▎ 摘　　要

NOVELTY - Preparing graphene oxide three-dimensional self-assembly body, comprises dissolving a noble metal compound and a reducing substrate into a suspension of graphene oxide to obtain a mixed liquid, performing water heating treatment using the mixed liquid at 80-220 degrees C for 1-30 hours, where the reducing substrate is citric acid and/or polyethylene glycol, and the mass ratio of the reducing substrate, the noble metal compound and graphene oxide in the mixed liquid are (0-400):(0-10):1. USE - The graphene oxide three-dimensional self-assembly body is useful as a catalyst in the noble metal catalyzing reaction. ADVANTAGE - The self-assembly body comprises noble metal nanometer particle, which can be uniformly dispersed on the graphene oxide sheet, so that it has good application as a catalyst. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene oxide three-dimensional self-assembly body prepared by the above method.