Phosphate-Based Ultrahigh Molecular Weight Polyethylene Fibers for Efficient Removal of Uranium from Carbonate Solution Containing Fluoride Ions
文献类型：期刊论文
| 作者 | Li, R; Li, YN; Zhang, MJ; Xing, Z; Ma, HJ; Wu, GZ |
| 刊名 | MOLECULES
 |
| 出版日期 | 2018 |
| 卷号 | 23期号:6页码:- |
| 关键词 | AQUEOUS-SOLUTIONS GRAFT-COPOLYMERIZATION SIMULANT SOLUTIONS MESOPOROUS SILICA RADIOACTIVE-WASTE ACID GROUP ADSORPTION RECOVERY SEAWATER EXTRACTION |
| ISSN号 | 1420-3049 |
| DOI | 10.3390/molecules23061245 |
| 文献子类 | 期刊论文 |
| 英文摘要 | This work provides a cost-effective approach for preparing functional polymeric fibers used for removing uranium (U(VI)) from carbonate solution containing NaF. Phosphate-based ultrahigh molecular weight polyethylene (UHMWPE-g-PO4) fibers were developed by grafting of glycidyl methacrylate, and ring-opening reaction using phosphoric acid. Uranium (U(VI)) adsorption capacity of UHMWPE-g-PO4 fibers was dependent on the density of phosphate groups (D-PO, mmol.g(-1)). UHMWPE-g-PO4 fibers with a DPO of 2.01 mmol.g(-1) removed 99.5% of U(VI) from a Na2CO3 solution without the presence of NaF. In addition, when NaF concentration was 3 g.L-1, 150 times larger than that of U(VI), the U(VI) removal ratio was still able to reach 92%. The adsorption process was proved to follow pseudo-second-order kinetics and Langmuir isotherm model. The experimental maximum U(VI) adsorption capacity (Q(max)) of UHMWPE-g-PO4 fibers reached 110.7 mg.g(-1), which is close to the calculated Q(max) (117.1 mg.g(-1)) by Langmuir equation. Compared to F-, Cl-, NO3-, and SO42- did not influence U(VI) removal ratio, but, H2PO4- and CO32- significantly reduced U(VI) removal ratio in the order of F- > H2PO4- > CO32-. Cyclic U(VI) sorption-desorption tests suggested that UHMWPE-g-PO4 fibers were reusable. These results support that UHMWPE-g-PO4 fibers can efficiently remove U(VI) from carbonate solutions containing NaF. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31058]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Shanghai Univ, Coll Sci, Dept Chem, Shanghai 200444, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, R,Li, YN,Zhang, MJ,et al. Phosphate-Based Ultrahigh Molecular Weight Polyethylene Fibers for Efficient Removal of Uranium from Carbonate Solution Containing Fluoride Ions[J]. MOLECULES,2018,23(6):-. |
| APA | Li, R,Li, YN,Zhang, MJ,Xing, Z,Ma, HJ,&Wu, GZ.(2018).Phosphate-Based Ultrahigh Molecular Weight Polyethylene Fibers for Efficient Removal of Uranium from Carbonate Solution Containing Fluoride Ions.MOLECULES,23(6),-. |
| MLA | Li, R,et al."Phosphate-Based Ultrahigh Molecular Weight Polyethylene Fibers for Efficient Removal of Uranium from Carbonate Solution Containing Fluoride Ions".MOLECULES 23.6(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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