▎ 摘　　要

NOVELTY - Complex comprises a matrix in which graphene oxide (GO) and chitosan (CS) are chemically bonded, and prussian blue (PB) particles fixed on or under the matrix. USE - Complex for removing radioactive cesium. ADVANTAGE - The complex is structurally stable and has excellent adsorption performance for cesium ions. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing complex for removing radioactive cesium, which involves preparing a matrix dispersion by adding chitosan to the graphene oxide dispersion, and forming prussian blue particles by adding iron ions and ferrocyanide salts to the prepared matrix dispersion.