A micromilled microgrid sensor with delaminated MXene-bismuth nanocomposite assembly for simultaneous electrochemical detection of lead(II), cadmium(II) and zinc(II)

Xiaolei Zhu; Bingchuan Liu; Ling Li; Longsheng Wu; Sijing Chen; Long Huang; Jiakuan Yang; Sha Liang; Keke Xiao; Jingping Hu; Huijie Hou

doi:10.1007/s00604-019-3837-3

A micromilled microgrid sensor with delaminated MXene-bismuth nanocomposite assembly for simultaneous electrochemical detection of lead(II), cadmium(II) and zinc(II)

Xiaolei Zhu, Bingchuan Liu, Ling Li, Longsheng Wu, Sijing Chen, Long Huang, Jiakuan Yang, Sha Liang, Keke Xiao, Jingping Hu^*, Huijie Hou

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

A delaminated MXene-bismuth (Bi@d-Ti₃C₂) nanocomposite was synthesized for the construction of a microgrid electrochemical sensor via mechanical milling. The Bi@d-Ti₃C₂ nanocomposite was synthesized by accumulation of Bi(III) on the surface of delaminated Ti₃C₂ nanosheets through electrostatic attraction and subsequent in-situ growth of bismuth nanorods. Under optimized experimental conditions, the sensor exhibits (a) linear responses to Pb(II), Cd(II) and Zn(II) in the concentration range from 1 to 20 μg L⁻¹, (b) well separated peak potentials at −0.54 V, −0.76 V and − 1.15 V vs. Ag/AgCl, (c) sensitivities of 0.98, 0.84 and 0.60 μA L μg⁻¹, and (d) detection limits of 0.2, 0.4 and 0.5 μg L⁻¹, respectively. This performance is attributed to the uniform dispersion of Bi nanorods on electrically conductive delaminated Ti₃C₂ MXene, and to the enhanced diffusion due to the microgrid structure. [Figure not available: see fulltext.]

Original language	English
Article number	776
Journal	Microchimica Acta
Volume	186
Issue number	12
DOIs	https://doi.org/10.1007/s00604-019-3837-3
State	Published - 1 Dec 2019
Externally published	Yes

Keywords

Bismuth
Heavy metal ions
MXene
Microgrid electrochemical sensor
Micromilling
Square wave anodic stripping voltammetry

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10.1007/s00604-019-3837-3

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title = "A micromilled microgrid sensor with delaminated MXene-bismuth nanocomposite assembly for simultaneous electrochemical detection of lead(II), cadmium(II) and zinc(II)",

abstract = "A delaminated MXene-bismuth (Bi@d-Ti3C2) nanocomposite was synthesized for the construction of a microgrid electrochemical sensor via mechanical milling. The Bi@d-Ti3C2 nanocomposite was synthesized by accumulation of Bi(III) on the surface of delaminated Ti3C2 nanosheets through electrostatic attraction and subsequent in-situ growth of bismuth nanorods. Under optimized experimental conditions, the sensor exhibits (a) linear responses to Pb(II), Cd(II) and Zn(II) in the concentration range from 1 to 20 μg L−1, (b) well separated peak potentials at −0.54 V, −0.76 V and − 1.15 V vs. Ag/AgCl, (c) sensitivities of 0.98, 0.84 and 0.60 μA L μg−1, and (d) detection limits of 0.2, 0.4 and 0.5 μg L−1, respectively. This performance is attributed to the uniform dispersion of Bi nanorods on electrically conductive delaminated Ti3C2 MXene, and to the enhanced diffusion due to the microgrid structure. [Figure not available: see fulltext.]",

keywords = "Bismuth, Heavy metal ions, MXene, Microgrid electrochemical sensor, Micromilling, Square wave anodic stripping voltammetry",

author = "Xiaolei Zhu and Bingchuan Liu and Ling Li and Longsheng Wu and Sijing Chen and Long Huang and Jiakuan Yang and Sha Liang and Keke Xiao and Jingping Hu and Huijie Hou",

note = "Publisher Copyright: {\textcopyright} 2019, Springer-Verlag GmbH Austria, part of Springer Nature.",

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T1 - A micromilled microgrid sensor with delaminated MXene-bismuth nanocomposite assembly for simultaneous electrochemical detection of lead(II), cadmium(II) and zinc(II)

AU - Zhu, Xiaolei

AU - Liu, Bingchuan

AU - Li, Ling

AU - Wu, Longsheng

AU - Chen, Sijing

AU - Huang, Long

AU - Yang, Jiakuan

AU - Liang, Sha

AU - Xiao, Keke

AU - Hu, Jingping

AU - Hou, Huijie

PY - 2019/12/1

Y1 - 2019/12/1

N2 - A delaminated MXene-bismuth (Bi@d-Ti3C2) nanocomposite was synthesized for the construction of a microgrid electrochemical sensor via mechanical milling. The Bi@d-Ti3C2 nanocomposite was synthesized by accumulation of Bi(III) on the surface of delaminated Ti3C2 nanosheets through electrostatic attraction and subsequent in-situ growth of bismuth nanorods. Under optimized experimental conditions, the sensor exhibits (a) linear responses to Pb(II), Cd(II) and Zn(II) in the concentration range from 1 to 20 μg L−1, (b) well separated peak potentials at −0.54 V, −0.76 V and − 1.15 V vs. Ag/AgCl, (c) sensitivities of 0.98, 0.84 and 0.60 μA L μg−1, and (d) detection limits of 0.2, 0.4 and 0.5 μg L−1, respectively. This performance is attributed to the uniform dispersion of Bi nanorods on electrically conductive delaminated Ti3C2 MXene, and to the enhanced diffusion due to the microgrid structure. [Figure not available: see fulltext.]

AB - A delaminated MXene-bismuth (Bi@d-Ti3C2) nanocomposite was synthesized for the construction of a microgrid electrochemical sensor via mechanical milling. The Bi@d-Ti3C2 nanocomposite was synthesized by accumulation of Bi(III) on the surface of delaminated Ti3C2 nanosheets through electrostatic attraction and subsequent in-situ growth of bismuth nanorods. Under optimized experimental conditions, the sensor exhibits (a) linear responses to Pb(II), Cd(II) and Zn(II) in the concentration range from 1 to 20 μg L−1, (b) well separated peak potentials at −0.54 V, −0.76 V and − 1.15 V vs. Ag/AgCl, (c) sensitivities of 0.98, 0.84 and 0.60 μA L μg−1, and (d) detection limits of 0.2, 0.4 and 0.5 μg L−1, respectively. This performance is attributed to the uniform dispersion of Bi nanorods on electrically conductive delaminated Ti3C2 MXene, and to the enhanced diffusion due to the microgrid structure. [Figure not available: see fulltext.]

KW - Bismuth

KW - Heavy metal ions

KW - MXene

KW - Microgrid electrochemical sensor

KW - Micromilling

KW - Square wave anodic stripping voltammetry

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A micromilled microgrid sensor with delaminated MXene-bismuth nanocomposite assembly for simultaneous electrochemical detection of lead(II), cadmium(II) and zinc(II)

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