Au@MOF-5衍生碳复合材料修饰电极用于维生素C的测定
Au@MOF-5 Derived Carbon Composite Modified Electrode for Sensitive Electrochemical Detection of Vitamin C
秦影 1邹如意 1刁慧婷 1王青艳 1万君怡 1庄玲2
作者信息
- 1. 上饶师范学院化学与环境科学学院,江西上饶 334001
- 2. 上饶师范学院物理科学与智能教育学院,江西上饶 334001
- 折叠
摘要
MOF-5衍生的碳材料(CC)和氯金酸经水热过程,制备了碳载纳米金复合物(Au@CC).用SEM和XRD对其形貌和晶相结构进行了分析.电化学性能测试表明,在pH=1的磷酸盐缓冲溶液(PBS)中,以Au@CC构建的电化学传感器(Au@CC/GCE)可增强维生素C(Vc)的电化学反应.在1.96～15.68×10-5mol/L浓度范围内,差分脉冲伏安法(DPV)测定了Vc的峰电流与浓度的线性关系为:I(mA)=0.00348Ci(10-5mol/L)+0.00452(γ=0.997),检测限(LOD)为0.010×10-5mol/L(S/N=3).可用于Vc样品的检测.
Abstract
By hydrothermal reaction of carbon derived from MOF-5(CC)and chloro-auric acid,carbon supported gold nanocomposites(Au@CC)were prepared.The morphology and crystal phase structure of the composites were analyzed by SEM and XRD.The electrochemical performance test shows that the sensor constructed with Au@CC(Au@CC/GCE)can enhance the electrochemical reaction of vitamin C(Vc)in PBS with pH=1.In the concentration range of 1.96～15.68×10-5 mol/L,the linear relationship between the oxidation peak current and the concentration of Vc measured by differential pulse voltammetry(DPV)is as follows:I(mA)=0.00348Ci(10-5mol/L)+0.00452(γ=0.997),the detection limit(LOD)was 0.010×10-5 mol/L(S/N=3).Au@CC/GCE is suitable for the detection of Vc samples.
关键词
MOF-5衍生碳/电化学传感器/磷酸盐缓冲溶液/维生素CKey words
MOF-5 derived carbon/electrochemical sensor/phosphate buffer solution/Vitamin C引用本文复制引用
基金项目
2022年省级引导市县科技发展专项资金项目(2023AB015)
校级创新训练项目(2022-PX-39)
省级创新训练计划项目(S202210416004)
出版年
2024
NETL
NSTL
万方数据