Nano-Sized Nitrogen-Doped Ti-W Mixed Oxides: Preparation and Enhanced Photocatalytic Activities under Visible Light Irradiation
| Periodical | Materials Science Forum (Volume 569) |
|---|---|
| Main Theme | Eco-Materials Processing and Design IX |
| Edited by | Byungsei Jun, Hyungsun Kim, Chanwon Lee, Soo Wohn Lee |
| Pages | 1-4 |
| DOI | 10.4028/www.scientific.net/MSF.569.1 |
| Citation | Yan Fang Shen et al., 2008, Materials Science Forum, 569, 1 |
| Online since | January, 2008 |
| Authors | Yan Fang Shen, Tian Ying Xiong, Jian Ku Shang, Ke Yang |
| Keywords | Chemical Oxygen Demand (COD), Nitrogen Doping, Soft Chemical Method, Ti-W Mixed Oxides |
| Price | US$ 28,- |
Nano-sized nitrogen-doped Ti-W mixed oxides (N-TiO2-x%WO3) were prepared by soft chemical method, and their intrinsic characteristics were investigated using XRD, TEM, N2 adsorption and desorption isotherms, UV-Vis diffuse reflectance spectra and XPS. Experiments on photodegradation of Methylene Blue (MB) under visible light irradiation were carried out to evaluate the photocatalytic abilities of N-TiO2-x%WO3. Chemical Oxygen Demand (COD) analysis was also performed to evaluate the mineralization abilities of N-TiO2-x%WO3. It is shown that the N-TiO2-x%WO3 exhibited higher COD removing rates compared with Degussa P25. The color bleaching rates of N-TiO2-x%WO3 were equal to that of Degussa P25. The enhanced photocatalytic activities were probably related to the strong absorption abilities of the N-TiO2-x%WO3.
