Synthesis and characterisation of potassium polytitanate for photocatalytic degradation of crystal violet
- Publication Type:
- Journal Article
- Journal of Environmental Sciences (China), 2014, 26 (11), pp. 2348 - 2354
- Issue Date:
Files in This Item:
|Synthesis and characterisation of potassium polytitanate for photocatalytic degradation of crystal violet.pdf||730.83 kB|
Copyright Clearance Process
- Recently Added
- In Progress
- Open Access
This item is open access.
The embargo period expires on 30 Nov 2016
© 2014 . Potassium titanate nanostructures were synthesised by hydrothermal treatment of TiO
2 (P25) in KOH and H 2O 2. As-produced powders were characterised by scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, X-ray diffraction, and nitrogen adsorption-desorption methods. Longitudinally-oriented-wire-like structures with a length up to several micrometres and diameters ranging from 10 to 30nm were obtained. Larger size fibrous nanowires resulting from the hydrothermal treatment showed high affinity in adsorbing crystal violet (CV), which was mainly due to their high surface area. The photocatalytic bleaching of CV solution revealed that the wires are photoactive under ultraviolet light irradiation. Macroporous nanowires are considered as effective adsorbents of CV, capable of photocatalytic degradation, and they can be easily separated from the solution by settling.
Please use this identifier to cite or link to this item: