| abstract |
The invention relates to a metal cadmium organic framework material (MOF) and a preparation method thereof. The simplified structure formula of MOF is: [Cd 2 (TCPB)(1,4-BIB)(OH)(H 2 O) 2 ] n , wherein H 3 TCPB is 1,3,5-tris(4-carboxyphenoxy)benzene; 1,4-BIB is 1,4-bis-imidazolebenzene. The MOF is prepared by solvothermal method, that is, Cd(NO 3 ) 2 4H 2 O, H 3 TCPB and 1,4-BIB are dissolved in H 2 O/DMF mixed solution at a ratio of 2:1:1. Medium (volume ratio 5:3), DMF is N,N-dimethylformamide, react in a hydrothermal reactor at 160°C for 84 hours; collect colorless strip crystals after cooling to room temperature, wash with distilled water , vacuum dried. The solid-state complex is excited by light with a wavelength of 290nm, and the sample can emit strong fluorescence. The MOF has the ability to adsorb simple iodine in aqueous solution, and the maximum adsorption capacity can reach 56.8 mg g ‑1 , which is a potential iodine adsorption material. |