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In situ Growth of a Cobalt‐based Metal‐organic Framework on Multi‐walled Carbon Nanotubes for Simultaneously Detection of Hydroquinone and Catechol.
Author(s) -
Zheng Shengbiao,
Hu Jiaqi,
Cui Xue,
Hu Tao,
Zhang Yuyang,
Guo Jiahao,
Tang Jing,
Wang Xuchun
Publication year - 2020
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202000023
Subject(s) - catechol , hydroquinone , nanocomposite , carbon nanotube , materials science , differential pulse voltammetry , cobalt , chemical engineering , porosity , electrochemistry , reproducibility , cyclic voltammetry , selectivity , in situ , detection limit , nuclear chemistry , nanotechnology , electrode , chemistry , composite material , organic chemistry , chromatography , metallurgy , catalysis , engineering
In the present study, we report a facile method for preparing a porous MWCNTs/ZIF‐67 nanocomposite with the help of a morphology‐maintained ZIF‐67 in situ growth on multi‐walled carbon nanotubes. Interesting, the MWCNTs/ZIF‐67 nanocomposite demonstrated excellent electrochemical activity for hydroquinone (HQ) and catechol (CC) attribute to the effective interconnections ZIF‐67 crystals and MWCNTs. The analytical curves for HQ and CC obtained by differential pulse voltammetry (DPV) were linear in the range from 0.5 to 100 μM. Benefitting from the excellent conductivity of MWCNTs as well as the high surface area and porosity of ZIF‐67, the advanced nanocomposite displayed good reproducibility, high selectivity and excellent stability, and was successfully employed to assay the content of dihydroxybenzene isomers in the lake water samples.