Copolymerization of aniline with m-nitroaniline and removal of m-nitroaniline from aqueous solutions using a polyaniline-modified electrode: A comparative study

被引：29

作者：

Ding, Liang ^{[1
]}

Li, Qin ^{[1
]}

Zhou, Dandan ^{[1
]}

Cui, Hao ^{[1
]}

Tang, Rong ^{[2
]}

Zhai, Jianping ^{[1
]}

机构：

[1] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210093, Peoples R China

[2] Nanjing Radio & TV Univ, Nanjing 210002, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2012年 / 77卷

基金：

高等学校博士学科点专项科研基金;

关键词：

Aniline and m-nitroaniline; Copolymerization; Removal; ELECTROCHEMICAL COPOLYMERIZATION; SUBSTITUTED ANILINES; CHEMICAL-SYNTHESIS; O-AMINOPHENOL; POLYMERIZATION; 4-NITROANILINE; ACID; BIODEGRADATION; TOLUIDINE;

D O I：

10.1016/j.electacta.2012.06.012

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Although m-nitroaniline does not homopolymerize, copolymers of aniline with m-nitroaniline (poly (aniline-co-m-nitroaniline)) were readily synthesized in various molar ratios of co-monomers by chemical and electrochemical polymerization. The copolymerization rate decreased with an increasing ratio of m-nitroaniline in the monomer. The prepared copolymers were characterized by UV-vis spectra and FTIR spectra. Due to the presence of electron-withdrawing groups (-NO2), two main adsorption bands of UV-vis spectra had an obvious blue shift, and the characterized peaks of nitro groups were found in FTIR spectra. The data verified the successful copolymerization of aniline with m-nitroaniline. Besides, m-nitroaniline could polymerize on a polyaniline-modified electrode to generate the polyaniline/poly(m-nitroaniline) composite using potential cycling. The formation of the composite was proven by the increase of redox current for the polymerization of m-nitroaniline. FTIR spectra and EDX spectra demonstrated its polymerization. The content of m-nitroaniline polymerized on polyaniline was calculated to be 22.7% of the composite after 50 cycles through XPS analysis. Hence, based on the polymerization of m-nitroaniline on polyaniline, it can be used to remove m-nitroaniline from aqueous solutions. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：302 / 308

页数：7

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