▎ 摘　　要

The titanate/graphene oxide composites were successfully synthesized by thermal treatment and were characterized by using SEM, XRD and FTIR in detail. The as-synthesized titanate/graphene oxide composites were applied as a new adsorbent to remove radiocobalt (Co-60) from aqueous solution as a function of ionic strength, pH, contact time, temperature and cation ions. The results indicated that the sorption of Co-60 on titanate/graphene oxide composites was strongly dependent on pH and ionic strength. The thermodynamic parameters calculated from the temperature-dependent sorption isotherms indicated that the sorption was a spontaneous and endothermic process. The titanate/graphene oxide composites can be a promising material for the preconcentration of Co-60 and other kinds of radionuclides from aqueous solutions in environmental pollution cleanup in possible application.