project of Technology Bureau Application Foundation(18YYJC0002);the National University Innovation and Entrepreneurship Training Program(202110644011);the Scientific Research Program for College Students of Sichuan University of Arts and Sciences in 2021(X2021Z021)

摘要:

采用室温、水溶剂一步共混工艺合成了铜钴双金属有机框架纳米纤维(CuCo-MOF),以CuCo-MOF为前驱体,在空气中高温煅烧,获得均匀负载纳米尺寸氧化铜和氧化钴的碳纳米片(Cu(Ⅱ)Co(Ⅱ)@C)。将Cu(Ⅱ)Co(Ⅱ)@C修饰于玻碳电极,在碱性溶液中直接催化葡萄糖,实现了无酶传感器对葡萄糖的超灵敏检测。由于CuO和CoO均匀牢固地镶嵌在碳基纳米片上,防止了催化剂的团聚,从而极大地增大其催化比表面积,增加了催化活性位点,增强了稳定性,同时因碳纳米片中铜钴双金属的协同作用,使无酶葡萄糖传感器具有优异的导电性、好的催化性能和较高的灵敏度。该无酶传感器对葡萄糖的检测范围为0.03 μmol/L~13.60 mmol/L,检测限为0.01 μmol/L(S/N=3),灵敏度为10.56 mA·L/(cm2·mmol)。此外,该无酶传感器还具有制备方法简单和抗干扰性好等优点。

关键词: 金属有机框架材料, Cu(Ⅱ)Co(Ⅱ)双金属碳基纳米片, 无酶葡萄糖传感器, 协同作用

Abstract:

CuCo-MOF nanofibers are synthesized by one-step solvent blending process at room temperature. Then CuCo-MOF nanofibers are used as the precursors, carbon nanosheets (Cu(Ⅱ)Co(Ⅱ)@C) uniformly loaded with nano-sized copper oxide and cobalt oxide are obtained by calcination at high temperature in air. Cu(Ⅱ)Co(Ⅱ)@C is modified on the glassy carbon electrode to directly catalyze glucose in alkaline solution. Because CuO and CoO are uniformly and firmly embedded on the carbon nanosheets, the agglomeration of catalyst is prevented, which greatly improves the specific surface area, and increases the catalytic active site. Meanwhile, due to the synergistic effect of copper and cobalt bimetals in the carbon nanosheet material, the enzyme free glucose sensor has excellent electrical conductivity and excellent catalytic performance. The detection range of the non-enzymatic electrochemical glucose sensors for glucose is 0.03 μmol/L~13.6 mmol/L, the detection limit is 0.01 μmol/L (S/N=3), and the sensitivity is 10.56 mA·L/(cm2·mmol). In addition, the non-enzyme sensor also has good anti-interference and high stability.

Key words: Metal organic frameworks, Cu(Ⅱ)CO(Ⅱ) bimetallic carbon based nanosheets, Non-enzymatic glucose sensors, Synergistic effect

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