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Indexed by:期刊论文

Date of Publication:2012-01-01

Journal:MATERIALS LETTERS

Included Journals:SCIE、EI

Volume:66

Issue:1

Page Number:308-310

ISSN No.: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.