@article { ISI:000275612000009,
	title = {Influence of zeolitic structure on photoreduction property and hydrogen evolution reaction},
	journal = {International Journal of Hydrogen Energy},
	volume = {35},
	number = {5},
	year = {2010},
	month = {MAR},
	pages = {1911-1920},
	publisher = {PERGAMON-ELSEVIER SCIENCE LTD},
	address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND},
	abstract = {<p>A new photocatalytic material developed by supporting TiO(2) in combination with transition metal ion like cobalt and heteropolyacid (HPA) on the surface is facilitating enhanced photoreduction of water and methyl orange Zeolites being a solid acid play an important role in the electron transfer reaction, facilitated by the Lewis acid sites in the form of aluminium ions In the present work, four different zeolite matrices namely, NaY zeolite, ultrastable zeolite Y, beta zeolite and titanium silicate-1 have been used for the synthesis of new photocatalytic materials These materials have been evaluated for water splitting by an initial screening procedure using methyl orange photoreduction The photocatalyst containing Na Y has emerged as a potential photocatalyst with hydrogen evolution rate of 2730 mu mol/h/g of TiO(2) Hydrogen evolution was not observed for the composite photocatalysts synthesized using the other zeolite matrices It has been observed that physicochemical properties like Si/Al ratio, acidity and basicity of the zeolite support have a tremendous influence on the photoreduction property of these zeolite matrices (C) 2010 Professor T Nejat Veziroglu Published by Elsevier Ltd All rights reserved</p>},
	keywords = {H(2) evolution, Lewis acidity, Si/Al ratio, water splitting, Zeolite structure},
	issn = {0360-3199},
	doi = {10.1016/j.ijhydene.2009.12.172},
	author = {Chatti, Ravikrishna V. and Dubey, Nidhi and Joshi, Meenal V. and Labhsetwar, Nitin K. and Joshi, P. N. and Rayalu, Sadhana S.}
}
@article { ISI:000288483400033,
	title = {Characterization of surface acid sites in tin-silicalite-1 (Sn-MFI) molecular sieve by X-ray photoelectron spectroscopy},
	journal = {Microporous and Mesoporous Materials},
	volume = {141},
	number = {1-3},
	year = {2011},
	month = {MAY},
	pages = {236-240},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>The nature, strength and density of surface acid sites in Sn-MFI molecular sieves with different Sn-content were characterized by N 1s high resolution photoelectron peak of chemisorbed pyridine in combination with pyridine-IR and TPAD. Two peaks emerged at 399.5 +/- 0.2 and 401.5 +/- 0.2 eV by deconvoluting composite N is peak were assigned to chemisorbed pyridine on weak and relatively strong Lewis acid sites, respectively. The relative percentage of strong Lewis acid sites was found to increase with the decrease of framework Sn content. A close agreement was observed between the ratios of weak Lewis acid sites to strong Lewis acid sites obtained from XPS and TPAD. (C) 2010 Elsevier Inc. All rights reserved.</p>},
	keywords = {Lewis acidity, Pyridine chemisorption, SiO2/SnO2 molar ratio, Sn-MFI, XPS},
	issn = {1387-1811},
	doi = {10.1016/j.micromeso.2010.10.036},
	author = {Niphadkar, P. S. and Patil, K. R. and Joshi, P. N.}
}
