METHOD FOR PREPARING ETHYLENE GLYCOL BY PHOTOCATALYTIC CONVERSION OF METHANOL

摘要

A method for preparing ethylene glycol by photocatalytic conversion of methanol relating to ethylene glycol. Provided is a method for preparing ethylene glycol by photocatalytic conversion of methanol that features environmental protection, mild reaction conditions, and a high product selectivity. A sulfide semiconductor catalyst or a modified sulfide semiconductor catalyst is added to a solvent, the solvent being a methanol or methanol-water solution. After oxygen in the system is removed, a light source is turned on for a photocatalytic reaction, so as to obtain ethylene glycol. Using a sulfide semiconductor or a modified sulfide semiconductor as a photocatalyst, under the condition of visible light irradiation, methanol can be converted into ethylene glycol after photocatalytic reaction for a certain period of time. The method features environmental protection, mild reaction conditions, and a high product selectivity.