| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 41236 | Applied Catalysis A: General | 2011 | 8 Pages |
Nitrogen doped K2Nb4O11 (K2Nb4O11-N) has been prepared by solid state reaction between K2Nb4O11 and urea at 400 °C. K2Nb4O11-N has been characterized by XRD, SEM, XPS and UV/vis diffuse reflectance. The photodegradation of various organic pollutants in water by this material, including Orange G (OG), bisphenol A (BPA) and pentachlorophenol (PCP) have been studied at λ > 330 nm and >399 nm. The results show that the photocatalytic activity of K2Nb4O11-N at >399 nm is higher than those of K2Nb4O11 and Degussa TiO2 P25, indicating the activating effect of nitrogen doping. A mechanism for the photodegradation of organic substrates by K2Nb4O11-N is proposed.
Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (180 K)Download as PowerPoint slideHighlights► A new photocatalyst, K2Nb4O11-N, has been prepared and fully characterized. ► The activity of K2Nb4O11-N for OG, BPA and PCP photodegradation has been evaluated. ► A mechanism for the photodegradation of OG, BPA and PCP by K2Nb4O11-N is proposed.
