@article {81,
	title = {Effects of bismuth addition and photodeposition of platinum on (surface) composition, morphology and visible light photocatalytic activity of sol-gel derived TiO2.},
	journal = {Applied Catalysis, B: Environmental},
	volume = {154-155},
	year = {2014},
	note = {CAPLUS AN 2014:517386(Journal; Online Computer File)},
	pages = {153 - 160},
	publisher = {Elsevier B.V.},
	abstract = {Several remarkable observations regarding structure, (surface) compn. and visible light induced photocatalytic activity of Bi-promoted anatase photocatalysts are reported.  First, XPS characterization data show that compns. of mixed Bi-Ti-oxide phases obtained by hydrothermal treatment at 180{\textdegree} C of aq. solns. of ethanol, titanium n-butoxide, and bismuth nitrate, are surface enriched with a specific fraction of metallic-like bismuth.  Second, the formation of highly dispersed nanoparticles of platinum on these composites by photodeposition is accompanied by significant morphol. changes.  Third, the platinum functionalized, bismuth-promoted Anatase composites exhibit extraordinary photocatalytic activity in the photocatalytic degrdn. of org. compds. (Acid orange 7 and salicylic acid, resp.) upon illumination at 447 nm, higher than obsd. for P25 upon UV illumination in similar reactor configuration.  An optimized Pt-Bi-Ti-O composite consists of 1 wt\% Pt and 5 wt\% Bi.  The high activity of the composite is discussed on the basis of the cryst. morphol. and surface compn. [on SciFinder(R)]},
	keywords = {bismuth contg titania platinum nanoparticle visible light photocatalyst},
	isbn = {0926-3373},
	author = {Yi, Wentao and Yan, Chunyan and Hamdy, Mohamed S. and Baltrusaitis, Jonas and Mul, Guido.}
}
