Preparation and Characterizations of Graphene Oxide/Titanium Dioxide Composite Materials

Graphene oxide/titanium dioxide（TiO₂-GO） composites were prepared by hydrothermal synthesis method using graphene oxide and industrial titanium liquid as raw materials.The microstructure,functional groups and phases,photocatalytic properties of the composites were analyzed by scanning electron microscope（SEM）,infrared spectroscopy（IR） and X-ray diffraction（XRD）,ultraviolet visible spectroscopy（UV-vis）,respectively.The results show that the addition of graphene oxide changes the shape of titanium dioxide,from spherical particles to porous spherical particles based on lamellar structure.Addition of graphene oxide is beneficial to the formation of anatase titanium dioxide.The photocatalytic properties of the composites increase with increase of the graphene oxide addition in a certain range,indicating that the addition of graphene oxide favors the light absorption.