In　this　study,　ZnO　nanoparticles　co-doped　with　Fe3+　and　Eu3+　were　prepared　by　a　facile　co-precipitation　method.　The　structure　and　morphology　of　the　as-prepared　nanoparticles　were　characterized　by　X-ray　diffraction　(XRD),　scanning　electron　microscopy　(SEM)　and　diffuse　reflectance　absorption　spectra,　respectively.　The　photocatalytic　activities　of　the　prepared　catalysts　were　evaluated　by　photocatalytic　degradation　of　methyl　orange　in　aqueous　solution　with　solar　light　irradiation.　The　co-doped　Fe3+　and　Eu3+　showed　a　synergistic　effect,　which　significantly　increased　the　photocatalytic　activity　of　ZnO.　The　influences　of　calcination　time,　photocatalytic　reaction　temperature　and　catalyst　loading　on　the　photocatalytic　activity　of　the　catalyst　were　also　investigated.　It　was　found　that　there　were　an　optimum　photocatalytic　reaction　temperature　and　an　optimum　catalyst　loading　for　high　photocatalytic　efficiency,　and　the　photocatalytic　efficiency　decreased　with　increase　in　calcination　time.　The　results　of　this　study　demonstrate　that　the　as-prepared　product　of　Eu3+/Fe3+/ZnO　is　a　promising　photocatalyst　for　solar　assisted　degradation　of　organic　pollutions.