Photocatalysis Activity and Physicochemical Structure of Titanium Dioxide Co-doped with N and B

摘要

Titanium dioxide co-doped with N and B was prepared by sol-gel method. The photocatalytic activity was evaluated by the photodegradation of methylene blue under visible light. Its physicochemical properties were characterized by means of UV-Vis DRS,XRD,FT-IR,and XPS. The results indicated that N-B-TiO2 has good activity to the photodegradation of MB. Its decolourizing rate of methylene blue solution goesup to 98.4% under the visible light irradiation with 5 h. The doping nitrogen forms N-Ti-O and boron primarily existing in oxide appears in the N-B-TiO2 sample. They response for visible light of TiO2 was also exploited.