A novel electrochemical sensor for glyphosate detection based on Ti3C2T x /Cu-BTC nanocomposite

Shan Wang; Yanqing Yao; Jia Zhao; Xuhui Han; Chunpeng Chai; Pei Dai

doi:10.1039/d1ra08064d

A novel electrochemical sensor for glyphosate detection based on Ti₃C₂T _x /Cu-BTC nanocomposite

RSC Adv. 2022 Feb 10;12(9):5164-5172. doi: 10.1039/d1ra08064d.

Authors

Shan Wang¹, Yanqing Yao¹, Jia Zhao¹, Xuhui Han¹, Chunpeng Chai¹, Pei Dai²

Affiliations

¹ School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China chaicp@bit.edu.cn.
² Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application Co.,Ltd. Beijing 100015 China daipei008@126.com.

Abstract

The copper benzene-1,3,5-tricarboxylate (Cu-BTC) with outstanding chemical and physical properties, is a novel and promising material in the field of electrochemical sensing. However, it has significant limitations for direct application in electrochemical sensing due to the relatively weak conductivity of Cu-BTC. Here, the conductivity of Cu-BTC was improved by loading Cu-BTC onto two-dimensional Ti₃C₂T _x nanosheets with high conductivity. Thanks to the synergistic effect produced by the high conductivity of Ti₃C₂T _x and the unique catalytic activity of Cu-BTC, the Ti₃C₂T _x /Cu-BTC nanocomposite exhibits excellent sensing performance for glyphosate, with a low limit of detection (LOD) of 2.6 × 10^-14 M and wider linear sensing range of 1.0 × 10^-13 to 1.0 × 10^-6 M. Moreover, the electrochemical sensor based on Ti₃C₂T _x /Cu-BTC also shows excellent selectivity, good reproducibility and stability.