| High performance of phosphonate-functionalized mesoporous silica for u(vi) sorption from aqueous solution | |
| Yuan, Li-Yong1,2; Liu, Ya-Lan1; Shi, Wei-Qun1,2; Lv, Yu-Long1; Lan, Jian-Hui1,2; Zhao, Yu-Liang1,2; Chai, Zhi-Fang1,2 | |
| 刊名 | Dalton transactions
 |
| 2011-07-28 | |
| 卷号 | 40期号:28页码:7446-7453 |
| ISSN号 | 1477-9226 |
| DOI | 10.1039/c1dt10085h |
| 通讯作者 | Shi, wei-qun(shiwq@ihep.ac.cn) |
| 英文摘要 | The renaissance of nuclear energy promotes increasing basic research on the separation and enrichment of nuclear fuel associated radionuclides. herein, we report the first study for developing mesoporous silica functionalized with phosphonate (np10) as a sorbent for u(vi) sorption from aqueous solution. the mesoporous silica was synthesized by co-condensation of diethylphosphatoethyltriethoxysilane (dpts) and tetraethoxysilane (teos), using cationic surfactant cetyltrimethylammonium bromide (ctab) as the template. the synthesized silica nanoparticles were observed to possess a mesoporous structure with a uniform pore diameter of 2.7 nm, and to have good stability and high efficiency for u(vi) sorption from aqueous solution. a maximum sorption capacity of 303 mg g(-1) and fast equilibrium time of 30 min were achieved under near neutral conditions at room temperature. the adsorbed u(vi) can be easily desorbed by using 0.1 mol l(-1) hno(3), and the reclaimed mesoporous silica can be reused with no decrease of sorption capacity. in addition, the preconcentration of u(vi) from a 100 ml aqueous solution using the functionalized mesoporous silica was also studied. the preconcentration factor was found to be as high as 100, suggesting the vast opportunities of this kind of mesoporous silica for the solid-phase extraction and enrichment of u(vi). |
| WOS关键词 | MCM-48 MOLECULAR-SIEVES ; URANIUM ; ADSORPTION ; REMOVAL ; KINETICS ; SEPARATION ; EU(III) ; CARBON ; BEADS ; UO22+ |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Inorganic & Nuclear |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000292987200021 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2176070 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Shi, Wei-Qun |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Nucl Analyt Tech, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Li-Yong,Liu, Ya-Lan,Shi, Wei-Qun,et al. High performance of phosphonate-functionalized mesoporous silica for u(vi) sorption from aqueous solution[J]. Dalton transactions,2011,40(28):7446-7453. |
| APA | Yuan, Li-Yong.,Liu, Ya-Lan.,Shi, Wei-Qun.,Lv, Yu-Long.,Lan, Jian-Hui.,...&Chai, Zhi-Fang.(2011).High performance of phosphonate-functionalized mesoporous silica for u(vi) sorption from aqueous solution.Dalton transactions,40(28),7446-7453. |
| MLA | Yuan, Li-Yong,et al."High performance of phosphonate-functionalized mesoporous silica for u(vi) sorption from aqueous solution".Dalton transactions 40.28(2011):7446-7453. |
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