The　development　of　high　efficient　and　inexpensive　photocatalyst　for　oxidation　of　indoor　gaseous　benzene　is　a　big　challenge.　In　this　paper,　a　simple　compound　containing　only　one　metal　element　named　antimony　oxide　hydrate　(Sb2O5　center　dot　3H(2)O)　is　prepared　by　a　facile　hydrolysis-oxidation　method.　The　photocatalytic　activity　for　oxidation　of　benzene　over　Sb2O5　center　dot　3H(2)O　is　investigated　for　the　first　time.　The　conversion　ratio　and　mineralization　of　benzene　are　35.0%　and　55%　over　Sb2O5　center　dot　3H(2)O,　which　are　3.5　and　5.5　times　higher　than　that　of　P25.　Reactive　oxygen　species,　including　Of　and　center　dot　OH,　are　detected　by　ESR　experiments.　The　large　amount　of　O-2　and　long　lived　center　dot　OH　over　antimony　oxide　hydrate　is　the　main　reason　for　its　good　photocatalytic　activity,　and　it　is　also　proved　that　both　O-2　and　center　dot　OH　are　mainly　origin　from　oxygen　reduction.　We　believe　that　this　energy　saving,　inexpensive　and　high　efficient　photocatalyst　has　potential　industrial　application　value.　(C)　2017　Elsevier　B.V.　All　rights　reserved.