TiO(2) hollow spheres obtained under autogenic pressure at elevated temperature

Li, Kexun, Li, Hongliang, Zhao, Junhua, Zhu, Yingchun and Zhao, Xiu-Song (2009). TiO(2) hollow spheres obtained under autogenic pressure at elevated temperature. In: Multi-Functional Materials and Structures II. 2nd International Conference on Multi-Functional Materials and Structures, Qingdao, China, (525-528). 9-12 October 2009. doi:10.4028/www.scientific.net/AMR.79-82.525


Author Li, Kexun
Li, Hongliang
Zhao, Junhua
Zhu, Yingchun
Zhao, Xiu-Song
Title of paper TiO(2) hollow spheres obtained under autogenic pressure at elevated temperature
Formatted title
TiO2 hollow spheres obtained under autogenic pressure at elevated temperature
Conference name 2nd International Conference on Multi-Functional Materials and Structures
Conference location Qingdao, China
Conference dates 9-12 October 2009
Proceedings title Multi-Functional Materials and Structures II   Check publisher's open access policy
Journal name Advanced Materials Research   Check publisher's open access policy
Place of Publication Pfaffikon, Switzerland
Publisher Scientific.Net
Publication Year 2009
Sub-type Fully published paper
DOI 10.4028/www.scientific.net/AMR.79-82.525
Open Access Status
ISBN 9780878493043
ISSN 1662-8985
1022-6680
Volume 79-82
Start page 525
End page 528
Total pages 4
Language eng
Abstract/Summary Carbon/TiO2 composites were prepared via the reaction under Autogenic Pressure at Elevated Temperature (RAPET) using alkoxides as precursor, and then porous TiO2 hollow spheres were derived after removing the carbon ingredient by calcination at 600°C. The influence of surfactant additives, including the addition ratio and the nature of the surfactants, on the morphology and the structures of the Carbon/TiO2 composites and the derived TiO2 were also studied with scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-Vis diffuse reflectance spectrophotoscopy (DRS) and nitrogen adsorption-desorption measurements. The results revealed that the morphology of the products turned to spherical and then fusiform and the structures turned from hollow to solid with the increasing of surfactant additive. The BET surface area of the hollow TiO2 was modified from 12m2/g to 57m2/g after calcinations. The XRD investigation indicates that the phases of the TiO2 in both the carbon/TiO2 composites and the derived TiO2 hollow spheres are anatase.
Keyword Porous Materials
Hollow Spheres
Rapet
Surfactant
TiO(2)
Shell
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Conference Paper
Collection: School of Chemical Engineering Publications
 
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