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A non-enzymatic photoelectrochemical glucose sensor based on BiVO4 electrode under visible light

Journal Article


Abstract


  • A non-enzymatic photoelectrochemical (PEC) glucose sensor based on nanoporous bismuth vanadate (BiVO 4 ) electrode is fabricated on fluorine doped tin oxide by electrochemical deposition. The photogenerated holes of BiVO 4 show a strong oxidizing ability, with adsorption of glucose on the surface of BiVO 4 , agreeing well with the classical Langmuir adsorption model. Under visible light irradiation, the glucose molecules adsorbed on the BiVO 4 electrode surface can be oxidized by the photogenerated holes, which results in increased photocurrent. The fabricated BiVO 4 non-enzymatic photoelectrochemical sensor shows outstanding catalytic activity, favourable selectivity, good reproducibility, and long-term stability for glucose detection under optimized conditions. The linear range was 0–5 mM (correlation coefficient, R = 0.997) with a detection limit of 0.13 μmol L −1 (signal-to-noise = 3). In addition, the proposed PEC sensor was successfully applied to detect glucose in human serum samples. Our work provides a new strategy for the non-enzymatic detection of glucose.

UOW Authors


  •   Wang, Shan (external author)
  •   Li, Shaoping (external author)
  •   Wang, Wenwen (external author)
  •   Zhao, Mengting (external author)
  •   Liu, Jiaofeng (external author)
  •   Feng, Haifeng (external author)
  •   Chen, Yiming (external author)
  •   Gu, Qi (external author)
  •   Du, Yi
  •   Hao, Weichang (external author)

Publication Date


  • 2019

Citation


  • Wang, S., Li, S., Wang, W., Zhao, M., Liu, J., Feng, H., Chen, Y., Gu, Q., Du, Y. & Hao, W. (2019). A non-enzymatic photoelectrochemical glucose sensor based on BiVO4 electrode under visible light. Sensors and Actuators, B: Chemical, 291 34-41.

Scopus Eid


  • 2-s2.0-85064207154

Number Of Pages


  • 7

Start Page


  • 34

End Page


  • 41

Volume


  • 291

Place Of Publication


  • Netherlands

Abstract


  • A non-enzymatic photoelectrochemical (PEC) glucose sensor based on nanoporous bismuth vanadate (BiVO 4 ) electrode is fabricated on fluorine doped tin oxide by electrochemical deposition. The photogenerated holes of BiVO 4 show a strong oxidizing ability, with adsorption of glucose on the surface of BiVO 4 , agreeing well with the classical Langmuir adsorption model. Under visible light irradiation, the glucose molecules adsorbed on the BiVO 4 electrode surface can be oxidized by the photogenerated holes, which results in increased photocurrent. The fabricated BiVO 4 non-enzymatic photoelectrochemical sensor shows outstanding catalytic activity, favourable selectivity, good reproducibility, and long-term stability for glucose detection under optimized conditions. The linear range was 0–5 mM (correlation coefficient, R = 0.997) with a detection limit of 0.13 μmol L −1 (signal-to-noise = 3). In addition, the proposed PEC sensor was successfully applied to detect glucose in human serum samples. Our work provides a new strategy for the non-enzymatic detection of glucose.

UOW Authors


  •   Wang, Shan (external author)
  •   Li, Shaoping (external author)
  •   Wang, Wenwen (external author)
  •   Zhao, Mengting (external author)
  •   Liu, Jiaofeng (external author)
  •   Feng, Haifeng (external author)
  •   Chen, Yiming (external author)
  •   Gu, Qi (external author)
  •   Du, Yi
  •   Hao, Weichang (external author)

Publication Date


  • 2019

Citation


  • Wang, S., Li, S., Wang, W., Zhao, M., Liu, J., Feng, H., Chen, Y., Gu, Q., Du, Y. & Hao, W. (2019). A non-enzymatic photoelectrochemical glucose sensor based on BiVO4 electrode under visible light. Sensors and Actuators, B: Chemical, 291 34-41.

Scopus Eid


  • 2-s2.0-85064207154

Number Of Pages


  • 7

Start Page


  • 34

End Page


  • 41

Volume


  • 291

Place Of Publication


  • Netherlands