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 | |
Source Publication | Sensors and Actuators B: Chemical
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Volume | 193Pages:844-850 |
Abstract | 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. |
Keyword | Amperometric Sensor Imprinted Sol–gel Multiwalled Carbon Nanotubes Nafion 2-nonylphenol |
Indexed By | SCI |
Language | 英语 |
Document Type | 期刊论文 |
Identifier | http://ir.gyig.ac.cn/handle/42920512-1/9386 |
Collection | 环境地球化学国家重点实验室 |
Affiliation | 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 |
Recommended Citation 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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