Fabrication of a magnetic porous hydrogel sphere for efficient enrichment of Rb+ and Cs+ from aqueous solution | |
Zhu YF(朱永峰)1![]() ![]() ![]() ![]() | |
刊名 | Chemical Engineering Research and Design
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2017 | |
卷号 | 125页码:214-225 |
关键词 | Pickering emulsion Attapulgite Porous hydrogel sphere Rare metals Adsorption |
ISSN号 | 0263-8762 |
通讯作者 | 王爱勤 |
英文摘要 | A series of magnetic porous hydrogel spheres were prepared from the oil in water (O/W) Pickering emulsion stabilized with silicone-modified magnetic attapulgite (MAPT), using hydroxypropyl cellulose (HPC) as the grafting backbone and acrylic acid (AA) as the monomer. The structure, morphologies and physico-chemical features of the Pickering emulsions and the hydrogel spheres were characterized by TEM, SEM, XRD and TGA techniques. The results revealed that the Fe3O4 was attached on the surface of APT with good dispersion, and the magnetic APT (MAPT) was modified successfully with silane. The emulsion with HPC, AA, initiator and cross linker inside can be directly dropped into hot liquid paraffin to form hydrogel sphere. The rod-like APT as the stabilizer facilitated to form open pore and interconnected pores. The magnetic porous hydrogel sphere can rapidly adsorbthe rare elements Rb+ and Cs+, with the maximum adsorption capacities of 232.46 and 239.88 mg/g, respectively. The adsorbed Rb+ and Cs+ ions can be recovered by a simple desorption process, and the hydrogel sphere also showed excellent reusability after five consecutive adsorption–desorption cycles. This porous sphere with excellent adsorption capability and rate is potential adsorbent for the adsorption and enrichment of rare metals Rb+ and Cs+. |
学科主题 | 环境材料与生态化学 |
收录类别 | SCI |
资助信息 | the National Natural Science Foundation of China (U1407114;51403221;51403229) |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/22056] ![]() |
专题 | 兰州化学物理研究所_甘肃省黏土矿物应用重点实验室 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
通讯作者 | Wang AQ(王爱勤) |
作者单位 | 1.Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, PR China |
推荐引用方式 GB/T 7714 | Zhu YF,Zhang Huifang,Wang WB,et al. Fabrication of a magnetic porous hydrogel sphere for efficient enrichment of Rb+ and Cs+ from aqueous solution[J]. Chemical Engineering Research and Design,2017,125:214-225. |
APA | Zhu YF.,Zhang Huifang.,Wang WB.,Ye Xiushen.,Wu Zhijian.,...&王爱勤.(2017).Fabrication of a magnetic porous hydrogel sphere for efficient enrichment of Rb+ and Cs+ from aqueous solution.Chemical Engineering Research and Design,125,214-225. |
MLA | Zhu YF,et al."Fabrication of a magnetic porous hydrogel sphere for efficient enrichment of Rb+ and Cs+ from aqueous solution".Chemical Engineering Research and Design 125(2017):214-225. |
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