@article { ISI:000255686900001,
	title = {Effect of gold dispersion on the photocatalytic activity of mesoporous titania for the vapor-phase oxidation of acetone},
	journal = {International Journal of Photoenergy},
	year = {2008},
	month = {JAN},
	pages = {Article No. 789149},
	publisher = {HINDAWI PUBLISHING CORPORATION},
	type = {Article},
	address = {410 PARK AVENUE, 15TH FLOOR, \#287 PMB, NEW YORK, NY 10022 USA},
	abstract = {<p>Mesostructured titanium dioxide photocatalyst, having uniform crystallite size (6-12 nm) and average pore diameter of similar to 4.2 nm, was synthesized by using a low-temperature nonsurfactant hydrothermal route, employing tartaric acid as a templating agent. Gold additions from 0.5 to 2wt\% were incorporated, either during the hydrothermal process or by postsynthesis wet impregnation. Compared to the impregnation-prepared samples, the samples synthesized hydrothermally contained smaller-size (\&lt;= 1 nm) gold clusters occluded in the pores of the host matrix. Whereas CO(2) and H(2)O were the main reaction products in UV-assisted vapor-phase oxidation of acetone using these catalysts, C(2)H(6) and HCO(2)CH(3) were also produced for higher acetone concentrations in air. The conversion of acetone was found to increase with decrease in the size of both TiO(2) and gold particles. In situ IR spectroscopy revealed that titania and gold particles serve as independent adsorption and reaction sites for acetone and oxygen molecules. Acetone molecules adsorb exclusively at TiO(2) surface, giving rise to a strongly adsorbed (condensed) state as well as to the formation of formate- and methyl formate- type surface species. Hydroxyl groups at titania surface participate directly in these adsorption steps. Nanosize gold particles, on the other hand, were primarily responsible for the adsorption and activation of oxygen molecules. Mechanistic aspects of the photochemical processes are discussed on the basis of these observations. Copyright (C) 2008.</p>},
	issn = {1110-662X},
	doi = {10.1155/2008/789149},
	author = {Awate, S. V. and Belhekar, Anagha A. and Bhagwat, S. V. and Kumar, R. and Gupta, N. M.}
}
@article { ISI:000303485400020,
	title = {Effects of grain morphology, microstructure and dispersed metal cocatalyst on the photoreduction of water over impurity-doped LaInO3},
	journal = {Materials Research Bulletin},
	volume = {47},
	number = {5},
	year = {2012},
	month = {MAY},
	pages = {1217-1228},
	publisher = {PERGAMON-ELSEVIER SCIENCE LTD},
	address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND},
	abstract = {<p>The single phase lanthanum indates doped with Ga (for La) and N (for O), i.e. La1-xGaxInO3 (0 \&lt;= x \&lt;= 0.2) and LaInO1-yNy (y similar to 0.6), exhibit significant activity for photoreduction of water; the yield of H-2 produced depending on dopant, excitation source, and addition of a sacrificial reagent. The two-step H-2 evolution observed for this reaction corresponds with the two distinct absorbance regimes displayed by these materials, one in UV-region due to bandgap excitation and the other in visible region arising from the transitions involving sub-bandgap donor or acceptor energy states. The photocatalytic activity of these d(10) metal oxides increases on coating with a metal/metal oxide co-catalyst, gold exhibiting superior activity to Pt and NiO, irrespective of excitation source and sample composition. The preparation-controlled particle morphology, doping-induced lattice imperfections, and metal/semiconductor hetero-junctions are envisaged to play a key role in the absorption characteristics and photocatalytic water reduction activity of metal/LaInO3 nanocomposites. (C) 2012 Elsevier Ltd. All rights reserved.</p>},
	keywords = {Catalytic properties, Chemical synthesis, Electron microscopy, Interfaces, Semiconductors},
	issn = {0025-5408},
	doi = {10.1016/j.materresbull.2012.01.031},
	author = {Dhanasekaran, P. and Gupta, N. M.}
}
