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        N,P共摻雜蓮藕生物碳材料用于蘆丁的電化學傳感
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        湖北民族大學 化學與環境工程學院

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        TQ15

        基金項目:

        國家自然科學基金(22066010);湖北民族大學高水平科研成果校內培育項目(PY22004);湖北民族大學碩士研究生科研創新資助項目(MYK2022030)


        N,P co-doped lotus root biocarbon material for electrochemical sensing of rutin
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        School of Chemical and Environmental Engineering,Hubei Minzu University

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          摘要:

          生物質衍生的多孔碳材料具有較大的比表面積和良好的孔結構等,但其表面活性位點較少,使其電化學傳感應用受到限制。為了提高其電化學活性,以蓮藕為生物質原料、聚磷酸銨(APP)為氮磷摻雜劑制備了一種N、P共摻雜生物質熱解碳材料,采用SEM、TGA、XRD、XPS和FTIP對材料的結構、形貌和元素組成進行了表征,并以該碳材料修飾電極,構建了一種檢測蘆丁的電化學傳感器。采用EIS、CV和DPV研究了傳感器的電化學性能及蘆丁在不同電極上的電化學行為。結果表明,蓮藕與APP質量比為1:1、熱解溫度為800 ℃條件下所制備碳材料修飾的電極對蘆丁的檢測效果最好。在最優化條件下,蘆丁濃度與該修飾電極的響應電流呈線性關系,檢出范圍為0.01~10.0 μmol/L,檢出限為(1.19±0.04)×10-8 mol/L(信噪比S/N=3)。此外,該修飾電極對雙黃連口服液和健康人尿樣中蘆丁的測定效果良好。

          Abstract:

          Biomass derived porous carbon materials have large specific surface area, good pore structure and excellent conductivity, but there are few surface active sites, which limits its application in electrochemical sensing. In order to improve its electrochemical activity, an N,P co-doped biomass pyrolytic carbon material was prepared using lotus root as biomass feedstock and ammonium polyphosphate (APP) as nitrogen and phosphorus dopant. The material was characterized in terms of structure, morphology and elemental composition using SEM, TGA, XRD, XPS and FTIP. Using this material as electrode modification material, an electrochemical sensor for detecting rutin was constructed. The electrochemical performance of the sensor and the electrochemical behavior of Ru on different electrodes were studied by EIS, CV and DPV. The results show that the modified electrode prepared by the material with the mass ratio of lotus root to APP of 1:1 and pyrolysis temperature of 800℃ has the best detection effect on RU. Under optimal conditions, the RU concentration has a linear relationship with the response current of the modified electrode, and the detection range is 0.01~10.0 μmol/L, the minimum detection limit is (1.19±0.04)×10-8 mol/L(S/N=3)。In addition, the modified electrode has a good effect on the determination of RU in Shuanghuanglian oral liquid and healthy human urine samples.

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        高儀,劉耀鵬,魯猷欒,鄭寅,黃文勝. N, P共摻雜蓮藕生物碳材料用于蘆丁的電化學傳感[J].精細化工,2023,40(7):

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        • 收稿日期:2022-10-17
        • 最后修改日期:2022-12-22
        • 錄用日期:2022-12-26
        • 在線發布日期: 2023-06-12
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