Carboxyl-functionalized covalent organic framework/amino-functionalized biochar composite material as well as preparation method and application thereof

• Main Authors: LIN SHANNA, CAI CHAO, HOU YANWEI, FAN JIAJUN, ZHANG YOUCHI
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to the field of heavy metal pollution treatment, in particular to a carboxyl functionalized covalent organic framework/amino functionalized biochar composite material as well as a preparation method and application thereof. The method comprises the following steps: dissolving amino-functionalized charcoal and trialdehyde phloroglucinol in N, N-dimethylacetamide and 1, 4-dioxane, and stirring to obtain a mixed solution; 4, 4 '-diamino-[1, 1'-biphenyl]-2, 2 '-dicarboxylic acid is added into the mixed solution, then a catalyst is added, the mixture is placed in a reaction kettle for a sealed reaction, the reaction kettle is cooled to the room temperature, then washing and vacuum drying are carried out, finally, grinding and crushing are carried out, screening is carried out through a screen, and the carboxyl functionalized covalent organic framework/amino functionalized biochar composite material is obtained. The carboxyl-functionalized covalent organic framework/amino-functionalized biocha