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Electrically controllable perchlorate removal based on poly(aniline‐ co‐o ‐aminophenol) doped with p ‐toluene sulfonate
Author(s) -
Dai Jiangying,
Tao Yongxin,
Gu Xiaogang,
Liu Zhong,
Kong Yong,
Liu Wenjie,
Ma Jianfeng,
Wei Yong
Publication year - 2015
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.41895
Subject(s) - aniline , sulfonate , copolymer , counterion , electrochemistry , perchlorate , quartz crystal microbalance , fourier transform infrared spectroscopy , polymer chemistry , toluene , materials science , dielectric spectroscopy , cyclic voltammetry , ion exchange , inorganic chemistry , chemistry , electrode , ion , chemical engineering , organic chemistry , polymer , adsorption , sodium , engineering
ABSTRACT Poly(aniline‐ co‐o ‐aminophenol) (PANOA) was synthesized via electrochemical copolymerization of o‐aminophenol and aniline using p‐toluene sulfonate (TSA − ) as the counterion. The redox transformation of PANOA is accompanied by the exchange of anions into and out of the copolymer, and the feasibility of perchlorate (ClO 4 − ) removal via an electrically switched ion exchange process was evaluated in this study. The results of electrochemical quartz crystal microbalance (EQCM), electrochemical impedance spectroscopy (EIS), and Fourier transform infrared spectroscopy (FTIR) demonstrated the successful release of TSA − upon reduction and uptake of ClO 4 − upon reoxidation of the copolymer. Also, in this work, the possible ion‐exchange mechanism of PANOA was proposed. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41895.