期刊
NANOTECHNOLOGY
卷 26, 期 36, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/26/36/364001
关键词
TiO2; atomic layer deposition; photocatalysis
资金
- Natural Science Foundation of China [51322201, 51102049]
- Project Based Personnel Exchange Program
- Specialized Research Fund for the Doctoral Program of Higher Education [201100711200095]
- DAAD
- CSC
- Science and Technology Commission of Shanghai Municipality [12520706300, 12PJ1400500]
- Key Laboratory of Inorganic Coating Materials
- Chinese Academy of Sciences
A titanium dioxide (TiO2) interconnected porous structure has been fabricated by means of atomic layer deposition of TiO2 onto a reticular sponge template. The obtained freestanding TiO2 with large surface area can be easily taken out of the water to solve a complex separation procedure. A compact and conformal nanocoating was evidenced by morphologic characterization. A phase transition, as well as production of oxygen vacancies with increasing annealing temperature, was detected by x-ray diffraction and x-ray photoelectron spectroscopy, respectively. The photocatalytic experimental results demonstrated that the powder with appropriate annealing treatment possessed excellent photocatalytic ability due to the co-action of high surface area, oxygen vacancies and the optimal crystal structure.
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