US 12,251,680 B2
Hierarchical porous defect UiO-66 material and its preparation method
Jinming Luo, Shanghai (CN); Chunyu Lv, Shanghai (CN); Yitao Pan, Shanghai (CN); and Nanwen Zhu, Shanghai (CN)
Assigned to SHANGHAI JIAO TONG UNIVERSITY, Shanghai (CN)
Filed by Shanghai Jiao Tong University, Shanghai (CN)
Filed on Apr. 20, 2024, as Appl. No. 18/641,338.
Claims priority of application No. 202310753551.4 (CN), filed on Jun. 25, 2023.
Prior Publication US 2024/0424476 A1, Dec. 26, 2024
Int. Cl. B01J 20/22 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); C07F 7/00 (2006.01)
CPC B01J 20/226 (2013.01) [B01J 20/2808 (2013.01); B01J 20/28083 (2013.01); B01J 20/3071 (2013.01); B01J 20/3078 (2013.01); B01J 20/3085 (2013.01); C07F 7/003 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for preparing a hierarchical porous defect UiO-66 material, comprising the following steps:
mixing a zirconium ion source, a mixed ligand, an organic acid, N,N-dimethylformamide (DMF), and water to obtain a mixture; and subjecting the mixture to reaction under heating, washing, freeze-drying, and heat treatment in sequence to obtain the hierarchical porous defect UiO-66 material;
wherein hierarchical pores of the hierarchical porous defect UiO-66 material comprise micropores and mesopores; the micropores each have a pore size of not greater than 2 nm; and the mesopores each have a pore size of 2 nm to 4 nm; and
the mixed ligand comprises terephthalic acid and a trisubstituted benzene series; and the trisubstituted benzene series is one or two selected from the group consisting of 2-aminoterephthalic acid and 2-aminoisophthalic acid.