Journal
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
Volume 27, Issue 5, Pages 857-860Publisher
JOURNAL WUHAN UNIV TECHNOLOGY
DOI: 10.1007/s11595-012-0562-8
Keywords
photocatalysis; titania; deactivation; absorption; crystal violet
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Funding
- National Natural Science Foundation of China(NFSC) [50702041]
- Wuhan Young Scientists Chenguang Plan [20091j0080]
- Fundamental Research Funds for the Central Universities(Wuhan University of Technology) [2012-IV-008]
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The sheet-like nano TiO2 particles were prepared by using hydrothermal method, and were characterized by X-ray diffraction(XRD), infrared spectroscopy(IR), and transmission electron microscopy (TEM). It is found that the nanoparticle sizes and crystallinity increase with the increase of hydrothermal temperature from 150 A degrees C to 160 A degrees C, and then to 180 A degrees C. With the increase of particle sizes, the absorption capacities and photocatalytic abilities of as-prepared TiO2 particles for crystal violet become better and better. The nano TiO2 with big particles is more stable than that with small particles, although its initial photocatalytic activity is relatively lower compared with that of the small particle samples.
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