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Electrochemical synthesis of mesoporous silica/graphene nanocomposite and its application in enhanced strategy for sensing of tannins

文献类型: 外文期刊

作者: Wang, Yanli 1 ; Liang, Jing 1 ; Yan, Feiyan 1 ; Li, Huiling 1 ; Xie, Liping 1 ; Tang, Li 1 ; Ning, Dejiao 1 ; Jiang, Cuiwen 1 ; Li, Tao 1 ; Huang, Xiaochuan 1 ; Huang, Ke-Jing 2 ; Ya, Yu 1 ;

作者机构: 1.Guangxi Acad Agr Sci, Inst Agr Prod Qual Safety & Testing Technol, Nanning 530007, Peoples R China

2.Guangxi Minzu Univ, Sch Chem & Chem Engn, Nanning 530008, Peoples R China

关键词: Graphene/mesoporous silica nanocomposites; One-step electrochemical synthesis; Tannins; Food analysis

期刊名称:JOURNAL OF FOOD COMPOSITION AND ANALYSIS ( 影响因子:4.6; 五年影响因子:4.6 )

ISSN: 0889-1575

年卷期: 2025 年 140 卷

页码:

收录情况: SCI

摘要: In the present study, a novel mesoporous silica/nitrogen-doped graphene composite modified electrode (MS/ NGR/GCE) is prepared using an in-situ electrochemical method. The large specific surface area, excellent loading and electron transfer capabilities of the mesoporous silica/nitrogen-doped graphene composite make the modified electrode favored for electrochemical sensing. The sensing properties of different electrodes towards tannins are investigated, and the results show that MS/NGR/GCE exhibits much better sensing performance than individual graphene or mesoporous silica modified electrodes. Under optimal conditions, the linear range of MS/ NGR/GCE for determination of tannins is 0.10-5.0 mu mol/L and 5.0-80 mu mol/L, respectively, with a detection limit of 0.050 mu mol/L (S/N = 3). These results demonstrate that this study has opened up a new pathway for constructing high-performance nanocomposite electrochemical sensors.

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