Present study reports a facile method for preparing individual TiO(2) nanotube (NT) powders by a two-step process, which includes that TiO(2) NT bundles are rapidly synthesized by an electro-chemical process in perchlorate-containing electrolyte and then they are disaggregated into individual TiO(2) NT powders under an assistance of ultrasonic oscillation treatment. Morphological and microstructural properties of the individual TiO(2) NT powders are characterized by field emission scanning electron microscopy and transmission electron microscopy. Results indicate that the individual TiO(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(2) NT-bundles by combining the electrochemical process with the physical processing. Furthermore, the individual TiO(2) NT powders exhibit higher photocatalytic activity than the TiO(2) NT-bundle powders. (C) 2010 Elsevier Ltd. All rights reserved.