Electrochemical Performance of Polyaniline-Polyvanadate-Copper Nanomaterials for the Detection of Benzoic Acid

IF 2.5 4区 化学 Q3 POLYMER SCIENCE
Yiming Gao, Lihong Zhuang, Yanan Zhang, Yong Zhang, Lizhai Pei, Xinjiong Li
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引用次数: 0

Abstract

The introduction of nanomaterials as modified electrode materials into the field of electrochemical sensing is expected to improve the reliability, sensitivity, selectivity and repeatability of electrochemical sensors in detecting pollutants in the water environment. In this study, copper vanadate nanomaterials (Cu3V2O7(OH)2·2H2O, referred to as CVO) and Cu3V2O7(OH)2·2H2O/polyyaniline (PANI) composite nanomaterials (referred to as CVO/PANI) are successfully prepared and characterized by Fourier transform infrared spectrum (FTIR), X-ray traveling-action (XRD), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM). The modified glassy carbon electrodes (GCE) with these two materials are used for the detection of benzoic acid (BA) and exhibit excellent electrochemical sensing performance. The results show that two pairs of semi-reversible redox peaks exist in both CVO and CVO/PANI modified glassy carbon electrode (GCE) in BA solution. The linear range of CVO and CVO/PANI nanomaterials-modified GCE is 0.01–2 mm and 0.001–2 mm, and the limits of detection are 2.16 and 0.41 µm, respectively. PANI plays important role in the electrochemical responses of BA at CVO/PANI modified GCE. PANI enhances the intensities of CV peaks and electrochemical determination ability for BA.

用于检测苯甲酸的聚苯胺-聚钒酸铜纳米材料的电化学性能
将纳米材料作为改性电极材料引入电化学传感领域有望提高电化学传感器检测水环境污染物的可靠性、灵敏度、选择性和重复性。本研究成功制备了钒酸铜纳米材料(Cu3V2O7(OH)2-2H2O,简称 CVO)和 Cu3V2O7(OH)2-2H2O/聚苯胺(PANI)复合纳米材料(简称 CVO/PANI),并通过傅立叶变换红外光谱(FTIR)、X 射线行进反应(XRD)、扫描电子显微镜(SEM)和高分辨率透射电子显微镜(HR-TEM)对其进行了表征。使用这两种材料修饰的玻璃碳电极(GCE)被用于检测苯甲酸(BA),并表现出优异的电化学传感性能。结果表明,在 BA 溶液中,CVO 和 CVO/PANI 修饰的玻璃碳电极(GCE)都存在两对半可逆氧化还原峰。CVO 和 CVO/PANI 纳米材料修饰的 GCE 的线性范围分别为 0.01-2 mM 和 0.001-2 mM,检出限分别为 2.16 µM 和 0.41 µM。聚苯胺在 CVO/PANI 改性 GCE 的 BA 电化学反应中起着重要作用。PANI 增强了 CV 峰的强度和 BA 的电化学测定能力。本文受版权保护。
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来源期刊
Macromolecular Chemistry and Physics
Macromolecular Chemistry and Physics 化学-高分子科学
CiteScore
4.30
自引率
4.00%
发文量
278
审稿时长
1.4 months
期刊介绍: Macromolecular Chemistry and Physics publishes in all areas of polymer science - from chemistry, physical chemistry, and physics of polymers to polymers in materials science. Beside an attractive mixture of high-quality Full Papers, Trends, and Highlights, the journal offers a unique article type dedicated to young scientists – Talent.
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