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Title:Photocatalytic sol-gel/P25 TiO [sub] 2 coatings for water treatment : degradation of 7 selected pharmaceuticals (CO3:IL02)
Authors:ID Matoh, Lev, FKKT Uni-Lj (Author)
ID Žener, Boštjan, FKKT Uni-Lj (Author)
ID Kovačić, Marin, Uni. Zagreb (Author)
ID Kušić, Hrvoje, Uni. Zagreb (Author)
ID Arčon, Iztok, UNG (Author)
ID Levstek, Meta, Central Wastewater Treatment Plant Domžale (Author)
ID Lavrenčič Štangar, Urška, FKKT Uni-Lj (Author)
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Language:English
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:The effect of different water matrices on the photocatalytic degradation of dissolved pharmaceuticals was explored. The focus was on the degradation efficiencies in wastewater effluent from a bioreactor and water effluent from a central wastewater treatment plant and comparing the results with degradation in deionized H2O. The compounds tested included: oxytetracycline, marbofloxacin, ibuprofen, diclofenac, phenytoin, ciprofloxacin, sulfamethoxazole. For the experiments performed in this study, a compact packed-bed photocatalytic reactor was used in which the hybrid TiO2 photocatalyst (sol-gel/P25) was deposited on ~3 mm glass beads. As expected, the reactions proceed more slowly in wastewater than in deionized water, yet it is shown that removal of the compounds from the water is still possible even when other organic molecules are present. Total organic carbon measurements have shown that complete mineralization takes place albeit at slower rates than the initial degradation of parent compounds. The results show that an acidic pH can increase the reaction rates and the adsorption on the photocatalyst surface. Analyses of the degradation intermediates were performed using tandem liquid chromatography triple-quadrupole mass spectrometry system. Additionally, X-ray absorption spectroscopy was applied to get insight into the local structure of the photocatalyst before and after use. Understanding the effects that different wastewater compositions have on photocatalytic reactions will help to refine the potential applications of the technology.
Keywords:titanium dioxide, sol-gel processes, functionla applications, water treatment
Publication version:Version of Record
Year of publishing:2022
Number of pages:str. 1-39
Numbering:Vol. , iss.
PID:20.500.12556/RUNG-7635 New window
COBISS.SI-ID:122451459 New window
ISSN on article:0272-8842
DOI:10.1016/j.ceramint.2022.09.204 New window
NUK URN:URN:SI:UNG:REP:FFI81KQI
Publication date in RUNG:30.09.2022
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Record is a part of a journal

Title:Ceramics International
Year of publishing:2022

Secondary language

Language:Undetermined
Keywords:titanov dioksid, sol-gel procesi, funkcionalna aplikacija, čiščenje vode


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