纳米Fe2O3-还原氧化石墨烯复合材料的制备及对双酚A的检测  

Preparation of nano Fe2O3-reduced graphene oxide composite and its determination of bisphenol A

作　　者：刘斌 许春莉 王许云[1] LIU Bin;XU Chunli;WANG Xuyun(School of Chemical Engineering,Qingdao University of Science&Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学化工学院,青岛266042

出　　处：《复合材料学报》2020年第1期182-190,共9页Acta Materiae Compositae Sinica

基　　金：2019山东省研究生导师指导能力提升项目;新工科背景下研究生协同创新培养队伍和立体化平台建设。

摘　　要：双酚A(BPA)被广泛应用于食品包装材料中,它会引起人体内分泌失调,并导致免疫和生殖系统异常,因此对生活用水中BPA的检测十分重要。本文采用一步水热法合成纳米Fe2O3-还原氧化石墨烯(Fe2O3-rGO)复合材料并进行表征,基于Fe2O3-rGO复合材料构建电化学传感器Fe2O3-rGO/玻碳电极,用于检测水样中的BPA。通过FTIR、XRD和SEM分析,表明纳米Fe2O3粒子成功附着到rGO上;采用微分脉冲伏安法(DPV)进行BPA的电化学检测,结果显示BPA在0.1~100μmol/L范围内呈现良好的线性关系,检出限为0.033μmol/L(信噪比为3)。同时,Fe2O3-rGO/玻碳电极电化学传感器对电活性物质和常见金属离子具有良好的抗干扰能力,且实样检测结果理想。The bisphenol A(BPA)is widely used in food packaging materials.It can cause endocrine disorders in human body and lead to abnormal immune and reproductive system,so it is very important to detect BPA in water.In this paper,the ferric oxide-reduced graphene oxide(Fe2O3-rGO)composite was synthesized and characterized by one step hydrothermal method.Based on the Fe2O3-rGO composite,the Fe2O3-rGO/glassy carbon electrode electrochemical sensor was constructed for the detection of BPA in water.The results of FTIR,XRD and SEM show that Fe2O3nanoparticles are successfully attached to rGO.The electrochemical detection of BPA by differential pulse voltammetry(DPV)shows that the linear range of BPA is 0.1-100μmol/L and the detection limit is 0.033μmol/L(signal to noise ratio is 3).Meanwhile,the Fe2O3-rGO/glassy carbon electrode electrochemical sensor has good anti-interference ability to electroactive substances and common metal ions and the real sample detection results are ideal.

关 键 词：石墨烯 金属氧化物 电化学传感器 双酚A 示差脉冲伏安法 

分 类 号：TB333[一般工业技术—材料科学与工程]