Electrochemical sensing of 4-nitrochlorobenzene based on carbon nanohorns/graphene oxide nanohybrids

Gangbing Zhu; Heng Sun; Bin Zou; Zhenjiang Liu; Ning Sun; Yinhui Yi; Kwok Yin Wong

doi:10.1016/j.bios.2018.01.058

Electrochemical sensing of 4-nitrochlorobenzene based on carbon nanohorns/graphene oxide nanohybrids

Gangbing Zhu, Heng Sun, Bin Zou, Zhenjiang Liu, Ning Sun, Yinhui Yi, Kwok Yin Wong

Research output: Journal article publication › Journal article › Academic research › peer-review

44 Citations (Scopus)

Abstract

Owing to the harmful nature of 4-nitrochlorobenzene (4-NCB, one toxic organic pollutant) and the low cost, high sensitivity and ease of operation of electrochemical method, it is highly desirable to develop effect electrochemical sensor for the detection of 4-NCB. Herein, by partially unzipping carbon nanohorns (CNHs) via a simple wet-chemistry method, CNHs and graphene oxide (GO) (CNHs/GO) nanohybrids were produced for sensing 4-NCB with synergistic properties. While the retained CNHs offer a path for rapid electron transport, the GO sheets formed by partially unzipping CNHs provide abundant active sites, further increase in surface area as well as improved dispersibility of the CNHs/GO. Our results show that the CNHs/GO modified electrode has excellent sensitivity to 4-NCB with a wide linear response range and a detection limit as low as 10 nM.

Original language	English
Pages (from-to)	136-141
Number of pages	6
Journal	Biosensors and Bioelectronics
Volume	106
DOIs	https://doi.org/10.1016/j.bios.2018.01.058
Publication status	Published - 30 May 2018

Keywords

4-nitrochlorobenzene
Carbon nanohorns
Electrochemical sensor
Graphene
Modified electrode
Nanomaterial

ASJC Scopus subject areas

Biotechnology
Biophysics
Biomedical Engineering
Electrochemistry

More information

10.1016/j.bios.2018.01.058

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title = "Electrochemical sensing of 4-nitrochlorobenzene based on carbon nanohorns/graphene oxide nanohybrids",

abstract = "Owing to the harmful nature of 4-nitrochlorobenzene (4-NCB, one toxic organic pollutant) and the low cost, high sensitivity and ease of operation of electrochemical method, it is highly desirable to develop effect electrochemical sensor for the detection of 4-NCB. Herein, by partially unzipping carbon nanohorns (CNHs) via a simple wet-chemistry method, CNHs and graphene oxide (GO) (CNHs/GO) nanohybrids were produced for sensing 4-NCB with synergistic properties. While the retained CNHs offer a path for rapid electron transport, the GO sheets formed by partially unzipping CNHs provide abundant active sites, further increase in surface area as well as improved dispersibility of the CNHs/GO. Our results show that the CNHs/GO modified electrode has excellent sensitivity to 4-NCB with a wide linear response range and a detection limit as low as 10 nM.",

keywords = "4-nitrochlorobenzene, Carbon nanohorns, Electrochemical sensor, Graphene, Modified electrode, Nanomaterial",

author = "Gangbing Zhu and Heng Sun and Bin Zou and Zhenjiang Liu and Ning Sun and Yinhui Yi and Wong, {Kwok Yin}",

year = "2018",

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doi = "10.1016/j.bios.2018.01.058",

language = "English",

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T1 - Electrochemical sensing of 4-nitrochlorobenzene based on carbon nanohorns/graphene oxide nanohybrids

AU - Zhu, Gangbing

AU - Sun, Heng

AU - Zou, Bin

AU - Liu, Zhenjiang

AU - Sun, Ning

AU - Yi, Yinhui

AU - Wong, Kwok Yin

PY - 2018/5/30

Y1 - 2018/5/30

N2 - Owing to the harmful nature of 4-nitrochlorobenzene (4-NCB, one toxic organic pollutant) and the low cost, high sensitivity and ease of operation of electrochemical method, it is highly desirable to develop effect electrochemical sensor for the detection of 4-NCB. Herein, by partially unzipping carbon nanohorns (CNHs) via a simple wet-chemistry method, CNHs and graphene oxide (GO) (CNHs/GO) nanohybrids were produced for sensing 4-NCB with synergistic properties. While the retained CNHs offer a path for rapid electron transport, the GO sheets formed by partially unzipping CNHs provide abundant active sites, further increase in surface area as well as improved dispersibility of the CNHs/GO. Our results show that the CNHs/GO modified electrode has excellent sensitivity to 4-NCB with a wide linear response range and a detection limit as low as 10 nM.

AB - Owing to the harmful nature of 4-nitrochlorobenzene (4-NCB, one toxic organic pollutant) and the low cost, high sensitivity and ease of operation of electrochemical method, it is highly desirable to develop effect electrochemical sensor for the detection of 4-NCB. Herein, by partially unzipping carbon nanohorns (CNHs) via a simple wet-chemistry method, CNHs and graphene oxide (GO) (CNHs/GO) nanohybrids were produced for sensing 4-NCB with synergistic properties. While the retained CNHs offer a path for rapid electron transport, the GO sheets formed by partially unzipping CNHs provide abundant active sites, further increase in surface area as well as improved dispersibility of the CNHs/GO. Our results show that the CNHs/GO modified electrode has excellent sensitivity to 4-NCB with a wide linear response range and a detection limit as low as 10 nM.

KW - 4-nitrochlorobenzene

KW - Carbon nanohorns

KW - Electrochemical sensor

KW - Graphene

KW - Modified electrode

KW - Nanomaterial

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DO - 10.1016/j.bios.2018.01.058

M3 - Journal article

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SP - 136

EP - 141

JO - Biosensors

JF - Biosensors

ER -

Electrochemical sensing of 4-nitrochlorobenzene based on carbon nanohorns/graphene oxide nanohybrids

Abstract

Keywords

ASJC Scopus subject areas

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