Naslov
Solar active nanocomposite photocatalysts for the removal of pharmaceuticals

Autori
Kovacic, Marin ; Salaeh, Subhan ; Juretic, Daria ; Kusic, Hrvoje ; Lavrencic Stangar, Urska ; Dionysiou, Dionysios D. ; Loncaric Bozic, Ana

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

Izvornik
Abstracts of 2015 International Chemical Congress of Pacific Basin Societies (PACIFICHEM2015) / - , 2015, ENVR 64-ENVR 64

Skup
2015 International Chemical Congress of Pacific Basin Societies (PACIFICHEM2015)

Mjesto i datum
Honolulu (HI), Sjedinjene Američke Države, 15.12.2015. - 20.12.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
solar photocatalysis ; TiO2-FeZ catalyst ; diclofenac ; degradation pathway ; biodegradability ; toxicity

Sažetak
Photocatalytic Advanced Oxidation Technologies (PAOTs) are destructive methods for the treatment of water containing various recalcitrant pollutants, which employ semiconductor (nano)particles and solar or artificial UV irradiation. They are considered to be no- or low- waste generation technologies, making them advantageous over common water treatment technologies. Although PAOTs using (nano)-TiO2 are proved to be eco- and cost- effective, technical challenges such as agglomeration during and separation after the treatment, as well as limitation to absorb irradiation energy in broader incident radiation range, present current challenges within the field. In this work the activity of nanocomposite photocatalytic materials based on nano-TiO2 and iron-exchanged zeolite (FeZSM5), immobilized on glass support, under simulated solar irradiation was studied for degradation of diclofenac (DCF). DCF is a common non-steroidal anti-inflammatory drug and one of the most widely available drugs in the world that showed adverse effects in different organisms even at very low concentrations. The influence of studied photocatalytic process parameters on the system performance was investigated using design of experiments in combination with response surface modeling. The nanocomposite thin films showed higher efficiency than nano-TiO2 films in terms of DCF conversion, as well as regarding mineralization, improvement of biodegradability and lowering of toxicity of DCF model solution. Besides, the films stability tested throughout consecutive runs provided satisfactory results.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA