Synthesis and solid characterization of nitrogen and sulfur-doped TiO₂ photocatalysts active under near visible light

详细信息    查看全文

• 作者：Mohamed Ksibi ; Sylvie Rossignol ; Jean-Michel Tatibouë ; t ; Christos Trapalis
• 关键词：N ; S-Doped TiO₂ ; Photocatalyst ; Nanostructured ; Sol– ; gel and decolourisation
• 刊名：Materials Letters
• 出版年：2008
• 出版时间：15 October 2008
• 年：2008
• 卷：62
• 期：26
• 页码：4204-4206
• 全文大小：390 K

文摘

A series of N, S-substituted Titanium (IV) (diisopropoxide) bis (2,4-pentadionate) precursor were synthesized by the sol–gel method. The obtained solids were calcined at 550 °C for two hours to obtain photoactive phases. A thermogravimetric analysis of the solid precipitates shows that crystallization has been almost completed at this value of calcination temperature. The samples were characterized by X-Ray diffraction (XRD), determination of the BET specific surface area and UV–Vis diffuse reflectance spectroscopy. The photocatalytic activity of the obtained catalyst was estimated on a basis of decolouration of Congo red dye under near visible light.