Contiguous layer based metal–organic framework with conjugated π-electron ligand for high iodine capture

Autor:	Guanghua Li, Yunling Liu, Tong Xu, Jiantang Li, Mingwei Jia
Rok vydání:	2021
Předmět:	Inorganic Chemistry chemistry.chemical_classification chemistry.chemical_compound Adsorption Cyclohexane chemistry Ligand Inorganic chemistry Sorption Metal-organic framework Absorption (chemistry) Counterion Conjugated system
Zdroj:	Dalton Transactions. 50:13096-13102
ISSN:	1477-9234 1477-9226
DOI:	10.1039/d1dt00947h
Popis:	Herein, a novel 3-dimensional (3D) Cu(II) metal–organic framework (MOF), [Cu3(μ2-O)2(p-tr2Ph)2(HCOO)][NO3]·3DMF·3H2O (compound 1), which is constructed by directly interlocking regionalized hollow two-dimensional (2D) layers, has been conceived and solvothermally synthesized. Such a distinctive regionalized pore system effectively maintains the uniformity of the pore structure, isolates the counterions and bridging ligands in the partition layer, and endows compound 1 with high porosity. In consequence, compound 1 exhibits excellent adsorption ability of iodine in cyclohexane. The removal efficiency in cyclohexane solution (0.01 mol L−1) can reach up to 80% in 8 min, and the absorption ability towards iodine can reach about 1.15 g g−1. Moreover, iodine can also be controllably released in ethanol. The release rate was up to 4 × 10−5 mol L−1 min−1. Furthermore, compound 1 also showed prominent recyclability due to the high stability, and the maximum sorption amount could be retained after 3 cycles. This study paves a new way towards opening up MOFs’ potential application in capturing radioactive iodine to protect the environment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6908cfd52193159fa11374d5c5be9a50 https://doi.org/10.1039/d1dt00947h Zobrazit plný text záznamu