Naslov
Determination of perfluorooctane sulfonic acid (PFOS) by-products after TiO2 solar photocatalysis over 3D-printed static mixers

Autori
Miklec, Kristina ; Cingesar, Ivan Karlo ; Grčić, Ivana ; Vrsaljko, Domagoj

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

Izvornik
28 th Croatian Meeting of Chemists and Chemical Engineers, Rovinj, Croatia, 2023 / Rogošić, Marko - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2023, 231-231

Skup
28 th 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
PFOS ; solar photocatalysis ; LC-MS/Q-TOF

Sažetak
Per- and polyfluoroalkyl substances (PFAS) are an environmentally daunting class of synthetic chemicals of emerging concern that have recently attracted regulatory attention. [1] Perfluorooctane sulfonic acid (PFOS) represents one of the PFAS compounds which has increasingly attracted global concerns in recent years since its global distribution, notable bioaccumulation and potential endangerment to human beings and other animals. [2, 3] PFOS is being used directly in surfactants, insecticides, and protective coatings for paper, textiles, carpets, and clothing. [4] TiO2 photocatalysis is listed as the emerging best available technique (BAT) in the reference document for common wastewater and waste gas treatment/management systems in the chemical sector. TiO2 as a photocatalyst has the ability to break down and destroy many types of pollutants but outdoor applications of this technology are still developing. Therefore, in this paper, the application of the photocatalytic oxidation process for the degradation of PFOS is presented as well as the PFOS by-products determined by Q-TOF LC/MS technique. The photocatalytic oxidation was performed in a laboratory compound parabolic collector (CPC) reactor which has been considered as a state-of-the-art of the photocatalytic reactor. As a simulation of sunlight, modular panel with the full spectra solar lamps with the appropriate UVB and UVA irradiation levels were used. A commercially available photocatalyst, titanium dioxide (TiO2 P25) was immobilized on a PETG carrier (Helix form of static mixer) by the sol-gel method. PETG carriers were obtained by 3D printing.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Interdisciplinarne tehničke znanosti

POVEZANOST RADA