• 文献标题:   Graphitic carbon nitride nanosheets doped graphene oxide for electrochemical simultaneous determination of ascorbic acid, dopamine and uric acid
  • 文献类型:   Article
  • 作  者:   ZHANG HQ, HUANG QT, HUANG YH, LI FM, ZHANG WX, WEI C, CHEN JH, DAI PW, HUANG LZ, HUANG ZY, KANG LP, HU SR, HAO AY
  • 作者关键词:   graphitic carbon nitride nanosheet, graphene oxide, ascorbic acid, dopamine, uric acid
  • 出版物名称:   ELECTROCHIMICA ACTA
  • ISSN:   0013-4686 EI 1873-3859
  • 通讯作者地址:   Minnan Normal Univ
  • 被引频次:   56
  • DOI:   10.1016/j.electacta.2014.07.094
  • 出版年:   2014

▎ 摘  要

Graphitic carbon nitride nanosheets with a graphite-like structure have strong covalent bonds between carbon and nitride atoms, and nitrogen atoms in the carbon architecture can accelerate the electron transfer and enhance electrical properties effectually. The graphitic carbon nitride nanosheets-graphene oxide composite was synthesized. And the electrochemical performance of the composite was investigated by cyclic voltammetry and differential pulse voltammetry ulteriorly. Due to the synergistic effects of layer-by-layer structures by pi-pi stacking or charge-transfer interactions, graphitic carbon nitride nanosheets-graphene oxide composite can improved conductivity, electro-catalytic and selective oxidation performance. The proposed graphitic carbon nitride nanosheets-graphene oxide composite modified electrode was employed for simultaneous determination of ascorbic acid, dopamine and uric acid in their mixture solution, it exhibited distinguished sensitivity, wide linear range and low detection limit. Moreover, the modified electrode was applied to detect urine and dopamine injection sample, and then the samples were spiked with certain concentration of three substances with satisfactory recovery results. (C) 2014 Elsevier Ltd. All rights reserved.