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论文类型： 期刊论文

发表时间： 2013-08-01

发表刊物： CHEMICAL ENGINEERING JOURNAL

收录刊物： SCIE、EI

卷号： 229

页面范围： 460-468

ISSN号： 1385-8947

关键字： Polyaniline; Reduced graphene oxide; Hg(II); Adsorption; Aqueous phase

摘要： The composite of polyaniline and reduced graphene oxide (PANI/RGO) was prepared through polymerization of aniline in the presence of graphene oxide, and further reduction by hydrate hydrazine. It was utilized as the effective adsorbent towards the adsorption of mercury(II) in aqueous solutions. As compared to PANI, the maximum adsorption capacity of PANI/RGO for Hg(II) was increased from 515.46 mg/g to 1000.00 mg/g and adsorption process was accelerated at pH 4.0. The superior adsorption was attributed to the presence of reduced graphene oxide which results 7 times enhancement in the specific surface area and the adsorption sites revealed by SEM, TEM and BET characterization. Co-adsorptive removal of dyes and Hg(II) can be realized using this adsorbent. (C) 2013 Elsevier B.V. All rights reserved.