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A molecularly imprinted electrochemical sensor based on sol–gel technology and multiwalled carbon nanotubes–Nafion functional layer for determination of 2-nonylphenol in environmental samples
Jin Zhang;  Yanhui Niu;  Shijie Li;  Rongqin Luo;  Chaoying Wang
2014
发表期刊Sensors and Actuators B: Chemical
卷号193页码:844-850
摘要

In this work, we have proposed a sensitive and selective detection technique for 2-nonylphenol (2-NP) based on the differential pulse voltammetry at a molecularly imprinted film on a glassy carbon electrode (GCE). The imprinted film was immobilised on the GCE by electrodeposition of a molecularly imprinted polymer(MIP) sol–gel consisting of a multiwalled carbon nanotube (MWNT)–Nafion (NF) composite. The modification procedure was characterized by cyclic voltammetry(CV), electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM). The recognition between MIP sol–gel film and target moleculewas observed by measuring the change in DPV response of the oxidation-reductionprobe, K3Fe(CN)6 on GCE. Under optimized operational conditions, a linear response was obtained covering the concentration range from 0.2 to 360 μmol L −1with a detection limit of 0.06 μmol L −1. The proposed sensor was applied to 2-NP determination in water and soil samples with the recoveries from 95.4 to 98.1%, showing a promising potential application in environment samples. Additionally, The imprinted sensor demonstrated higher affinity for target 2-NP than that of non-imprinted polymer (NIP) sensor.

关键词Amperometric Sensor Imprinted Sol–gel Multiwalled Carbon Nanotubes Nafion 2-nonylphenol
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/9386
专题环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, PR China
2.School of Chemistry and Life Science, Guizhou Normal College, Guiyang 550018, PR China
推荐引用方式
GB/T 7714
Jin Zhang;Yanhui Niu;Shijie Li;Rongqin Luo;Chaoying Wang. A molecularly imprinted electrochemical sensor based on sol–gel technology and multiwalled carbon nanotubes–Nafion functional layer for determination of 2-nonylphenol in environmental samples[J]. Sensors and Actuators B: Chemical,2014,193:844-850.
APA Jin Zhang;Yanhui Niu;Shijie Li;Rongqin Luo;Chaoying Wang.(2014).A molecularly imprinted electrochemical sensor based on sol–gel technology and multiwalled carbon nanotubes–Nafion functional layer for determination of 2-nonylphenol in environmental samples.Sensors and Actuators B: Chemical,193,844-850.
MLA Jin Zhang;Yanhui Niu;Shijie Li;Rongqin Luo;Chaoying Wang."A molecularly imprinted electrochemical sensor based on sol–gel technology and multiwalled carbon nanotubes–Nafion functional layer for determination of 2-nonylphenol in environmental samples".Sensors and Actuators B: Chemical 193(2014):844-850.
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