@article { ISI:000378514600006,
	title = {Quenching effect of uranyl species in the photoluminescence emission and visible-light-driven water dissociation activity of CdS and TiO2 photocatalysts},
	journal = {Photochemical \& Photobiological Sciences},
	volume = {15},
	number = {6},
	year = {2016},
	month = {APR},
	pages = {758-766},
	publisher = {ROYAL SOC CHEMISTRY},
	address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND},
	abstract = {<p>Anchoring of uranyl species (2-4 mol\%) led to the complete quenching of photoluminescence emission and the visible-light-driven water photodissociation activity of TiO2 (Degussa-P25) and a hydrothermally synthesized CdS photocatalyst. Photophysical measurements revealed a fast relaxation and the transfer of photogenerated electrons/energy from the TiO2 or CdS substrate to the acceptor uranyl moieties. Besides the position of flat band levels, significant overlap of the absorption/emission spectra of the host matrix and the surface-bound UO22+ species is responsible for this reverse energy transfer from a wide bandgap semiconductor to a material with a smaller band-to-band energy gap.</p>},
	issn = {1474-905X},
	doi = {10.1039/c6pp00022c},
	author = {Gupta, Narendra M. and Kelkar, Sarika A. and Korake, Prakash V.}
}
