Pore Space Partition in Rigid Metal-Organic Frameworks Containing Organic Vertices for Trace Benzene Adsorption-Reference-Cited by-同舟云学术

Pore Space Partition in Rigid Metal-Organic Frameworks Containing Organic Vertices for Trace Benzene Adsorption

Published:2024-06-14 Issue: Volume: Page:
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Author:

Yang Huajun¹,Zhang Yingying¹,Xue Chaozhuang²,Fang Zhi³,Huang Yexin¹,Li Hui¹,Qi Yuqing¹,Zhu Kai¹,Gan Lei¹,Peng Fang¹,Huang Hongliang⁴

Affiliation:

1. Nanjing Normal University

2. Liaocheng University

3. Tiangong University

4. Tianjin Polytechnic University

Abstract

The physical adsorbents have shown great promise for the removal of volatile organic compounds (VOCs) such as benzene but they still suffer from low uptake and poor selectivity especially when VOCs are present at trace concentrations. In this work, we demonstrate the successful implementation of pore-space-partition (PSP) strategy on rigid NU-1500-type metal-organic frameworks (MOFs) containing organic vertices, which has led to a series of MOFs with near-organic backbones (metal mass fraction as low as 5%) and record trace benzene adsorption. The PSP on rigid acs MOFs here relies on precise size match and symmetry match between the partitioning ligands and the frameworks. NNM-750-Fe, a structure constructed by partitioning NU-1500 with large π-conjugated hexaazaphenalene-based ligand, exhibits significantly enhanced low-pressure benzene capture than NU-1500-Fe, which far exceeds previous records (42%-69% higher) at a wide pressure range (P/P₀ from 0.003 to 0.01). DFT calculations reveal that the hexaazaphenalene core has a higher benzene affinity than the open metal sites in pristine NU-1500.

Publisher

Research Square Platform LLC

Reference50 articles.

1. 1. Furukawa, H., Cordova, K. E., O’Keeffe, M. & Yaghi, O. M. The Chemistry and Applications of Metal-Organic Frameworks. Science 341, 1230444, (2013).

2. 2. O’Keeffe, M. & Yaghi, O. M. Deconstructing the Crystal Structures of Metal-Organic Frameworks and Related Materials into Their Underlying Nets. Chem. Rev. 112, 675–702, (2012).

3. 3. Eddaoudi, M. et al. Modular Chemistry: Secondary Building Units as a Basis for the Design of Highly Porous and Robust Metal-Organic Carboxylate Frameworks. Acc. Chem. Res. 34, 319–330, (2001).

4. 4. Kim, J. et al. Assembly of Metal-Organic Frameworks from Large Organic and Inorganic Secondary Building Units: New Examples and Simplifying Principles for Complex Structures. J. Am. Chem. Soc. 123, 8239–8247, (2001).

5. 5. Sonnauer, A. et al. Giant Pores in a Chromium 2,6-Naphthalenedicarboxylate Open-Framework Structure with MIL-101 Topology. Angew. Chem. Int. Ed. 48, 3791–3794, (2009).