Thick film titania on glass supports for vapour phase photocatalytic degradation of toluene, acetone, and ethanol

0356135 - ÚACH 2011 RIV NL eng J - Journal Article
Neti, R.N. - Parmar, G.R. - Bakardjieva, Snejana - Šubrt, Jan
Thick film titania on glass supports for vapour phase photocatalytic degradation of toluene, acetone, and ethanol.
Chemical Engineering Journal. Roč. 163, č. 3 (2010), s. 219-229. ISSN 1385-8947. E-ISSN 1873-3212
Institutional research plan: CEZ:AV0Z40320502
Keywords : titania photocatalyst * thick films * glass support
Subject RIV: CA - Inorganic Chemistry
Impact factor: 3.074, year: 2010

Thick film titania photocatalysts (50-100 mu m. Degussa P-25 TiO2) coated on two types of soda glass supports viz. beads (TiO2/B) and Rasching rings (TiO2/R) were tested in vapour phase photodegradation of toluene (63-383 g m(-3)), acetone (116-1161 g m(-3)), and ethanol (116-1161 g m(-3)) in a batch recirculation photoreactor at 60-70 degrees C. The concentrations of the substrates were 10- to 100-fold higher than those reported previously in similar investigations. The films were characterized by using SEM for morphology and EDX for elemental composition and mapping. Further, the effects of water vapour and shape and packing of the glass supports on the photodegradation kinetics were examined. The TiO2 films on both the glass supports demonstrated high activity for photodegradation of toluene, acetone, and ethanol according to first-order kinetics.
Permanent Link: http://hdl.handle.net/11104/0194738