A facile method for rapid preparation of individual titania nanotube powders by a two-step process
- Electronic Materials Research Laboratory, School of Electronic and Information Engineering, Xi'an Jiaotong University, 28 Xianning Road West, Xi'an 710049, Shaanxi (China)
Research highlights: {yields} Rapid and facile preparation of individual titania nanotube powders. {yields} Combination of the electrochemical process and the physical processing. {yields} Post ultrasonic treatment acts as the key factor to obtain the individual TiO{sub 2} NT powders. {yields} Individual TiO{sub 2} NTs powder owns higher photocatalytic activities. -- Abstract: Present study reports a facile method for preparing individual TiO{sub 2} nanotube (NT) powders by a two-step process, which includes that TiO{sub 2} NT bundles are rapidly synthesized by an electro-chemical process in perchlorate-containing electrolyte and then they are disaggregated into individual TiO{sub 2} NT powders under an assistance of ultrasonic oscillation treatment. Morphological and microstructural properties of the individual TiO{sub 2} NT powders are characterized by field emission scanning electron microscopy and transmission electron microscopy. Results indicate that the individual TiO{sub 2} NT powders, which have an outer diameter of about 20 nm and an inner diameter of 10 nm, can be easily obtained from the disaggregation of the TiO{sub 2} NT-bundles by combining the electrochemical process with the physical processing. Furthermore, the individual TiO{sub 2} NT powders exhibit higher photocatalytic activity than the TiO{sub 2} NT-bundle powders.
- OSTI ID:
- 22210021
- Journal Information:
- Materials Research Bulletin, Vol. 46, Issue 3; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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