ABSTRACT Combined template method with sol-gel method to make the mixed solution including polystyrene microsphere emulsion, TiO2 sol and NH3·H2O aging at room temperature. Annealing at 500 centigrade for 2… Click to show full abstract
ABSTRACT Combined template method with sol-gel method to make the mixed solution including polystyrene microsphere emulsion, TiO2 sol and NH3·H2O aging at room temperature. Annealing at 500 centigrade for 2 hours on mesoporous TiO2 nano material doped with nitrogen. Wrapped Ag nanoparticles on the surface of mesoporous TiO2 nano material through redox reaction. The morphology and optical porosities were characterized by Scanning electron microscope (SEM), X-ray diffraction (XRD), BET tester and Surface enhanced Raman scattering (SERS). The results showed this material has excellent surface enhanced Raman effect, optical absorption effect and also has a great specific surface area.
               
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