Preparation method and application of saccharide-modified activated carbon carrier and catalyst

The invention discloses a preparation method and application of a saccharide-modified activated carbon carrier and a catalyst, and belongs to the technical field of activated carbon modification and the field of catalysts. The preparation method of the saccharide modified activated carbon carrier comprises the following steps: S1, heating a mixture containing activated carbon and water to obtain pretreated activated carbon; s2, adding the pretreated activated carbon into a mixed solution containing saccharides and water, and performing closed impregnation to obtain impregnated activated carbon; and S3, calcining the impregnated activated carbon to obtain the saccharide modified activated carbon. The catalyst prepared by the preparation method has higher microporosity, carbon defect degree and Lewis acid strength; the catalyst has excellent catalytic activity in the reaction of catalyzing carbonylation of methyl nitrite to synthesize dimethyl carbonate, the active metal dispersity of the catalyst is high, and