期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 306, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molliq.2020.112877
关键词
Grapheme oxides; Gamma ray irradiation induced radical polymerization; Organic dyes; Metal oxide ions; Adsorption
资金
- National Natural Science Foundation of China [21865012, 21788102, 21564006, 21561022, 21644014]
A facile one-step synthesis method based on Gamma ray irradiation induced radical polymerization was proposed for the first time for preparation of graphene oxide-ionic liquid composites (GO@IL) using 3-n-Hexadecyl-1-vinylimidazolium bromide ([C(16)VIm(+)] [Br-]) as the monomer. The GO@IL composites were utilized as adsorbents for adsorption and separation of Sunset Yellow (SY) and chromium (Cr, VI) ions from the stock solution. The maximum adsorption capacities of prepared GO@IL to adsorb SY and Cr (VI) were observed in the acidic media at room temperature, with the maximum adsorption capacities of 169.6 and 75.8 mg g(-1), respectively. Various adsorption kinetics and isotherm models were employed to fit adsorption data to better understand the adsorption process and behavior of contaminants onto GO@IL surfaces. The value of Delta G(0) and Delta H-0 implied the adsorption were initiative and endothermic nature for SY and Cr (VI). The electrostatic and pi - pi stacking interactions were expected to be involved in the adsorption for SY and Cr (VI) onto the functionalized graphene oxide composite. These data illuminate that the adsorption performance of graphene oxides has enhanced remarkable after polymerization with [C(16)VIm(+)] [Br-] on their surface. Considering the regeneration ability, the easily synthetic GO@IL composites with great promise applications for wastewater treatment and purification. (C) 2020 Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据