Photocatalytic degradation of textile dyestuffs using TiO2 nanotubes prepared by sonoelectrochemical method

TiO2 nanotubes were prepared by anodization of Ti plates by conventional electrochemical technique as well as by an emerging sonoelectrochemical technique. Scanning electron miscroscope (SEM) analysis showed that ultrasound assisted anodization yielded more ordered and controllable TiO2 tube banks with higher tube diameter. The photocatalytical activities of TiO2 nanotubes were tested in the photocatalytical degradation of Orange G dye. The results showed that sonoelectrochemically prepared TiO2 tubes exhibited 10% higher photocatalytic performance than the electrochemical prepared ones, and more than 18% higher activity than the other TiO2 samples. (C) 2014 Elsevier B.V. All rights reserved.