Journal article
Synthesis of Superhydrophilic Titanium Oxide Spheres and Flowers
Nanoscience and Nanotechnology Letters, Vol.3(3), pp.407-412
2011
Abstract
The microstructure including crystal phase, morphology and particle size is generally considered to be the primary factor in the design of functional materials, because these elements have unique influence on the physical properties. Although each factor could be well controlled, it is still a big challenge to achieve the complete control on all factors in one system. Here we report a simple hydrothermal method, which can lead to the deliberate control on TiO2 crystal phase and morphology by using different anions in the reaction system. Anatase TiO2 with sphere-like structure and rutile TiO2 with flower-like structure were obtained employing fluorine anion and chlorine anion, respectively. These unique structures exhibit persistent superhydrophilicity without the need of external stimuli, such as the ultraviolet irradiation. Surface roughness and ultraviolet absorption analysis demonstrated that the cooperation of the hierarchical surface and the defects in crystal lattice are considered to be responsible for this superhydrophilic behaviour. This ultimate TiO2 wetting surface may have environmental friendly applications such as self-cleaning coatings, anti-fogging coatings.
Details
- Title
- Synthesis of Superhydrophilic Titanium Oxide Spheres and Flowers
- Authors
- Meinan Liu (Author) - Queensland University of TechnologyCheng Yan (Author) - Queensland University of TechnologyJohn Bell (Author) - Queensland University of TechnologyGeoffrey Will (Author) - Queensland University of Technology
- Publication details
- Nanoscience and Nanotechnology Letters, Vol.3(3), pp.407-412
- Publisher
- American Scientific Publishers
- DOI
- 10.1166/nnl.2011.1181
- ISSN
- 1941-4919
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99737878402621
- Output Type
- Journal article
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- Web Of Science research areas
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
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