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Citation: XU Bing-Jie, XI Jia-Jia, FENG Ying-Ying, ZHAO Fa-Qiong, ZENG Bai-Zhao. Molybdenum Disulfide/Porous Graphene Composite-based Electrochemical Sensor for Detection of Luteolin[J]. Chinese Journal of Analytical Chemistry, ;2018, 46(12): 1931-1936. doi: 10.11895/j.issn.0253-3820.181284 shu

Molybdenum Disulfide/Porous Graphene Composite-based Electrochemical Sensor for Detection of Luteolin

Key Laboratory of Analytical Chemistry for Biology and Medicine(Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China

Received Date: 27 April 2018
Revised Date: 30 September 2018

Fund Project: This work was supported by the National Natural Science Foundation of China (Nos.21775112, 21277105).

Molybdenum disulfide/porous graphene (MoS₂/pGN) composite was synthesized by a simple hydrothermal method. The pGN was not easy to aggregate and could provide large surface for MoS₂ growing. Therefore, the stacking of MoS₂ nanosheets was effectively restrained and showed few-layer nanosheet structure, showing outstanding electrochemical feature. In addition, the pGN could shorten the diffusion pathways and facilitate the electron transfer of target analyte. Hence, the composite modified electrode presented sensitive response to luteolin. The linear determination range was 0.01-5.0 μmol/L and the detection limit was 6.0 nmol/L (S/N=3). The sensor could be applied to the detection of luteolin in oral solution and peanut hulls, with recoveries of 91.8%-102.4% and relative standard deviations (RSDs) of below 5.6%.
- Molybdenum disulfide,
- Porous graphene,
- Luteolin,
- Electrochemical sensor
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