▎ 摘　　要

Cobalt phosphide/reduced graphene oxide (Co2P/RGO) nanocomposites were synthesised successfully via a facile in-situ solvothermal method. Co2P nanoparticles with a mean size of 80 nm anchor uniformly and firmly on the surface of RGO nanosheets, which not only avoid the aggregation of Co2P nanoparticles, but also prevent the restacking of RGO nanosheets. Used as a degradation agent, the as-prepared composites exhibit superior adsorption degradation activity for various organic dyes. As an anode material for Li-ion battery, the Co2P/RGO composites also show good electrochemical properties and its initial discharge specific capacity of the as-prepared composites can achieve to 900 mAh/g. The reason might be attributed to the interfacial interaction and the effective combination of Co2P nanoparticles with RGO nanosheets.