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Author Zou, Yunling ♦ Tan, Xin ♦ Yu, Tao ♦ Li, Yan ♦ Li, Yimei ♦ Wang, Ru ♦ Xue, Lingqian
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ AQUEOUS SOLUTIONS ♦ CRYSTAL STRUCTURE ♦ ELECTRON MICROSCOPY ♦ HYDROTHERMAL SYNTHESIS ♦ IRRADIATION ♦ METHYLENE BLUE ♦ MORPHOLOGY ♦ NANOSTRUCTURES ♦ PHOTOCATALYSIS ♦ PVP ♦ RAMAN SPECTROSCOPY ♦ SURFACTANTS ♦ TEMPERATURE DEPENDENCE ♦ TITANIUM OXIDES ♦ ULTRAVIOLET RADIATION ♦ X-RAY DIFFRACTION
Abstract Highlights: • Flower-like brookite TiO{sub 2} structures were prepared by hydrothermal method. • PVP not only acted as a dispersant but also stabilized the layered structure. • The resulted brookite TiO{sub 2} showed high photocatalytic activity under UV irradiation. - Abstract: Flower-like brookite TiO{sub 2} nanostructures were controllable prepared by a one-step hydrothermal method by changing experimental conditions, such as hydrothermal temperature, reaction time and the amount of polyvinylpyrrolidone. The photocatalytic activities of the samples were investigated by degradation of methylene blue (MB) in aqueous solution under UV light irradiation. It was found that the formation of brookite TiO{sub 2} nanostructures with various morphologies could be well controlled by the adjustment of hydrothermal temperature, reaction time and the amount of surfactant, and the morphology of the products changed from spindle-like structures to flower-like structures with the increase of hydrothermal temperature, reaction time and the amount of surfactant. The photocatalytic tests indicate that the flower-like brookite TiO{sub 2} nanostructures shows high photocatalytic activity in degradation of methylene blue (MB) under UV light irradiation. The formation mechanism of flower-like brookite TiO{sub 2} nanostructures was also discussed in detail based on the above investigations.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-08-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 80


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