Preparation of a Hollow Nanocomposite with Gold‐Embedded Zeolitic Imidazolate Framework‐67 for the Electrochemical Determination of Dopamine | Zendy

Dong Yuhua | Zendy; Liu Jianbo | Zendy; Zheng Jianbin | Zendy

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Preparation of a Hollow Nanocomposite with Gold‐Embedded Zeolitic Imidazolate Framework‐67 for the Electrochemical Determination of Dopamine

Author(s) -

Dong Yuhua,

Liu Jianbo,

Zheng Jianbin

Publication year - 2020

Publication title -

chemelectrochem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 59

ISSN - 2196-0216

DOI - 10.1002/celc.202001115

Subject(s) - nanocomposite , imidazolate , materials science , scanning electron microscope , zeolitic imidazolate framework , electrode , transmission electron microscopy , chemical engineering , electrochemistry , electrochemical gas sensor , detection limit , nanotechnology , nuclear chemistry , metal organic framework , chemistry , composite material , organic chemistry , adsorption , chromatography , engineering

This work employed a polystyrene sphere as a template to synthesize a hollow nanocomposite with gold‐embedded zeolitic imidazolate framework‐67 (H‐Au@ZIF‐67). The morphological and structural characteristics of the prepared composite were investigated by using scanning electron microscopy, transmission electron microscopy, X‐ray diffraction and energy‐disperse spectroscopy, indicating that H‐Au@ZIF‐67 with a sunflower‐shaped cross section was successfully prepared. The synthesized H‐Au@ZIF‐67 was used to construct a dopamine electrochemical sensor, which showed good linearity scope of 0.25–438.75 μM with a high sensitivity of 332.1 μA mM −1 cm −2 and low detection limit of 0.04 μM. These results showed that the H‐Au@ZIF‐67 can be a good electrode modification material for dopamine sensing.

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