三维复合薄膜{PDDA/rGO}-Au@P_(8)W_(48)的制备及其对抗坏血酸的电催化作用  

Preparation of Three Dimensional Composite Film{PDDA/rGO}-Au@P_(8)W_(48) and Its Electrocatalytic Effect on Ascorbic Acid

作　　者：鲍雅妍 王玉珍[1] 刘荔贞 冯锋[1] BAO Ya-yan;WANG Yu-zhen;LIU Li-zhen;FENG Feng(School of Chemistry and Chemical Engineering,Shanxi Datong University,Datong Shanxi,037009)

机构地区：[1]山西大同大学化学与化工学院,山西大同037009

出　　处：《山西大同大学学报（自然科学版）》2022年第6期1-4,22,共5页Journal of Shanxi Datong University(Natural Science Edition)

基　　金：国家自然科学基金资助项目[21375083];大同市重点产业研发项目[2018014];2019年山西大同大学校级科研项目。

摘　　要：采用电化学还原辅助技术成功制备了多金属氧酸盐(P_(8)W_(48))、还原态氧化石墨烯(rGO)和金纳米粒子(AuNPs)三维纳米复合薄膜{PDDA/rGO}-Au@P_(8)W_(48),并研究了其对抗坏血酸(AA)的电催化行为。研究结果表明,用{PDDA/rGO}-Au@P_(8)W_(48)修饰电极可制成检测AA的传感器,具有高灵敏度0.215 A/(mol/L)、低检测限(0.22μmol/L)、良好选择性、快速响应的特点,用于实际样品中AA的检测,平均回收率为95.24%~101.3%。Three dimensional nano composite film{PDDA/rGO}-Au@P_(8)W_(48) including polyoxometalate cluster(P_(8)W_(48)),reduced graphene oxide(rGO)and Au nanoparticles(Au NPs)was successfully prepared by electrochemical reduction assisted technique,and its electrocatalytic behavior of ascorbic acid(AA)was studied.Research results show that{PDDA/rGO}-Au@P_(8)W_(48) modified electrode can be made into a sensor for detecting AA with high sensitivity(0.215 A/(mol/L)),low detection limit(0.22μmol/L),good selectivity and fast response.The sensor was applied to the detection of AA in actual samples with an average recovery of 95.24%~101.3%.

关 键 词：多金属氧酸盐 石墨烯 金纳米粒子 抗坏血酸 电催化 

分 类 号：O613.3[理学—无机化学]