Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/724
Title: Morphology-dependent dye-removal mechanism as observed for Anatase-Titania photocatalyst
Authors: Baiju, K V
Shukla, S
Biju, S
Reddy, M L P
Warrier, K G K
Keywords: Hydrothermal
Sol- Gel
Nanocrystalline titania
Nanostructured TIO2
TIO2 Nanotubes
Methylene blue
Dye adsorption
Issue Date: 2009
Publisher: Springer
Citation: Catalysis Letters 131(3-4):663-671;Sep 2009
Abstract: Nanotubes of anatase-titania with very high specific surface-area have been synthesized via hydrothermal using the as-received powder of anatase-titania particles, having lower specific surface-area, as a precursor. Various analytical techniques have been used to characterize the as-received powder and hydrothermally processed nanotubes of anatase-titania for their morphology, size, structure, specific surface-area, pore size distribution, photoabsorption, and photoluminescence properties. The dye adsorption and photocatalytic activity of as-received powder and nanotubes of anatase-titania have been studied using the methylene blue as a model catalytic dye agent. It has been shown that, due to higher specific surface-area, the dye removal using the nanotubes of anatase-titania is primarily via surface-adsorption mechanism in the dark; while, that using the anatase-titania particles is via photocatalytic degradation mechanism under ultraviolet-radiation exposure. Hence, the mechanism of dye removal from an aqueous solution using the anatase-titania appears to be highly morphology-dependent.
ISSN: 1011-372X
Appears in Collections:2009

Files in This Item:
File Description SizeFormat 
2009 _ 00031.pdf
  Restricted Access
553.79 kBAdobe PDFView/Open Request a copy

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.