%0 Journal Article
%T A Cross-Linker-Based Poly(Ionic Liquid) for Sensitive Electrochemical Detection of 4-Nonylphenol
%A Guobao Zhou
%A Hailong Wang
%A Hao Dai
%A Jian Hu
%A Lei Li
%A Longhua Guo
%A Ruoyu Chen
%A Xudong Zhu
%A Yanbo Zeng
%A Yiwen Yang
%J Archive of "Nanomaterials".
%D 2019
%R 10.3390/nano9040513
%X In this study, we report a cross-linker-based poly(ionic liquid) (PIL) for the sensitive detection of 4-nonylphenol (4-NP). PIL was poly(1,4-butanediyl-3,3¡ä-bis-l-vinylimidazolium dibromide) (poly([V2C4(mim)2]Br2)). Poly([V2C4(mim)2]Br2) was prepared via one-step free-radical polymerization. The poly([V2C4(mim)2]Br2) was characterized by infrared spectroscopy, Raman spectroscopy, thermal gravimetric analyzer and scanning electron microscope. The poly([V2C4(mim)2]Br2) was then drop-cast onto a glassy carbon electrode (GCE) to obtain poly([V2C4(mim)2]Br2)/GCE. In comparison with a bare GCE, poly([V2C4(mim)2]Br2)/GCE exhibited higher peak current responses for [Fe(CN)6]3£¿/4£¿, lower charge transfer resistance, and larger effective surface area. While comparing the peak current responses, we found the peak current response for 4-NP using poly([V2C4(mim)2]Br2)/GCE to be 3.6 times higher than a traditional cross-linker ethylene glycol dimethacrylate (EGDMA) based poly(EGDMA) modified GCE. The peak current of poly([V2C4(mim)2]Br2) sensor was linear to 4-NP concentration from 0.05 to 5 ¦ÌM. The detection limit of 4-NP was obtained as 0.01 ¦ÌM (S/N = 3). The new PIL based electrochemical sensor also exhibited excellent selectivity, stability, and reusability. Furthermore, the poly([V2C4(mim)2]Br2)/GCE demonstrated good 4-NP detection in environmental water samples
%K poly(ionic liquid)
%K cross-linker
%K electrochemical detection
%K 4-nonylphenol
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6523804/