Linking nitrogen-rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability
By linking a nitrogen-rich organic cage with linear connectors, three cage-based isoreticular covalent organic frameworks, i.e., Cage-IRCOF-1, Cage-IRCOF-2, Cage-IRCOF-3, were successfully designed and synthesized by Schiff-base polycondensation reactions. The structure determination and simulations...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/170233 |
| _version_ | 1826119155961561088 |
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| author | Cheng, Ke Li, Hailian Li, Zuyong Li, Pei-Zhou Zhao, Yanli |
| author2 | School of Chemistry, Chemical Engineering and Biotechnology |
| author_facet | School of Chemistry, Chemical Engineering and Biotechnology Cheng, Ke Li, Hailian Li, Zuyong Li, Pei-Zhou Zhao, Yanli |
| author_sort | Cheng, Ke |
| collection | NTU |
| description | By linking a nitrogen-rich organic cage with linear connectors, three cage-based isoreticular covalent organic frameworks, i.e., Cage-IRCOF-1, Cage-IRCOF-2, Cage-IRCOF-3, were successfully designed and synthesized by Schiff-base polycondensation reactions. The structure determination and simulations from powder X-ray diffraction measurements indicated that these COFs have high crystallinity derived from the packing of covalently linked two-dimensional isoreticular layer frameworks. As nitrogen-rich porous materials, iodine capture studies were carried out, proving that they displayed obvious enhancements in iodine uptake as compared with the pristine cage itself. In particular, Cage-IRCOF-1 displayed an iodine adsorption capacity of 262 wt %, which is 12 times higher than the solid packed from the cage itself. Spectral studies revealed that there were strong interactions between the nitrogen-rich groups and the adsorbed iodine species. This work demonstrated that linking the discrete organic cages into reticular crystalline frameworks, effective adsorbents can be fabricated for targeted applications. |
| first_indexed | 2024-10-01T04:55:29Z |
| format | Journal Article |
| id | ntu-10356/170233 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:55:29Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1702332023-09-04T05:07:29Z Linking nitrogen-rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability Cheng, Ke Li, Hailian Li, Zuyong Li, Pei-Zhou Zhao, Yanli School of Chemistry, Chemical Engineering and Biotechnology Science::Chemistry Adsorption Capability Covalent Organic Frameworks By linking a nitrogen-rich organic cage with linear connectors, three cage-based isoreticular covalent organic frameworks, i.e., Cage-IRCOF-1, Cage-IRCOF-2, Cage-IRCOF-3, were successfully designed and synthesized by Schiff-base polycondensation reactions. The structure determination and simulations from powder X-ray diffraction measurements indicated that these COFs have high crystallinity derived from the packing of covalently linked two-dimensional isoreticular layer frameworks. As nitrogen-rich porous materials, iodine capture studies were carried out, proving that they displayed obvious enhancements in iodine uptake as compared with the pristine cage itself. In particular, Cage-IRCOF-1 displayed an iodine adsorption capacity of 262 wt %, which is 12 times higher than the solid packed from the cage itself. Spectral studies revealed that there were strong interactions between the nitrogen-rich groups and the adsorbed iodine species. This work demonstrated that linking the discrete organic cages into reticular crystalline frameworks, effective adsorbents can be fabricated for targeted applications. Ministry of Education (MOE) This work was supported by the “Qilu Young Talent Scholar” program (11190088963032) of Shandong University and the Ministry of Education Singapore under its Academic Research Funds(RG3/21and MOET2EP10120-0003). 2023-09-04T05:07:28Z 2023-09-04T05:07:28Z 2023 Journal Article Cheng, K., Li, H., Li, Z., Li, P. & Zhao, Y. (2023). Linking nitrogen-rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability. ACS Materials Letters, 5(6), 1546-1555. https://dx.doi.org/10.1021/acsmaterialslett.3c00213 2639-4979 https://hdl.handle.net/10356/170233 10.1021/acsmaterialslett.3c00213 2-s2.0-85156258660 6 5 1546 1555 en RG3/21 MOET2EP10120-0003 ACS Materials Letters © 2023 American Chemical Society. All rights reserved. |
| spellingShingle | Science::Chemistry Adsorption Capability Covalent Organic Frameworks Cheng, Ke Li, Hailian Li, Zuyong Li, Pei-Zhou Zhao, Yanli Linking nitrogen-rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability |
| title | Linking nitrogen-rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability |
| title_full | Linking nitrogen-rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability |
| title_fullStr | Linking nitrogen-rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability |
| title_full_unstemmed | Linking nitrogen-rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability |
| title_short | Linking nitrogen-rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability |
| title_sort | linking nitrogen rich organic cages into isoreticular covalent organic frameworks for enhancing iodine adsorption capability |
| topic | Science::Chemistry Adsorption Capability Covalent Organic Frameworks |
| url | https://hdl.handle.net/10356/170233 |
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