Direct Separation of <i>para</i>-Xylene from Xylene Isomers by a Zinc Bipyrazolate Framework
Separation of xylene isomers is an important challenge for the chemical industry. Here, we report a new zinc bipyrazolate framework MAF-70 for the separation of xylene isomers, which contains square pore channels of 8.7× 8.7 Å<sup>2</sup>. MAF-70 exhibits a rare adsorption preference of <i>ortho</i>-xylene (<i>o</i>X) > <i>meta</i>-xylene (<i>m</i>X) > <i>para</i>-xylene (<i>p</i>X) with high selectivity for <i>o</i>X/<i>p</i>X and <i>m</i>X/<i>p</i>X (12.0 and 4.0, respectively), facilitating direct purification of <i>p</i>X (99.1+% purity) from a xylenes mixture, which is validated by column separation experiments. Modeling study indicates that the restricted diffusion of <i>p</i>X accounts for such separation.
Authors
- Rui‐Biao Lin
- Xiyu Song (ORCID: https://orcid.org/0000-0002-0208-8259)
- Jie‐Peng Zhang (ORCID: https://orcid.org/0000-0002-2614-2774)
- Hao Zhuo (ORCID: https://orcid.org/0009-0008-1290-0918)
- Xiao‐Ming Chen (ORCID: https://orcid.org/0000-0002-3353-7918)
- Wenbin Li (ORCID: https://orcid.org/0000-0001-7638-4395)
- Xiao‐Feng Zhong (ORCID: https://orcid.org/0000-0002-5639-2483)
- Ming Xue (ORCID: https://orcid.org/0000-0002-5011-3842)
- Jiaqi He (ORCID: https://orcid.org/0000-0003-2276-3298)
Institutions
- State Key Laboratory of Synthetic Chemistry (CN)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-07-16
- DOI
- https://doi.org/10.1021/acs.inorgchem.5c02625
- Primary Topic
- Metal-Organic Frameworks: Synthesis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00