▎ 摘　　要

NOVELTY - Production of metal oxide catalyst involves (a) contacting a metal precursor comprising transition metals, with graphene oxide in the presence of a solvent to obtain a graphene oxide supported metal precursor, (b) removing the solvent, and (c) calcining the graphene oxide supported metal precursor in an oxidizing atmosphere to remove the graphene oxide and generate the metal oxide catalyst. USE - Production of metal oxide catalyst e.g. titania catalyst, zinc oxide catalyst, zirconia catalyst, tungsten oxide catalyst and/or iron oxide catalyst used in catalytic reaction such as photocatalytic reduction of water with hole scavenger (all claimed). Can also be used in chemical and energy producing applications. ADVANTAGE - The method efficiently produces metal oxide catalyst in the form of flakes having excellent dispersibility in water suspensions of the metal oxide, high surface area and improved catalytic activity and reduced thickness. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) metal oxide catalyst; and (2) titania catalyst, which comprises titania (A) comprising 85 wt.% or more anatase titania. The component (A) has size of 5-15 nm measured by transmission electron microscope.