Naslov
Competitive sorption of imatinib and torasemide on the TiO2 photocatalyst

Autori
Tolić Čop, Kristina ; Mutavdžić Pavlović, Dragana ; Javorić, Kristina

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
28th CROATIAN MEETING OF CHEMISTS AND CHEMICAL ENGINEERS, Book of Abstracts / - , 2023, 244-244

Skup
28th CROATIAN MEETING OF CHEMISTS AND CHEMICAL ENGINEERS

Mjesto i datum
Rovinj, Hrvatska, 28.03.2023. - 31.03.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Competitive sorption ; Imatinib ; Torasemide ; Immobilized TiO2

Sažetak
Pollution of the environment by various pollutants from different sources is not an unknown problem. The development of analytical techniques has made it possible to detect and identify various types of micropollutants, which accordingly raises awareness of the need to protect limited water resources. One of the threats to the water and solids environment is pharmaceuticals, whose exposure in the environment can lead to the formation of new unknown degradation products, possibly more toxic than the parent compound. Such small organic molecules are not successfully eliminated by conventional treatments, so one of the many ideas is to implement advanced oxidation processes into classical methods of water treatment. Photocatalysis, as a non-selective degradation process, efficiently removes various types of pollutants from water by the generation of reactive oxidative species. In order to perform photocatalysis, the analyte must have the tendency to sorb on the surface of the photocatalyst. Therefore, in this study, the sorption affinity of two pharmaceuticals, cytostatic imatinib and the loop diuretic torasemide, was investigated. The competition of the analytes for active sites on the immobilized TiO2 photocatalyst was investigated by determining the sorption kinetics, the influence of pH, ionic strength, temperature, and sorbent dosage. The sorption affinity of each pharmaceutical was described by linear, Freundlich, Langmuir, and Dubinin- Radushkevich isotherms. The maximum concentration of the substance sorbed to TiO2 was determined. If the substance has a good affinity for the sorbent/photocatalyst, the combination of two removal processes such as sorption and photocatalysis can only be beneficial for the removal of pollutants from water, especially since the sorption mechanism does not involve the formation of by-products

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Interdisciplinarne prirodne znanosti

POVEZANOST RADA