MOF-Derived N-Doped Carbon Nanotube-Confined Ni Nanoparticles for the Simultaneous Electrochemical Detection of Cu²⁺ and Hg²⁺ with High Sensitivity and Stability DOI Creative Commons
Jiapeng Li, Lili Chen, Yiming Qiao

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1078 - 1078

Published: Feb. 26, 2025

Heavy metal pollution has posed a serious threat to the ecological environment and human health. Thus, development of accurate effective methods for their detection is crucial. In this study, novel electrochemical sensor was fabricated detect Cu2+ Hg2+, based on N-doped carbon nanotube-wrapped Ni nanoparticle (Ni@N-CNT) sensing material, which derived from pyrolysis Ni2+ doped ZIF-8. For electrode material design, packaging structure not only protected encapsulated nanoparticles corrosion in acid electrolyte but also provided excellent electro-catalytic activity electrical conductivity by controlling size. Thanks overall performance Ni@N-CNT composite, proposed exhibited analytical Hg2+ detection, with ultra-low limits 33.3 ng⋅L-1 ng⋅L-1, respectively. The demonstrated good repeatability, reproducibility selectivity. addition, method successfully applied analysis actual Chinese cabbage samples satisfactory recovery, confirming its practical applicability.

Language: Английский

MOF-Derived N-Doped Carbon Nanotube-Confined Ni Nanoparticles for the Simultaneous Electrochemical Detection of Cu²⁺ and Hg²⁺ with High Sensitivity and Stability DOI Creative Commons
Jiapeng Li, Lili Chen, Yiming Qiao

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1078 - 1078

Published: Feb. 26, 2025

Heavy metal pollution has posed a serious threat to the ecological environment and human health. Thus, development of accurate effective methods for their detection is crucial. In this study, novel electrochemical sensor was fabricated detect Cu2+ Hg2+, based on N-doped carbon nanotube-wrapped Ni nanoparticle (Ni@N-CNT) sensing material, which derived from pyrolysis Ni2+ doped ZIF-8. For electrode material design, packaging structure not only protected encapsulated nanoparticles corrosion in acid electrolyte but also provided excellent electro-catalytic activity electrical conductivity by controlling size. Thanks overall performance Ni@N-CNT composite, proposed exhibited analytical Hg2+ detection, with ultra-low limits 33.3 ng⋅L-1 ng⋅L-1, respectively. The demonstrated good repeatability, reproducibility selectivity. addition, method successfully applied analysis actual Chinese cabbage samples satisfactory recovery, confirming its practical applicability.

Language: Английский

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