Стаття
2022

Effect of Buffer Solution on the Detection of Cu(II) by Graphite Carbon Nitride Modified Electrode

Xianhua Li Xianhua Li , Huiqin Li Huiqin Li , Kuan Yang Kuan Yang , Qingping Wang Qingping Wang , Qingbo Yu Qingbo Yu
Російський електрохімічний журнал
https://doi.org/10.1134/S1023193522060064
Abstract / Full Text
Xianhua Li, Li, H., Yang, K. et al. Effect of Buffer Solution on the Detection of Cu(II) by Graphite Carbon Nitride Modified Electrode. Russ J Electrochem 58, 444–450 (2022). https://doi.org/10.1134/S1023193522060064

The importance of buffer solution for voltammetric detection of heavy metal ions has been repeatedly introduced, however the influence mechanism has not been further studied. Herein, the effect of different buffer solutions on the determination of Cu(II) by graphite carbon nitride modified electrode (W–g-C3N4/ITO) was studied for the first time by X-ray photoelectron spectroscopy. The chemisorption between the buffer solution and W–g-C3N4 and the complexation of different buffer molecules on Cu(II) together affect the detection of copper ions by W–g-C3N4/ITO.

Author information

  • School of Artificial Intelligence, Anhui University of Science and Technology, 232001, Huainan, China

    Xianhua Li

  • Department of Materials Science and Engineering, Anhui University of Science and Technology, 232001, Huainan, China

    Huiqin Li, Kuan Yang, Qingping Wang & Qingbo Yu

References
  1. Kemper, T. and Sommer, S., Estimate of heavy metal contamination in soils after a mining accident using reflectance spectroscopy, Environ. Sci. Technol., 2002, vol. 36, p. 2742.
  2. Tu, C., Shao, Y., Gan, N., Xu,Q., and Guo, Z.J., Oxidative DNA strand scission induced by a trinuclear Copper(II) complex, Inorg. Chem., 2004, vol. 43, p. 4761.
  3. Wei, Y., Gao, C., Meng, F.L., Li, H.H., Wang, L., Liu, J.H., and Huang X.J., SnO2/reduced graphene oxide nanocomposite for the simultaneous electrochemical detection of Cadmium(II), Lead(II), Copper(II), and Mercury(II): an interesting favorable mutual interference, J. Phys. Chem. C, 2011, vol. 116, p. 1034.
  4. Zhang, P.J., Xu, G.Q., Lv, J., Cui, J.W., Zheng, Z.X., and Wu, Y.C., Fabrication of Au nanowire array for anodic stripping voltammetry determination of trace Pb2+ ions, J. Electroanal. Chem., 2012, vol. 685, p. 91.
  5. Saumya, J., Vijay, D.B., Andreas, M., Markus, B., and Paolo, L., Regenerative, highly-sensitive, non-enzymatic dopamine sensor and impact of different buffer systems in dopamine sensing, Biosensors, 2018, vol. 8, p. 9.
  6. Lv, H.Y., Teng, Z.Y., Wang, C.Y., and Wang, G.X., Ultra-high sensitive voltammetric sensor modified by largely oxygenous functionalized ultrathin carbon nitride nanosheets for detection of Cu(II), Sens. Actuators B Chem., 2017, vol. 242, p. 897.
  7. Li, H.J., Sun, B.W., Sui, L., Qian, D.J., and Chen, M., Preparation of water-dispersible porous g-C3N4 with improved photocatalytic activity by chemical oxidation, Phys. Chem. Chem. Phys., 2015, vol. 17, p. 3309.
  8. Sadhukhan, M. and Barman, S., Bottom-up fabrication of two-dimensional carbon nitride and highly sensitive electrochemical sensors for mercuric ions, J. Mater. Chem. A, 2013, vol. 1, p. 2752.
  9. Ramachandran, A., Panda, S., and Yesodha, S.K., Physiological level and selective electrochemical sensing of dopamine by a solution processable graphene and its enhanced sensing property in general, Sens. Actuators B Chem., 2018, vol. 256, p. 488.
  10. Lopez, G.P., Castner, D.G., and Ratner, B.D., XPS O1s binding energies for polymers containing hydroxyl, ether, ketone and ester groups, Surf. Interface Anal., 1991, vol. 17, p. 267.
  11. Dupin, J.C., Gonbeau, D., Vinatier, P., and Levasseur, A., Systematic XPS studies of metal oxides, hydroxides and peroxides, Phys. Chem. Chem. Phys., 2000, vol. 2, p. 1319.
  12. Lo, P.H., Tsai, W.T., Lee, J.T., and Hung, M.P., The electrochemical behavior of electroless plated Ni−P alloys in concentrated NaOH solution, J. Electrochem. Soc., 1995, vol. 142, p. 91.
  13. Kabra, K., Chaudhary, R., and Sawhney, R. L., Solar photocatalytic removal of Cu(II), Ni(II), Zn(II) and Pb(II): speciation modeling of metal–citric acid complexes, J. Hazrad. Mater., 2008, vol. 155, p. 424.
  14. Montes, L. and Lagowski, J.J., Electrochemical behavior of sodium anions, J. Phys. Chem. B, 2003, vol. 107, p. 10665.