| Ammonium molybdophosphate metal-organic framework composite as an effective adsorbent for capture of Rb+ and Cs+ from aqueous solution | |
Wang, Yanping; Li, Kexin ; Fang, Dezhen; Ye, Xiushen; Liu, Haining; Tan, Xiaoli; Li, Quan; Li, Jun; Wu, Zhijian
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| 2021-11 | |
| 发表期刊 | JOURNAL OF SOLID STATE CHEMISTRY
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| ISSN | 0022-4596 |
| 卷号 | 306 |
| 摘要 | A new composite adsorbent (AMP@MOF-76(Sm)) grafted ammonium molybdophosphate onto MOF-76(Sm) was synthesized via a solvothermal method and well-characterized by SEM-EDS, particle size analysis, N-2 adsorption-desorption isotherms, TG, FT-IR, XRD and XPS analysis. The adsorption behaviors of Rb+ and Cs+ on synthesized AMP@MOF-76(Sm) were investigated depending on the parameters of solution pH, ionic strength, contact time, ion concentration and temperature. The adsorbent can adsorb Rb+ and Cs+ from the solution when the solution pH ranged from 4.0 to 10.0 and the coexisted ion (Na+) has little effect on the adsorption amounts of both Rb+ and Cs+. The adsorption kinetic data fitted well with pseudo-second order kinetic models. The adsorption equilibrium of Rb+ and Cs+ on AMP@MOF-76(Sm) is better explained by the Langmuir isotherm model and the maximum adsorption amounts for Rb+ and Cs+ are 0.490 mmol g(-1) and 0.434 mmol g(-1), respectively. Furthermore, the AMP@MOF-76(Sm) could be easily reused at least four times using 3.0 mmol L-1 ammonia nitrate as the eluent. The mechanism of the adsorption of Rb+ and Cs+ is proposed to be a combination of electrostatic attraction and ion exchange mechanism. |
| DOI | 10.1016/j.jssc.2021.122767 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34584 |
| 专题 | 盐湖资源与化学实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Yanping,Li, Kexin,Fang, Dezhen,et al. Ammonium molybdophosphate metal-organic framework composite as an effective adsorbent for capture of Rb+ and Cs+ from aqueous solution[J]. JOURNAL OF SOLID STATE CHEMISTRY,2021,306. |
| APA | Wang, Yanping.,Li, Kexin.,Fang, Dezhen.,Ye, Xiushen.,Liu, Haining.,...&Wu, Zhijian.(2021).Ammonium molybdophosphate metal-organic framework composite as an effective adsorbent for capture of Rb+ and Cs+ from aqueous solution.JOURNAL OF SOLID STATE CHEMISTRY,306. |
| MLA | Wang, Yanping,et al."Ammonium molybdophosphate metal-organic framework composite as an effective adsorbent for capture of Rb+ and Cs+ from aqueous solution".JOURNAL OF SOLID STATE CHEMISTRY 306(2021). |
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| Ammonium molybdophos（2941KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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