@article { ISI:000263070700020,
	title = {Enhanced solar-radiation induced photocatalytic activity of surface-modified nanocrystalline anatase-titania},
	journal = {Catalysis Letters},
	volume = {128},
	number = {1-2},
	year = {2009},
	month = {MAR},
	pages = {137-143},
	publisher = {SPRINGER},
	address = {233 SPRING ST, NEW YORK, NY 10013 USA},
	abstract = {<p>Sol-gel derived pure nanocrystalline (similar to 20-30 nm) anatase-titania has been surface-modified by depositing silver(I) oxide and silver (predominantly the former) via UV-reduction process. The pure and surface-modified nanocrystalline anatase-titania have been characterized using different analytical techniques for determining the average nanocrystallite size, phase-contents, surface-chemistry, as well as the absorption and photoluminescence characteristics. It is demonstrated that, the latter exhibits an enhanced solar-radiation induced photocatalytic activity as compared to that of the former as a result of the absorption in the visible-region and enhanced photo-induced e(-)/h(+) life-time, both caused by the surface-deposition of silver(I) oxide and silver.</p>},
	keywords = {Nanocrystalline, Photocatalysis, Silver, sol-gel, titania, UV-reduction},
	issn = {1011-372X},
	doi = {10.1007/s10562-008-9704-1},
	author = {Priya, R. and Baiju, K. V. and Shukla, S. and Biju, S. and Reddy, M. L. P. and Patil, K. R. and Warrier, K. G. K.}
}
@article { ISI:000264925400047,
	title = {Novel electroless process for copper coating of flyash using titania/ultraviolet-radiation/metal catalyst-system},
	journal = {Applied Surface Science},
	volume = {255},
	number = {13-14},
	year = {2009},
	month = {APR},
	pages = {6696-6704},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>A novel electroless process has been demonstrated in this investigation to coat the surface of flyash particles with a conducting metal such as copper. The conventional electroless process has been modified for this purpose by replacing the tin-palladium catalyst-system with the titania/ultraviolet-radiation/metal catalyst-system, where the metal is either copper or silver as demonstrated here. The mechanism of copper coating of flyash particles in an electroless bath, using the novel methods of surface-sensitization and surface-activation, has been systematically studied by monitoring changes in the surface-morphology, surface-chemistry, and surface-structure of flyash particles using the scanning electron microscope, energy dispersive analysis of X-rays, X-ray photoelectron spectroscope, and X-ray diffraction. It has been revealed that the novel electroless method involves coating the flyash particles with titania photocatalyst via sol-gel, which acts as a surface-sensitizer under the ultraviolet-radiation exposure for the subsequent surface-activation with the copper- or silver-clusters. The latter in turn acts as surface-catalyst for the subsequent Cu-coating in an electroless bath. The proposed mechanism of surface-sensitization and surface-activation of flyash particles using the novel catalyst-system has been compared with that using the conventional catalyst-system. (C) 2009 Elsevier B. V. All rights reserved.</p>},
	keywords = {Copper, Electroless, Flyash, Photocatalysis, sol-gel, titania},
	issn = {0169-4332},
	doi = {10.1016/j.apsusc.2009.02.066},
	author = {Shijitha, T. and Baiju, K. V. and Shukla, S. and Patil, K. and Warrier, K. G. K.}
}
