Abstract
A series of Ag-modified mesoporous titania (TiO2) particles with various silver contents were prepared by photoreduction. The prepared Ag-TiO2 samples were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), energy dispersive X-ray spectrometry (EDX) and UV-visible diffuse reflectance spectroscopic (DRS) techniques. The visible light photocatalytic property was demonstrated for photodegradation of methylene blue (MB) solution. The results showed that Ag nanoparticles were firmly immobilized on the TiO2 surface, which im- proved electron-hole separation by forming the Schottky barrier at the Ag-TiO2 interface. The diffusion of reflectance UV-Vis spectra were also served as an indication that the Ag-TiO2 samples displayed higher red shifts in comparison with un-modified TiO2 sample. Under visible light, the optimal photoactivity was obtained for the sample m-TiO2-Ag- 2.0wt%. The TiO2-Ag catalyst is likely to be used again for a number of times without any additional treatment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
