Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2012-01-01

Journal: MATERIALS LETTERS

Included Journals: EI、SCIE

Volume: 66

Issue: 1

Page Number: 308-310

ISSN: 0167-577X

Key Words: Solar energy materials; Photocatalytic activity; Spectroscopy

Abstract: Developing photocatalysts with specific morphology promises good opportunities to discover the geometry-dependent properties. Herein, flower-like anatase TiO2 assemblies with dominant {001} facets exposed were successfully synthesized via a simple, economical hydrothermal route with titanium sulfate and hydrofluoric acid. Their surface morphology and structure were investigated by scanning electron microscopy, transmission electron microscopy, selected area electron diffraction. X-ray diffraction, and Brunauer-Emmet-Teller N-2 gas adsorption-desorption isotherms. The optical property and the photo-induced charge carriers of the flower-like TiO2 were studied by UV-vis diffuse reflectance spectroscopy and transient photovoltage technique. The flower-like TiO2 particles exhibited a good photocatalytic activity in degrading rhodamine B. (C) 2011 Elsevier B.V. All rights reserved.