Citation: TANG Xiao-Qiang, CHEN Yu-Yun, LUO Yan-Ni, WEI Fu-Cun, DU Fang-Kai, TAN Xue-Cai. A Novel Glutathione Photoelectrochemical Sensor Based on Titanium Dioxide Nanorods@ZnIn₂S₄ Nanosheets Nanocomposites[J]. Chinese Journal of Analytical Chemistry, ;2019, 47(8): 1188-1194. doi: 10.19756/j.issn.0253-3820.191231 shu

A Novel Glutathione Photoelectrochemical Sensor Based on Titanium Dioxide Nanorods@ZnIn₂S₄ Nanosheets Nanocomposites

School of Chemistry and Chemical and Engineering, Guangxi University for Nationalities, Key Laboratory of Guangxi Colleges and Universities for Food Safety and Pharmaceutical Analytical Chemistry, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Nanning 53008, China

Received Date: 24 April 2019
Revised Date: 31 May 2019

Fund Project: This work was supported by the National Natural Science Foundation of China (No. 21365004).

A binder-free efficient sulphur indium zinc nanosheets coating titanium dioxide nanorods on conductive fluorine-doped tin oxide substrate electrode (TiO₂ NRs@ZnIn₂S₄ NSs/FTO) was developed by simple two-steps hydrothermal method. The morphology, structure and element composition of the as-prepared materials was characterized by scanning electron microscopy, X-ray diffraction, X-ray energy-dispersive spectroscopy and UV-visible diffuse reflectance spectroscopy, respectively. A novel glutathione (GSH) photoelectrochemical (PEC) sensor was fabricated based on TiO₂ NRs@ZnIn₂S₄ NSs/FTO modified electrode. The properties of the PEC sensor were studied via current-time curve (i-t) and electrochemical impedance spectroscopy techniques. Under the optimal conditions, GSH concentration in the range of 1-130 μmol/L had a good linear relationship with photocurrent (R=0.9919), and the detection limit was 0.1 μmol/L (S/N=3). The fabricated PEC sensor exhibited good selectivity, high stability, and high reproducibility. Moreover, This PEC sensor was successfully applied to detection of GSH in glutathione tablets and reduced GSH for injection samples with favorable recoveries of 99%-110%.
- Titanium dioxide nanorods,
- Sulfur indium zinc nanosheets,
- Photoelectrochemical sensor,
- Glutathione
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A Novel Glutathione Photoelectrochemical Sensor Based on Titanium Dioxide Nanorods@ZnIn2S4 Nanosheets Nanocomposites

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通讯作者: 陈斌, bchen63@163.com

A Novel Glutathione Photoelectrochemical Sensor Based on Titanium Dioxide Nanorods@ZnIn₂S₄ Nanosheets Nanocomposites