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Mechanical preparation of nano titanium dioxide powder and its optical properties
Institute of Material Science and Engineering, South China University of Technology, Guangzhou.
Institute of Material Science and Engineering, South China University of Technology, Guangzhou.
Institute of Material Science and Engineering, South China University of Technology, Guangzhou.
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2007 (Chinese)In: Journal of the Chinese Ceramic Society, ISSN 0454-5648, Vol. 35, no 7, p. 832-837Article in journal (Refereed) Published
Abstract [en]

mechanical preparation of the nano-sized particles of TiO2 powder by a stirred bead mill was investigated. The particle sizes of the ground products were determined by the acoustic particle sizer, the nitrogen gas adsorption method and a scanning electron microscopy. The diameter of the nano-sized particles, which were obtained after milling for 7 h, is about 50 nm and the specific surface area is up to 70 m2/g. The surface and structure of the samples have been investigated with X-ray diffraction. It is indicated that an intense comminution in the mill leads to a progressive loss in crystallinity of TiO2. The catalytic degradation of methyl orange in water was also studied by a photometer. The results show that the nano-sized particles of TiO2 powder prepared by milling possess photocatalysis effect and are capable of absorption of ultraviolet radiation

Place, publisher, year, edition, pages
2007. Vol. 35, no 7, p. 832-837
National Category
Metallurgy and Metallic Materials
Research subject
Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-10074Local ID: 8d3a6f50-dc47-11df-8b36-000ea68e967bOAI: oai:DiVA.org:ltu-10074DiVA, id: diva2:983014
Note
Godkänd; 2007; 20101020 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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