NDLI: Investigation of visible light active Ag sensitized mixed phase TiO$_{2}$ photocatalyst for solar energy application

Content Provider	Springer Nature Link
Author	Rajbongshi, B. M. Ramchiary, A. Samdarshi, S. K.
Copyright Year	2014
Abstract	Visible photo-active anatase and mixed phase Ag/TiO$_{2}$ photocatalysts were prepared using sol–gel method with 1.5 wt% Ag concentration. Due to the large band gap, pristine titania (anatase) is mainly active in the UV light and the photoactivity is limited. But in the presence of both anatase (~3.2 eV) and rutile (~3.0 eV) phases in TiO$_{2}$, the catalyst is expected to show enhancement in the photoactivity due to mixed phase junction. The Ag particles are used to act as electron sink and to swiftly transport the photo-generated electrons and, consequently, lessen the recombination rate. The synergistic effect of surface plasmon resonance (SPR) enhanced local field due to Ag particles and the existing mixed phase of TiO$_{2}$ is expected to provide a boost in its photoactivity in the visible region. In the present work the mixed phase Ag/TiO$_{2}$ photocatalyst showed large enhancement in the degradation of methylene blue compared to all the reference systems.
Starting Page	114
Ending Page	121
Page Count	8
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	72
Issue Number	1
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2014-07-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mixed Phase Titanium dioxide Sensitization Visible active photocatalyst Ceramics, Glass, Composites, Natural Methods Inorganic Chemistry Optical and Electronic Materials Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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