MnMgFe-LDHs/ZIF-8/B, N-WMCNTs nanocomposites for efficient electrochemical detection of nitrite and heavy metal ions

Xue Du; Tong Han; Biao Jin; Long‑Yue Meng; Lian‑Hua Han

doi:10.1007/s42823-025-00922-6

MnMgFe-LDHs/ZIF-8/B, N-WMCNTs nanocomposites for efficient electrochemical detection of nitrite and heavy metal ions

Carbon Letters
Abbr : Carbon Lett.
2025, 35(5), pp.2287~2297
DOI : 10.1007/s42823-025-00922-6
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : February 14, 2025
Accepted : May 9, 2025
Published : December 11, 2025

Xue Du ¹, Tong Han ¹, Biao Jin ¹, Long‑Yue Meng ¹, Lian‑Hua Han ¹

¹Yanbian University

Accredited

ABSTRACT

Contamination of food with heavy metal ions and nitrites poses a serious threat to human health. Consequently, the development of fast and sensitive platforms for detecting these contaminants is urgently required. In this paper, a novel MnMgFe-LDHs/DC sensor is constructed based on a simple strategy, in which MnMgFe layered double hydroxide (LDHs) is used as a metal precursor, and a unique "island bridge" carbon network structure is generated by its pyrolysis with ZIF-8@B, N-WMCNTs. The electrical conductivity was enhanced, and a large electroactive surface area was provided for the MnMgFe-LDHs/DC. The electrochemical properties of Pb2+, Cd2+ and nitrite were investigated using this electrode as a working electrode. Under optimized conditions, the sensing platform exhibited a wide linear range with the Pb2+, Cd2+, and NO2− limits of detection of 46.16 nM, 59.25 nM, and 0.083 μM, respectively. Of particular note is that this sensing platform exhibits outstanding anti-interference capabilities. It can precisely and efficiently conduct the detection of nitrite and heavy metal ions in pickled foods.

KEYWORDS

Carbon nanotubes, ZIF-8, MnMgFe-LDHs, Heavy metal ions, Nitrite, Electrochemical detection

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Carbon Letters 2025 KCI Impact Factor : 0.73 KCI-WoS Impact Factor : 6.26

MnMgFe-LDHs/ZIF-8/B, N-WMCNTs nanocomposites for efficient electrochemical detection of nitrite and heavy metal ions

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Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2026-07-09)

Total Citation Counts(KCI+WOS) (4) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

* References for papers published after 2025 are currently being built.

Carbon Letters 2025 KCI Impact Factor : 0.73 KCI-WoS Impact Factor : 6.26

MnMgFe-LDHs/ZIF-8/B, N-WMCNTs nanocomposites for efficient electrochemical detection of nitrite and heavy metal ions

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WoS Citation Counts (4) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2026-07-09)

Total Citation Counts(KCI+WOS) (4) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

REFERENCES (34) * References for papers published after 2025 are currently being built.

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2026-07-09)

* References for papers published after 2025 are currently being built.