高等学校化学学报2011，Vol.32Issue(7)：1645-1650,6.
PANI膜电聚合过程及电控分离苯酚的EQCM研究
EQCM Studies of Electropolymerization and Electrochemically Controlled Phenol Separation of Polyaniline Film
摘要
Abstract
Electroactive polyaniline ( PANI) thin filnis were synthesized on platinum substrates by electrochemical polymerization, the electrochemical quartz crystal microbalance ( EQCM) technique was adopted to investigate the polymerization process of the PANI film and its redox behavior in phenol solution. Combined with cyclic voltammetry(CV) , electroactivity and stability of the PANI film cycled between the reduced, leu-coemeraldine(L) state and the half-oxidized, emeraldine(E) state or between L and the fully oxidized, pemi-graniline(P) state were investigated in 0. 5 mol/L H2SO4 solution. In mixed solutions of phenol and H2SO4, chronocoulometry and FTIR were also used to investigate the electrochemically controlled phenol separation property of PANI film. Experimental results indicate that the abrupt changes of the film mass exist during the redox switching of PANI with the ion ejection/injection, especially with the increase of the films thickness; and PANI films have good electroactivity and stability when films are controlled between L and E during cycling process. Phenol in electrolyte will enter into the film when PANI is controlled as E, while release from the film into electrolyte again when PANI is modulated to L. Phenol enter or release from film can controlled freely by modulating the potential of PANI films, this characteristic can be used to separate the phenol from the solution.关键词
导电聚苯胺/电化学石英晶体微天平/苯酚/电控分离Key words
Conducting polyaniline/Electrochemical quartz crystal microbalance (EQCM)/Phenol/Electrochemically controlled separation分类
化学化工引用本文复制引用
李慧,李越,郝晓刚,张忠林,刘世斌..PANI膜电聚合过程及电控分离苯酚的EQCM研究[J].高等学校化学学报,2011,32(7):1645-1650,6.基金项目
国家自然科学基金(批准号:20676089),,山西省自然科学基金(批准号:2007011029)、山西省回国留学基金(批准号:2008-32)和太原市科技明星专项基金(批准号:10011611)资助. （批准号:20676089）
