FeMoO4 hollow microspheres as eco-friendly materials with the visible-light activity were prepared from FeNO3 and (NH4)6Mo7O24 through a solvent-thermal method using ethylene glycol and HNO3  mixture as solvents.Crystal structures,compositions and morphologies of the materials obtained were characterized by X-ray diffraction,transimission electron microscope,scanning electron microscope,X-ray photoelectron spectroscopy,Brunauer-Emmett-Teller adsorption isotherm.A possible forming mechanism of FeMoO4 hollow microspheres was proposed that lamellar FeMoO4 was generated and assembled into hollow microspheres on gas templates.FeMoO4 hollow microspheres had good adsorbing-reducing ability for Cr (Ⅵ) under visible light,with the reduction behavior of Cr (Ⅵ) following a first-order kinetics with the rate constant 2.15×10-2 min-1at pH of 2.The results of X-ray diffraction,inductively coupled plasma mass spectrometry and the cycling tests showed that the material was stable and consistently photoactive during use.