Effect of H2O/DMF mixed solvents on formation of MIL-100(Fe) and dye adsorption
文献类型：期刊论文
| 作者 | Du, Meiling1; Xu, Guoli1; Zhang, Jiabao1; Li, Tao1; Guan, Yueping1; Guo, Chen2 |
| 刊名 | Journal of Solid State Chemistry
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 312 |
| 关键词 | Aromatic compounds - Hematite - Mass transfer - Metal ions - Nanotechnology - Organic solvents - Platelets |
| ISSN号 | 224596 |
| DOI | 10.1016/j.jssc.2022.123248 |
| 英文摘要 | MIL-100(Fe) with microporous structures is often synthesized under conventional hydrothermal conditions using iron ion and trimesic acid. The effect of H2O/dimethylformamide (DMF) mixtures, with variable H2O volume ratios, on the formation of MIL-100(Fe) was investigated under solvothermal conditions. Pure octahedral MIL-100(Fe) could only be formed in neat H2O or DMF. In most cases, the same reaction in mixed H2O/DMF solvents afforded goethite. When a small volume of H2O was used, morphology resembled coexisting octahedra of MIL-100(Fe) and hexagonal platelets of goethite. A subsequent increase in the H2O content yielded pure hexagonal platelets of goethite and then hexagonal bipyramidal structures of hematite. The surface area and pore volume of MIL-100(Fe) were higher than those of goethite. Dye adsorption tests revealed that 80% of methylene blue (MB) was adsorbed on MIL-100(Fe), synthesized in pure DMF, within 5 min, whereas only approximately 26% was adsorbed on MIL-100(Fe) synthesized in pure H2O. This can be attributed to the nanoscale hierarchically porous structures with macroporosity in the DMF-synthesized MIL-100(Fe) and enhanced fast diffusion and mass transfer of dye, which demonstrates its potential as an adsorbent for dye removal. Thus, this study provides a new option of solvent for the formation of nanoscale hierarchically porous MIL-100(Fe) with improved performance in various practical applications. 漏 2022 |
| 学科主题 | Morphology |
| 项目编号 | The authors thank the National Natural Science Foundation of China Grants NSFC 21978303 for financial support. |
| 出版者 | Academic Press Inc. |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61195]  |
| 作者单位 | 1.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing; 100083, China 2.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Du, Meiling,Xu, Guoli,Zhang, Jiabao,et al. Effect of H2O/DMF mixed solvents on formation of MIL-100(Fe) and dye adsorption[J]. Journal of Solid State Chemistry,2022,312. |
| APA | Du, Meiling,Xu, Guoli,Zhang, Jiabao,Li, Tao,Guan, Yueping,&Guo, Chen.(2022).Effect of H2O/DMF mixed solvents on formation of MIL-100(Fe) and dye adsorption.Journal of Solid State Chemistry,312. |
| MLA | Du, Meiling,et al."Effect of H2O/DMF mixed solvents on formation of MIL-100(Fe) and dye adsorption".Journal of Solid State Chemistry 312(2022). |
入库方式： OAI收割
来源：过程工程研究所
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