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In this work,zinc ferrite spinel with different zinc contents (ZnxFe3-xO4) was synthesized by a hydrothermal method and used for removing As(V) in aqueous solution.X-ray diffraction (XRD) results indicated that in the crystal structure of ZnxFe3-xO4,the zinc atoms tended to occupy the octahedral sites for x ＜ 0.6 and diffused into the tetrahedral sites gradually with x ＞ 0.6.The size of ZnxFe3-xO4 crystallites increased with the increasing zinc content.Batch adsorption experiments showed that the adsorption isotherms could be well described by the Langmuir model,while the adsorption kinetics followed the pseudo-second-order kinetic model.Zinc ferrite exhibited the highest adsorption capacity towards As(V) when x =0.6.Study of the mechanism indicated that doping with zinc increased the number of surface hydroxyl groups on ferrite spinel,and thus enhanced the adsorption capacity when x =0.6.This work revealed the effects of doping site and content of metal atoms on the adsorption ability of ferrite spinel towards As(V).