Preparation method of ZIF-7-8 zeolite imidazate framework material with polyhedral mutual embedded morphology

• Main Authors: LIU YINGXIA, LI NINGNING, ZHANG YANGE, YAN LIANG, ZHANG HAILONG, LYU YAJUN, GUO SHOUJIE, HOU YUXIN, TONG YUPING, LI XINYU, CHEN XI, HUANG LIANG
• Format: Patent
• Language: Chinese; English
• Published: 24.09.2021
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a preparation method of a ZIF-7-8 zeolite imidazate framework material with polyhedral mutual embedded morphology, and the preparation method comprises the following steps: S1, fully dissolving a metal salt in an N, N-dimethylformamide solution at room temperature to prepare a reaction solution A; s2, fully dissolving a ligand salt in a methanol solution at room temperature to prepare a reaction solution B; s3, adding the reaction solution B into the reaction solution A, mixing at room temperature, uniformly dispersing through ultrasonic stirring, and crystallizing under high-temperature and high-pressure conditions; and S4, carrying out centrifugation, cleaning, drying and grinding so as to obtain the ZIF-7-8 material with the polyhedral embedded morphology. The method disclosed by the invention has the advantages of simple process, low cost, adjustable pore size, environmental friendliness and the like, ZIF-7-8 materials with different pore sizes can be obtained by regulating and con