新型偶氮苯衍生物/铌酸钾纳米复合材料的制备及其在电化学传感器中的应用

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Functional Materials Letters Pub Date : 2023-10-19 DOI:10.1142/s1793604723510256

Yicheng Zhou, Li Dong, Tongtong Cao, Haoran Wang, Jiazheng Zhang, Xiaobo Zhang, Lin Liu, Zhiwei Tong

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引用次数: 0

摘要

将客体分子反式-[2-(2,2,3,3,4,4,4,4 -七氟丁基氨基)乙基]-2-[4-(4-己苯并偶氮)-苯氧基]乙基二甲基铵(简称c3f7 -偶氮[公式:见文]Br[公式:见文])插入到采用主客体交换法层合的k4nb 6o[公式:见文]中，合成了具有优异电化学性能的c3f7 -偶氮[公式:见文]/Nb 6o[公式:见文]a型纳米复合材料。采用x射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、傅里叶变换红外光谱仪(FTIR)和能谱仪(EDS)对c3f7 -偶氮纳米复合材料[公式:见文]/Nb 6o[公式:见文]的结构和形貌进行了表征。通过形貌分析和片层间距计算，推测c3f7 -偶氮[公式:见文]离子在[Nb 6o[公式:见文]][公式:见文]片层之间成51.1角的双层[公式:见文]。利用该纳米复合材料制备了同时检测多巴胺(DA)和抗坏血酸(AA)的电化学传感器。差分脉冲伏安法、循环伏安法和电化学阻抗法在N - 2饱和磷酸盐缓冲溶液(0.1 M, pH = 5)中表现出优异的电催化活性。传感器对DA的检测限为1.74[公式:见文]M，对AA的检测限为1.57[公式:见文]M。

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Preparation of novel azobenzene derivatives/potassium niobate nanocomposite and its application in electrochemical sensors

The guest molecule trans-[2-(2,2,3,3,4,4,4-heptafluorobutylamino) ethyl]-2-[4-(4-hexanobenzazo)-phenoxy] ethyl-dimethylammonium (abbreviated as C 3 F 7 -azo[Formula: see text]Br[Formula: see text]) were inserted into the K 4 Nb 6 O[Formula: see text] laminated by the guest–guest exchange method to synthesize C 3 F 7 -azo[Formula: see text]/Nb 6 O[Formula: see text] type-A nanocomposite with excellent electrochemical properties. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier Transform infrared (FTIR) spectrometer and energy dispersive spectroscopy (EDS) were used to characterize the structure and morphology of nanocomposite C 3 F 7 -azo[Formula: see text]/Nb 6 O[Formula: see text]. C 3 F 7 -azo[Formula: see text]ions were speculated to form bilayer between the [Nb 6 O[Formula: see text]][Formula: see text]lamellar at an angle of 51.1[Formula: see text] by morphology analysis and lamellar spacing calculation. This nanocomposite was used to fabricate an electrochemical sensor for simultaneous detection of dopamine (DA) and ascorbic acid (AA). Differential pulse voltammetry, cyclic voltammetry and electrochemical impedance spectroscopy in N 2 -saturated phosphate buffered solution (0.1 M, pH = 5) demonstrated excellent electrocatalytic activity. The sensor achieved detection limits of 1.74 [Formula: see text]M for DA and 1.57 [Formula: see text]M for AA.

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来源期刊

Functional Materials Letters 工程技术-材料科学：综合

CiteScore

2.40

自引率

7.70%

发文量

审稿时长

1.9 months

期刊介绍： Functional Materials Letters is an international peer-reviewed scientific journal for original contributions to research on the synthesis, behavior and characterization of functional materials. The journal seeks to provide a rapid forum for the communication of novel research of high quality and with an interdisciplinary flavor. The journal is an ideal forum for communication amongst materials scientists and engineers, chemists and chemical engineers, and physicists in the dynamic fields associated with functional materials. Functional materials are designed to make use of their natural or engineered functionalities to respond to changes in electrical and magnetic fields, physical and chemical environment, etc. These design considerations are fundamentally different to those relevant for structural materials and are the focus of this journal. Functional materials play an increasingly important role in the development of the field of materials science and engineering. The scope of the journal covers theoretical and experimental studies of functional materials, characterization and new applications-related research on functional materials in macro-, micro- and nano-scale science and engineering. Among the topics covered are ferroelectric, multiferroic, ferromagnetic, magneto-optical, optoelectric, thermoelectric, energy conversion and energy storage, sustainable energy and shape memory materials.