▎ 摘　　要

NOVELTY - Producing graphene oxide from natural resources, where (a) the precursor is the root powder of the plant Chrysopogon zizanioides, (b), the root powder is taken in a closed container for reduction reaction under oxygen-free conditions and kept for carbonization reaction through slow heating rate of pyrolysis method at 300° C for 6 hours, after which graphene oxide is obtained. USE - The method is useful for producing smart two-dimensional graphene oxide from natural resources. ADVANTAGE - The method smart two-dimensional graphene oxide with high atom economy and an environmentally friendly method.