▎ 摘　　要

NOVELTY - Preparing solid catalyst comprises taking graphene oxide as a carrier, magnesium nitrate as precursor, dipping, drying, carrying out baking method and loading magnesium oxide on graphene oxide. USE - The solid catalyst is useful for synthesizing dimethyl carbonate (claimed) by transesterification reaction. ADVANTAGE - The method has simple procedure; is economical, environmental friendly; and produces product having long service life, dimethyl carbonate yield of up to 87.1% and selectivity of 99.3%.