Highly Efficient I<sub>2</sub> Sorption, CO<sub>2</sub> Capture, and Catalytic Conversion by Introducing Nitrogen Donor Sites in a Microporous Co(II)-Based Metal–Organic Framework
Zhenhua Guo, Yindi Zhang, Qianqian Wang, Yao Wang, Yao Wang, Peng-Feng Zhang, Wen‐Yan Zhang, Guo‐Ping Yang, Yao-Yu Wang, Yao-Yu Wang
Abstract
Recently, the development of porous absorbents for efficient CO2 and I2 capture has attracted considerable attention because of severe global climate change and environmental issues with the nuclear energy. Hence, a unique porous metal–organic framework (MOF), {[Co(L)]·DMF·2H2O}n (1, DMF = N,N-dimethylformamide) with uncoordinated N atoms was rationally constructed via using a heterofunctional 4,6-bis(4′-carboxyphenyl)pyrimidine (H2L) linker. Interestingly, 1 exhibits exceptional properties for I2 sorption, CO2 capture, and catalytic conversion. Particularly, I2 can be efficiently removed in both vapor and solution forms, and the adsorption amount can reach 676.25 and 345.28 mg g–1, respectively. Furthermore, complex 1 displays high adsorption capacity for CO2 (53.78 cm3 g–1, 273 K). Consequently, 1 is expected to be a promising and practical material for environmental purification due to its excellent adsorption properties.