Abstract
Over the past few decades, porous organic polymers (POPs) materials have exhibited great application potential in volatile radioactive iodine capture field for their porosity structures and feasible functional networks. However, the iodine adsorption capacities of POPs are still needed to improve through efficient molecule structure design strategy. Herein, we report a novel nitrogen-rich porous organic polytrazine (HCPOT-In) containing pyridine and indole units was designed and synthesized by a simple one-step Lewis acid-catalyzed Friedel–Crafts reaction of 2,6-di(1H-indol-1-yl)pyridine and 2,4,6-trichloro-1,3,5-triazine. The derived HCPOT-In showed permanent porosity and good stability. Taking advantages of the strong host–guest interaction from the porosity structure, nitrogen-rich skeleton and π-conjugated network, HCPOT-In showed the excellent volatile iodine adsorption capacity up to 4.08 g g−1 (348 K, 1 bar) with high amount of per unit SBET (14.6 wt%) and also great carbon dioxide capture performance of 120 cm3 g−1 (1 bar, 273 K). We hope this report will provide a molecular structure design idea in constructing novel POPs as efficient adsorbent materials applying in environment protection field.
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Acknowledgements
The authors are grateful for the financial support from the Natural Science Foundation of Shandong Province (No. ZR2019PEM004), Doctoral Research Start-up Funding of Jining University (No. 2019BSZX02), Higher Educational Youth Innovation Science and Technology Program of Shandong Province (No. 2020KJC009), Young Innovative Talents Introduction & Cultivation Program for Colleges and Universities of Shandong Province: Innovative Research Team on Optoelectronic Functional Materials.
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KY: Writing—review & editing, Investigation, Supervision, Funding acquisition. LJ: Writing—original draft, Investigation, Conceptualization, Methodology. JZ: Formal analysis. JZ: Data curation, Software.
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Yuan, K., Jiang, L., Zhang, J. et al. Exploration synthesis and study of indol and pyridine based heterocycle porous organic polytriazine for highly efficient iodine capture. J Porous Mater 29, 405–413 (2022). https://doi.org/10.1007/s10934-021-01187-w
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DOI: https://doi.org/10.1007/s10934-021-01187-w