Monolithic supermacroporous hydrogel prepared from high internal phase emulsions (HIPEs) for fast removal of Cu2+ and Pb2+ | |
Department | 环境材料与生态化学研究发展中心 |
Zhu YF(朱永峰)1,2; Zheng YA(郑易安)1,3; Wang F(王锋)1,2; Wang AQ(王爱勤)1; Zheng YA(郑易安); Wang AQ(王爱勤) | |
2016 | |
Source Publication | Chemical Engineering Journal |
ISSN | 1385-8947 |
Volume | 284Pages:422-430 |
Abstract | A series of monolithic supermacroporous hydrogels with three-dimensional structured polymeric network were successfully formed via thermal-initiated high internal phase emulsions (HIPEs) technique by grafting acrylic acid (AA) chains onto the backbone of chitosan (CTS), and then used as the adsorbents to remove Cu2+ and Pb2+ ions from the wastewater. The effects of pore structure of the as-prepared monolithic hydrogel, as well as external adsorption conditions including pH, initial concentration and contact time on the adsorption properties were systematically investigated. The results indicated that the presence of porous structure of these monolithic supermacroporous hydrogels was responsible for the fast adsorption kinetics, allowing the adsorption system to be finished within 5 min for Cu2+ and Pb2+ at the low concentration of 50 mg/g, and 20 min for Cu2+ and Pb2+ at the high concentration of 500 mg/g. In addition, these adsorbents exhibited higher adsorption capacity of 302.01 mg/g for Cu2+ and 611.94 mg/g for Pb2+ in the optimized pH range of 4–6, and the adsorption capacity had a slight decrease after five adsorption–desorption cycles, an indication of their excellent reusability. All the information revealed that these monolithic hydrogels with rich pore hierarchy are expected to show their potential application for highly efficient removal of Cu2+ and Pb2+ from aqueous solution. |
Keyword | High Internal Phase Emulsions (Hipes) Adsorption Heavy Metal Template Polymerization Oil-in-water Emulsion |
Subject Area | 环境材料与生态化学 |
DOI | 10.1016/j.cej.2015.08.157 |
Funding Organization | the National Natural Science Foundation of China (21377135;21477135;U1407114);“863” Project of the Ministry of Science and Technology, China (2013AA032003);the Fundamental Research Funds for the Central Universities (No. lzujbky-2015-127);Youth Innovation Promotion Association, CAS (2015343) |
Indexed By | SCI |
If | 6.216 |
Language | 英语 |
Funding Project | 功能复合材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20911 |
Collection | 环境材料与生态化学研究发展中心 |
Corresponding Author | Zheng YA(郑易安); Wang AQ(王爱勤) |
Affiliation | 1.Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Tianshui Middle Road 18, Lanzhou 730000, PR China 2.Graduate University of the Chinese Academy of Sciences, Beijing 100049, PR China 3.Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China |
Recommended Citation GB/T 7714 | Zhu YF,Zheng YA,Wang F,et al. Monolithic supermacroporous hydrogel prepared from high internal phase emulsions (HIPEs) for fast removal of Cu2+ and Pb2+[J]. Chemical Engineering Journal,2016,284:422-430. |
APA | Zhu YF,Zheng YA,Wang F,Wang AQ,郑易安,&王爱勤.(2016).Monolithic supermacroporous hydrogel prepared from high internal phase emulsions (HIPEs) for fast removal of Cu2+ and Pb2+.Chemical Engineering Journal,284,422-430. |
MLA | Zhu YF,et al."Monolithic supermacroporous hydrogel prepared from high internal phase emulsions (HIPEs) for fast removal of Cu2+ and Pb2+".Chemical Engineering Journal 284(2016):422-430. |
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