Abstract:

In order to expand the optical response of titania into the visible light region，carbon-doped titania powders were prepared by the hydrolysis method and other steps. The prepared samples were then characterized with XRD，XPS and UV-Vis diffuse reflectance spectroscopy. Moreover，the photocatalytic activities of the samples in the visible light region were tested，and the influences of different carbon resource on the photocatalytic activity were investigated. The doping of carbon led to an increase in optical absorption intensity in the visible light region，which result in high visible light photocatalytic activity with carbon doped titania in the decoloration of methyl orange.