title: Photocatalytic degradation of sulfamethoxazole in aqueous solution using a floating TiO2-expanded perlite photocatalyst.
abstract: Photocatalytic degradation of an antibiotic, sulfamethoxazole (SMX), in aqueous solution using a novel floating TiO2-expanded perlite photocatalyst (EP-TiO2-773) and radiation from the near UV spectral range was studied. The process is important considering that SMX is known to be a widespread and highly persistent pollutant of water resources. SMX degradation was described using a pseudo-first-order kinetic equation according to the Langmuir-Hinshelwood model. The products of the SMX photocatalytic degradation were identified. The effect of pH on the kinetics and mechanism of SMX photocatalytic degradation was explained.
authors.affiliation: Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland.
authors.forename: Maciej
authors.initials: M
authors.lastname: Długosz
authors.affiliation: Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
authors.forename: Paweł
authors.initials: P
authors.lastname: Żmudzki
authors.affiliation: Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Kwiecień
authors.affiliation: Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland. Electronic address: szczubia@chemia.uj.edu.pl.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Szczubiałka
authors.affiliation: Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
authors.forename: Jan
authors.initials: J
authors.lastname: Krzek
authors.affiliation: Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland. Electronic address: nowakows@chemia.uj.edu.pl.
authors.forename: Maria
authors.initials: M
authors.lastname: Nowakowska
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000737:chemistry*; D002384:Catalysis; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D010777:Photochemistry; D012822:Silicon Dioxide / Q000737:chemistry*; D012996:Solutions; D013056:Spectrophotometry, Ultraviolet; D013420:Sulfamethoxazole / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014867:Water
chemical_list: D000900:Anti-Bacterial Agents; D012996:Solutions; D014867:Water; C003076:Perlite; C009495:titanium dioxide; D012822:Silicon Dioxide; D014025:Titanium; D013420:Sulfamethoxazole; D000537:Aluminum Oxide
keywords: Antibiotic; Expanded perlite; Floating photocatalyst; Photocatalytic degradation; Sulfamethoxazole; Titanium dioxide