A novel electrochemical sensor for glyphosate detection based on Ti3C2Tx/Cu-BTC nanocomposite

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 conducti...

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Bibliographic Details
Published in:RSC advances 2022-02, Vol.12 (9), p.5164-5172
Main Authors: Wang, Shan, Yao, Yanqing, Zhao, Jia, Han, Xuhui, Chai, Chunpeng, Dai, Pei
Format: Article
Language:English
Subjects:
Benzene
Catalytic activity
Chemical sensors
Chemistry
Copper
Nanocomposites
Physical properties
Selectivity
Synergistic effect
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Summary: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 Ti3C2Tx nanosheets with high conductivity. Thanks to the synergistic effect produced by the high conductivity of Ti3C2Tx and the unique catalytic activity of Cu-BTC, the Ti3C2Tx/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 Ti3C2Tx/Cu-BTC also shows excellent selectivity, good reproducibility and stability.
ISSN:2046-2069
DOI:10.1039/d1ra08064d