title: Catalytic photodegradation of pharmaceuticals - homogeneous and heterogeneous photocatalysis.
abstract: Photocatalytic degradation of pharmaceuticals (hydrocortisone, estradiol, and verapamil) and personal care product additives (parabens-methyl, ethyl, and propyl derivatives) was investigated in the homogeneous phase (with ferric ions as the catalyst) and on TiO2. Ferric ions in concentrations corresponding to concentrations in natural water bodies were shown to be a significant accelerator of the degradation in homogeneous reaction mixtures. In heterogeneous photocatalytic reactions on TiO2, lower reaction rates, but mineralisation to higher extents, were observed.
authors.affiliation: Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic. sklement@jcu.cz.
authors.forename: S
authors.initials: S
authors.lastname: Klementova
authors.affiliation: Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic. sklement@jcu.cz.
authors.forename: D
authors.initials: D
authors.lastname: Kahoun
authors.affiliation: Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic. sklement@jcu.cz.
authors.forename: L
authors.initials: L
authors.lastname: Doubkova
authors.affiliation: Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic. sklement@jcu.cz.
authors.forename: K
authors.initials: K
authors.lastname: Frejlachova
authors.affiliation: Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic. sklement@jcu.cz.
authors.forename: M
authors.initials: M
authors.lastname: Dusakova
authors.affiliation: Institute of Chemical Technology, Prague, Czech Republic.
authors.forename: M
authors.initials: M
authors.lastname: Zlamal
mesh_terms: D002384:Catalysis; D004958:Estradiol / Q000737:chemistry; D006854:Hydrocortisone / Q000737:chemistry; D010226:Parabens / Q000737:chemistry; D004364:Pharmaceutical Preparations / Q000737:chemistry*; D010782:Photolysis / Q000528:radiation effects*; D013056:Spectrophotometry, Ultraviolet; D014025:Titanium / Q000737:chemistry; D014466:Ultraviolet Rays; D014700:Verapamil / Q000737:chemistry
chemical_list: D010226:Parabens; D004364:Pharmaceutical Preparations; C009495:titanium dioxide; D004958:Estradiol; D014700:Verapamil; D014025:Titanium; D006854:Hydrocortisone