Synthesis and photocatalytic activity of ring-like anatase TiO2 with {001} facts exposed. Issue 7 (August 2015)

• Record Type: Journal Article
• Authors: Li, Huali; Liu, Haixia; Zhang, Qing; Wang, Chengfei; Tianduo, Li
• Is Part Of: Ceramics international. Volume 41:Issue 7(2015)
• Page Start: 8717
• Page End: 8722
• Publication Date: 2015-08
• Subjects: Titanium dioxide -- Ring-like nanostructures -- Photocatalyst -- {001} facet; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.03.091
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Developing photocatalysts with specific morphology and good photocatalytic activities promises good opportunities to discover the geometry-dependent properties. In the present work, ring-like anatase TiO2 with dominant {001} facets exposed were successfully synthesized via a one-pot solvothermal process of tetrabutyl titanate and hydrofluoric acid solution at 180 °C for 8 h. We found that hydrofluoric acid plays an important role in the formation of ring-like TiO2 . The morphology and microstructure were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Brunauer–Emmett–Teller N2 gas adsorption–desorption isotherms. The photocatalytic activity was evaluated by photocatalytic oxidation degradation of methylene blue aqueous solution under UV light. Results showed that ring-like TiO2 with {001} facets exposed exhibited an excellent photocatalytic activities due to its unique structure: Nanosheets with hole.