Electrochemical Sensor Built on Graphene@Iron‐Based Metal–Organic Frameworks for Simultaneous Detection of Cd2+ and Pb2+

• DOI: 10.1002/elan.12002
• Publication Date: 2025-01-24T00:44:41Z
• Authors: Xiaofang Zheng; Yujie Han; Zhiguang Liu; Shufeng Liang; Chunyan Wang; Yujing Guo
• Keywords: Electrochemical gas sensor

The contamination of heavy metal ions (HMIs) in the environment poses a serious threat to health and safety. It is essential efficiently accurately detect multiple HMIs environmental samples for water quality monitoring. In this work, two‐dimensional material composed polyvinylpyrrolidone/graphene iron‐based metal–organic frameworks (PVP/GNs@Fe‐MOF) was synthesized by ultrasonic method. This combines advantages PVP/GNs Fe‐MOF, exhibiting enhanced conductivity, large specific surface area, porosity, thus broadening application potential MOF demonstrating excellent performance electrochemical sensing. Using PVP/GNs@Fe‐MOF as electrode material, simple sensing platform constructed simultaneous detection Cd 2+ Pb . results show good analytical with linear ranges 0.030–1.0 μmol/L 3.0 nmol/L−1.0 , limit 0.010 1.0 nmol/L (S/N = 3), respectively. rapid sensitive real sample also achieved.