炭黑负载的CeO_(2)纳米粒子修饰电极用于电化学测定双酚A  

Electrochemical determination of bisphenol A based on carbon black(CB)-supported CeO_(2)nanoparticles modified glassy carbon electrode

作　　者：蔡文静 靳婉 张炎 祝宁宁 CAI Wenjing;JIN Wan;ZHANG Yan;ZHU Ningning(College of Chemistry and Materials Science,Shanghai Normal University,Shanghai 200234,China)

机构地区：[1]上海师范大学化学与材料科学学院,上海200234

出　　处：《上海师范大学学报(自然科学版中英文)》2025年第1期1-7,共7页Journal of Shanghai Normal University(Natural Sciences)

摘　　要：制备了炭黑(CB)负载的二氧化铈纳米粒子(CeO_(2)NPs)修饰玻碳电极(GCE),实现对双酚A(BPA)的电化学测定.利用扫描电子显微镜(SEM)、能量色散X射线谱仪(EDS)和电化学手段对CB负载的CeO_(2)NPs的形貌及电化学性能进行了表征.结果表明:高比表面积和良好导电性的CB的加入能有效改善CeO_(2)NPs的分散性和导电性,该纳米复合材料修饰电极对BPA的电化学氧化呈现优异的电催化活性.在0.1~35.0μmol·L^(−1)和35.0~500.0μmol·L^(−1)范围内,BPA的氧化电流I_(pa)与其物质的量浓度呈线性关系,检出限(LOD)为0.08μmol·L^(−1)(信噪比S/N=3).Carbon black(CB)-supported cerium dioxide nanoparticles(CeO_(2)NPs)modified glassy carbon electrode(GCE)was used for electrochemical determination of bisphenol A(BPA).The morphology and electrochemical properties of CB loaded CeO_(2)NPs were characterized using scanning electron microscope(SEM),energy dispersive X-ray spectroscopy(EDS),and the electrochemical techniques.The experimental results show that the presence of carbon black with high specific surface area and good conductivity can effectively improve the dispersion and conductivity of CeO_(2)NPs and the nanocomposites modified GCE exhibits excellent electrocatalytic activity for the electrochemical oxidation of bisphenol A.The oxidation currents of bisphenol A(I_(pa))show a good linear relationship with its concentration within the range of 0.1-35.0μmol∙L^(-1) and 35.0-500.0μmol∙L^(-1),with a detection limit(LOD)of 0.08μmol∙L^(-1)(signal-to-noise ratio S/N=3).

关 键 词：二氧化铈纳米粒子(CeO_(2)NPs) 炭黑(CB) 电催化 双酚A(BPA) 

分 类 号：O646[理学—物理化学]