Synthesis and characterization of Cr³⁺ doped TiO₂ nanometric powders

详细信息    查看全文

• 作者：Marija Prekajski^a ; ^{prekajski@vinca.rs" class="auth_mail" title="E-mail the corresponding author} ; Aleksandra Zarubica^b ; Biljana Babić^b ; Bojan Jokić^c ; Jelena Pantić^a ; Jelena Luković^a ; Branko Matović^a
• 关键词：Nanopowders ; D. TiO2 ; XRPD ; SEM ; Photocatalysis
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：42
• 期：1
• 页码：1862-1869
• 全文大小：1205 K

文摘

Simple route was used for synthesis of nanostructured titania samples doped with 3 and 6 mol% of Cr³⁺. Titanium(IV)-isopropoxide and water were used as starting materials and as an agents for controlling hydrolysis and condensation reactions. The phase evolution of titania (TiO₂) was followed by calcination at 400, 600 and 800 °C. The synthesized powders were examined by field emission scanning electron microscopy (FESEM), and X-ray diffraction (XRD). Single-phase anatase was obtained at low temperature (400 °C) in all cases. The photocatalytic activity of TiO₂ doped nanopowders was evaluated by the photocatalytic degradation of crystal violet in aqueous solution. The present study indicates that this simple synthesis method can be an effective route to produce efficient photoactive doped anatase nanopowders.