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论文类型：期刊论文

发表时间：2012-01-01

发表刊物：MATERIALS LETTERS

收录刊物：SCIE、EI

卷号：66

期号：1

页面范围：308-310

ISSN号：0167-577X

关键字：Solar energy materials; Photocatalytic activity; Spectroscopy

摘要：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.