Short rod-like Ni-MOF anchored on graphene oxide nanosheets: A promising voltammetric platform for highly sensitive determination of pchloronitrobenzene

被引：32

作者：

Gao, Jun ^{[1
]}

He, Ping ^{[1
,2
]}

Yang, Tiantian ^{[1
]}

Wang, Xuejiao ^{[1
]}

Zhou, Lianhong ^{[1
]}

He, Qihang ^{[1
]}

Jia, Lingpu ^{[1
]}

Deng, Hongquan ^{[1
]}

Zhang, Hui ^{[2
,3
]}

Jia, Bin ^{[2
,4
]}

He, Xiaochun ^{[1
]}

机构：

[1] Southwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Sichuan, Peoples R China

[2] Int Sci & Technol Cooperat Lab Micronanoparticle, Mianyang 621010, Sichuan, Peoples R China

[3] Western Univ, Dept Chem & Biochem Engn, London, ON N6A 5B9, Canada

[4] Southwest Univ Sci & Technol, Key Lab Shock & Vibrat Engn Mat & Struct Sichuan, Mianyang 621010, Sichuan, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2020年 / 861卷

基金：

中国国家自然科学基金;

关键词：

Electrochemical determination; p-Chloronitrobenzene; Sensing platform; Ni-MOF; Graphene oxide; METAL-ORGANIC FRAMEWORK; SIMULTANEOUS ELECTROCHEMICAL DETERMINATION; CARBON ELECTRODE PREPARATION; P-CHLORONITROBENZENE; URIC-ACID; SENSING PERFORMANCE; GLUCOSE SENSOR; ASCORBIC-ACID; COMPOSITES; REDUCTION;

D O I：

10.1016/j.jelechem.2020.113954

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Constructing a sensitive voltammetric platform to analyze highly toxic organic pollutant p-chloronitrobenzene (pCNB) is highly desirable in environmental monitoring. Herein, a composite consisting of nickel-based metal-organic framework (Ni-MOF) and graphene oxide (GO) was successfully prepared by facile and cost-efficient chemical precipitation, and itwas further used as a modified material to develop an electrochemical sensor for p-CNB. Electrochemical properties of as-prepared sensor were investigated by electrochemical impedance spectroscopy, cyclic voltammetry and differential pulse voltammetry. As a result, the composite sensor showed superior electrocatalytic performance towards the oxidation of p-CNB in a concentration range of 0.10-300.0 mu M, and the detection limit was 8.0 nM (S/N= 3). Furthermore, as-prepared Ni-MOF/GO composite based sensor exhibited favorable reproducibility, durable stability and prominent selectivity. The practicability of the sensor was evaluated by detecting p-CNB in real tap water samples and satisfactory recovery rates were obtained, revealing its potential application for detection of p-CNB in water environment. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：9

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