Abstract
The Sol-gel method is successfully used to prepare high specific surface area TiO(2) (HSTiO(2)). Then, the photodeposition method is used to composite silver particles with HSTiO(2). X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Brunauer-Emmett-Teller, and UV-vis spectroscopy are used to characterize the Ag/HSTiO(2) nanocomposites. It can be concluded that the prepared TiO(2) has a large specific surface area, reaching 125.5 m(2) g(-1). Additionally, the addition of silver particles successfully broadens the photoresponse range from the UV region to the visible light region. In order to evaluate the photocatalytic activity of Ag/HSTiO(2), we conducted the methyl orange degradation test. The results showed that the photocatalytic activity of the sample is significantly higher than that of pure TiO(2).