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摘要
将水溶性杯[6]磺酸盐(SC6)自主装到石墨烯(GN)表面,通过红外光谱仪、透射电子显微镜、扫描电子显微镜等表征证明,制备得到了水分散性GN-SC6复合材料。将复合材料修饰到电极表面,对多巴胺(DA)进行电化学检测,结果表明,GN-SC6的两种成分能够发挥各自的优良性能,协同地促进DA的电化学反应,表现出优良的电分析性能。此外,GN-SC6对DA的电化学检测具有较宽的线性范围(1.0×10-7～2.0×10-5mol/L),也具有较低的检测限(8×10-8mol/L)。
Abstract
The water-soluble p-sulfonated calix[6]arene sodium (SC6) was loaded onto the surface of graphene (GN),and the water-dispersed GN-SC6 composite was prepared and confirmed by infrared,transmission electron microscopy,scanning electron microscopy and other characterization methods.The composite material was modified to the electrode surface and the dopamine was detected by electrochemical method.The results showed that GN-SC6 exhibited both the large surface area and electrical conductivity of graphene and the supramolecular recognition and enrichment capability of SC6,which synergically promoted the electrochemical reaction of dopamine and showed excellent electrical analysis performance.In addition,the electrochemical detection of dopamine by GN-SC6 had a wide linear range of 1.0×10-7～2.0×10-5mol/L,and a low detection limit of 8×10-8mol/L.
关键词
石墨烯
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杯[6]磺酸盐
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复合材料
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多巴胺
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电化学检测
Key words
graphene
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calix[6]arenesulfonates
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nanocomposites
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dopamine
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electrochemical detection
杯[6]磺酸盐修饰的石墨烯复合材料的制备及其电化学检测多巴胺的应用[J].
化工新型材料, 2026, 54(3): 237-240 DOI:10.19817/j.cnki.issn1006-3536.2026.03.018
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基金资助
国家自然科学基金(21773203)
