▎ 摘　　要

NOVELTY - Preparing furandicarboxylic acid using furfural involves preparing transition metal monoatomic catalyst by light method, dispersing graphene in water to obtain graphene dispersion liquid as catalyst load. The ratio of transition metal and graphene is 1.0-1.5. The transition metal salt aqueous solution is added to the graphene dispersion liquid, placed under light source to irradiate stirring reaction for 3-6 hours. The reaction product is frozen until solid is formed, and then freeze-dried in vaccum to obtain transition metal monoatomic catalyst. The transition metal monoatomic catalyst is added to the autoclave equipped with furfural, and carbon dioxide and oxygen are introduced for catalytic oxidation reaction. The ratio of oxygen and carbon dioxide is 2:1. The mass ratio of transition metal monoatomic catalyst to furfural is 5-10%. The reaction temperature is 90-120 degrees C, pressure is 0.1-1.0 megapascal, and reaction is stirred for 15-20 hours, after reaction is completed. USE - Method for preparing furandicarboxylic acid using furfural. ADVANTAGE - The method enables to prepare furandicarboxylic acid using furfural that has characteristics of simple process, mild conditions, environmental friendliness, high yield. DETAILED DESCRIPTION - Preparing furandicarboxylic acid using furfural involves preparing transition metal monoatomic catalyst by light method, dispersing graphene in water to obtain graphene dispersion liquid as catalyst load. The ratio of transition metal and graphene is 1.0-1.5. The transition metal salt aqueous solution is added to the graphene dispersion liquid, placed under light source to irradiate stirring reaction for 3-6 hours. The reaction product is frozen until solid is formed, and then freeze-dried in vaccum to obtain transition metal monoatomic catalyst. The transition metal monoatomic catalyst is added to the autoclave equipped with furfural, and carbon dioxide and oxygen are introduced for catalytic oxidation reaction. The ratio of oxygen and carbon dioxide is 2:1. The mass ratio of transition metal monoatomic catalyst to furfural is 5-10%. The reaction temperature is 90-120 degrees C, pressure is 0.1-1.0 megapascal, and reaction is stirred for 15-20 hours, after reaction is completed. The solvent is added to dissolve the reaction product. The resulting reaction solution is filtered, and filtrate is rectified under reduced pressure to obtain furandicarboxylic acid.