A high efficient sorption of U(VI) from aqueous solution using amino-functionalized SBA-15
文献类型：期刊论文
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| 作者 | Liu YL(刘雅兰); Yuan LY(袁立永) ; Lan JH(蓝建慧); Liu, YL; Yuan, LY; Lan, JH; Li, ZJ; Feng, YX; Zhao, YL; Chai, ZF
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| 刊名 | JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
 ; JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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| 出版日期 | 2012 ; 2012 |
| 卷号 | 292期号:2页码:803-810 |
| 关键词 | Uranium Sorption Mesoporous silica Functionalization Uranium Sorption Mesoporous silica Functionalization |
| DOI | 10.1007/s10967-011-1515-y |
| 英文摘要 | Uranium is one of the most hazardous heavy metal due to its long half-life radioactivity, high toxicity and mobility as aqueous uranyl ion (UO22+) under ordinary environmental conditions. Herein, amino functionalized SBA-15 (APSS) was developed as a rapid and efficient sorbent for removal of U(VI) from the environment. The APSS sample was synthesized by grafting method and was characterized by SEM, NMR, SAXS, and N-2 sorption/desorption isothermal experiments. The sorption of U(VI) by APSS was investigated under different conditions of pH, contact time, initial U(VI) concentration, ionic strength and solid-liquid ratio. The results show that the sorption of U(VI) by APSS is strongly dependent on pH but independent of ionic strength and solid-liquid ratios (m/V). The sorption is ultrafast with an equilibrium time of less than 30 min, and the sorption capacity is as large as 409 mg/g at pH 5.3 +/- 0.1. Besides, the U(VI) sorption by APSS from extremely diluted solution and the desorption of U(VI) from APSS were also studied. It is found that 100 mg of APSS can almost completely remove the U(VI) ions from 4 L aqueous solution with the U(VI) concentration as low as 4.2 ppb and the sorbed U(VI) can be completely desorbed by 0.1 mol/L nitric acid. The results strongly reveal the high performance of the APSS material in the removal and preconcentration of U(VI) from the aqueous solution.; Uranium is one of the most hazardous heavy metal due to its long half-life radioactivity, high toxicity and mobility as aqueous uranyl ion (UO22+) under ordinary environmental conditions. Herein, amino functionalized SBA-15 (APSS) was developed as a rapid and efficient sorbent for removal of U(VI) from the environment. The APSS sample was synthesized by grafting method and was characterized by SEM, NMR, SAXS, and N-2 sorption/desorption isothermal experiments. The sorption of U(VI) by APSS was investigated under different conditions of pH, contact time, initial U(VI) concentration, ionic strength and solid-liquid ratio. The results show that the sorption of U(VI) by APSS is strongly dependent on pH but independent of ionic strength and solid-liquid ratios (m/V). The sorption is ultrafast with an equilibrium time of less than 30 min, and the sorption capacity is as large as 409 mg/g at pH 5.3 +/- 0.1. Besides, the U(VI) sorption by APSS from extremely diluted solution and the desorption of U(VI) from APSS were also studied. It is found that 100 mg of APSS can almost completely remove the U(VI) ions from 4 L aqueous solution with the U(VI) concentration as low as 4.2 ppb and the sorbed U(VI) can be completely desorbed by 0.1 mol/L nitric acid. The results strongly reveal the high performance of the APSS material in the removal and preconcentration of U(VI) from the aqueous solution. |
| 学科主题 | Chemistry; Nuclear Science & Technology ; Chemistry; Nuclear Science & Technology |
| 收录类别 | SCI |
| WOS记录号 | WOS:000305230100042 ; WOS:000305230100042 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224065]  |
| 专题 | 高能物理研究所_院士 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Liu YL,Yuan LY,Lan JH,et al. A high efficient sorption of U(VI) from aqueous solution using amino-functionalized SBA-15, A high efficient sorption of U(VI) from aqueous solution using amino-functionalized SBA-15[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2012, 2012,292, 292(2):803-810, 803-810. |
| APA | 刘雅兰.,袁立永.,蓝建慧.,Liu, YL.,Yuan, LY.,...&石伟群.(2012).A high efficient sorption of U(VI) from aqueous solution using amino-functionalized SBA-15.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,292(2),803-810. |
| MLA | 刘雅兰,et al."A high efficient sorption of U(VI) from aqueous solution using amino-functionalized SBA-15".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 292.2(2012):803-810. |
入库方式： OAI收割
来源：高能物理研究所
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