| A simple approach to fabricate granular adsorbent for adsorption of rare elements | |
| 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; Wang AQ(王爱勤)1; Wang AQ(王爱勤)
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| 2015 | |
| Source Publication | International Journal of Biological Macromolecules
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| ISSN | 0141-8130 |
| Volume | 72Pages:410-420 |
| Abstract | A kind of granular hybrid hydrogel was prepared under an ambient temperature in air atmosphere using Fenton reagent as the redox initiator, and its three-dimensional structured polymeric network can be formed by the grafting reaction of acrylic acid (AA) onto hydroxypropyl cellulose (HPC) with attapulgite (APT) as the inorganic component. The resulting granular hybrid hydrogel was marked as HPC-g-PAA/APT and used as the adsorbent to remove the rare earth elements, La(III) and Ce(III). The effects of pH and APT content on the adsorption capacity, as well as the adsorption isotherms and kinetics, were systematically investigated. Finally, the reusability of HPC-g-PAA/APT for La(III) and Ce(III) were evaluated. The results indicate that the adsorption process is pH-independent at pH ≥ 4.0 and can be described using the pseudo-second-order kinetic model. The equilibrium isotherm matches well with the Langmuir model. The adsorbed La(III) and Ce(III) can be desorbed by 0.5 mol/L HCl, with the desorption percentage of 80% for La(III) and Ce(III). After five adsorption–desorption cycles, the adsorption capacity shows a slight decrease (about 15%), implying that the granular hybrid hydrogel can be used as an effective adsorbent for the removal and recovery of La(III) and Ce(III) from aqueous solution. |
| Keyword | Granular Hybrid Hydrogel Hydroxypropyl Cellulose Attapulgite Adsorption Rare Earth |
| Subject Area | 环境材料与生态化学 |
| DOI | 10.1016/j.ijbiomac.2014.08.039 |
| Funding Organization | the National Natural Science Foundation of China (21107116;21377135;21477135);Science and Technology Achievement Transformation Foundation of Jiangsu Province (BA2011100);“863” Project of the Ministry of Science and Technology, China (2013AA032000) |
| Indexed By | SCI |
| If | 3.138 |
| 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/362003/18853 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | Wang AQ(王爱勤) |
| Affiliation | 1.Center of Xuyi Attapulgite Applied Technology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.University of Chinese Academy of Sciences, Beijing 100049, PR China |
| Recommended Citation GB/T 7714 | Zhu YF,Zheng YA,Wang AQ,et al. A simple approach to fabricate granular adsorbent for adsorption of rare elements[J]. International Journal of Biological Macromolecules,2015,72:410-420. |
| APA | Zhu YF,Zheng YA,Wang AQ,&王爱勤.(2015).A simple approach to fabricate granular adsorbent for adsorption of rare elements.International Journal of Biological Macromolecules,72,410-420. |
| MLA | Zhu YF,et al."A simple approach to fabricate granular adsorbent for adsorption of rare elements".International Journal of Biological Macromolecules 72(2015):410-420. |
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| A simple approach to（3620KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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