1. Multicomponent Cu-Mn-Fe silica supported catalysts to stimulate photo-Fenton-like water treatment under sunlightAndraž Šuligoj, Ivalina Trendafilova, Ksenija Maver, Albin Pintar, Alenka Ristić, Goran Dražić, Wael H. M. Abdelraheem, Zvonko Jagličić, Iztok Arčon, Nataša Zabukovec Logar, Dionysios D. Dionysiou, Nataša Novak Tušar, izvirni znanstveni članek Ključne besede: Magnetic catalyst, Photocatalyst, Water treatment, Sunlight, Contaminants of emerging concern, Photo-Fenton-like systems, Cu, Mn, Fe, XANES, EXAFS Objavljeno v RUNG: 06.07.2023; Ogledov: 2501; Prenosov: 9 Celotno besedilo (4,32 MB) |
2. Reuse of TiO2-based catalyst for solar driven water treatment; thermal and chemical reactivationSubhan Salaeh, Marin Kovacic, Dominik Kosir, Hrvoje Kušić, Urška Lavrenčič Štangar, Dionysios D. Dionysiou, Ana Lončarić Božić, 2017, izvirni znanstveni članek Ključne besede: Solar photocatalysis, TiO2-FeZ, Thermal and chemical reactivation, Ozone, Diclofenac Objavljeno v RUNG: 03.11.2016; Ogledov: 5745; Prenosov: 0 Gradivo ima več datotek! Več... |
3. Solar-driven photocatalytic treatment of diclofenac using immobilized TiO2-based zeolite compositesMarin Kovacic, Subhan Salaeh, Hrvoje Kušić, Andraz Suligoj, Marko Kete, Mattia Fanetti, Urška Lavrenčič Štangar, Dionysios D. Dionysiou, Ana Lončarić Božić, 2016, izvirni znanstveni članek Opis: The study is aimed at evaluating the potential of
immobilized TiO2-based zeolite composite for solar-driven
photocatalytic water treatment. In that purpose, TiO2-iron-exchanged
zeolite (FeZ) composite was prepared using commercial
Aeroxide TiO2 P25 and iron-exchanged zeolite of ZSM5
type, FeZ. The activity of TiO2-FeZ, immobilized on glass
support, was evaluated under solar irradiation for removal of
diclofenac (DCF) in water. TiO2-FeZ immobilized in a form
of thin film was characterized for its morphology, structure,
and composition using scanning electron microscopy/energydispersive
x-ray spectroscopy (SEM/EDX). Diffuse reflectance
spectroscopy (DRS) was used to determine potential
changes in band gaps of prepared TiO2-FeZ in comparison
to pure TiO2. The influence of pH, concentration of hydrogen
peroxide, FeZ wt% within the composite, and photocatalyst
dosage on DCF removal and conversion efficiency by solar/
TiO2-FeZ/H2O2 process was investigated. TiO2-FeZ demonstrated
higher photocatalytic activity than pure TiO2 under
solar irradiation in acidic conditions and presence of H2O2. Ključne besede: Photocatalysis, Thin films, TiO2-FeZ, Solar irradiation, Diclofenac, Water Treatment Objavljeno v RUNG: 22.07.2016; Ogledov: 6977; Prenosov: 0 Gradivo ima več datotek! Več... |
4. Diclofenac removal by simulated solar assisted photocatalysis using TiO2-based zeolite catalyst; mechanisms, pathways and environmental aspectsSubhan Salaeh, Daria Juretic Perisic, Martina Biosic, Hrvoje Kušić, Sandra Babich, Urška Lavrenčič Štangar, Dionysios D. Dionysiou, Ana Lončarić Božić, 2016, izvirni znanstveni članek Opis: The study explores the potential of immobilized TiO2-based zeolite composite photocatalyst (TiO2-FeZ)
made of commercial AEROXIDE TiO2 P25 and iron-exchanged zeolite of ZSM5 type (FeZ), for solar assisted
treatment of diclofenac (DCF), pharmaceutical included in the ‘‘watch list” during last prioritization in
water legislation by EU.
In this study the efficiency of applied photocatalytic treatment, solar/TiO2-FeZ/H2O2, of DCF water
solution was evaluated on basis of DCF removal and conversion kinetics, as well as the changes of
common parameters for assessing water quality. Hence, the changes in the removal and mineralization
of overall organic content, biodegradability, toxicity to Vibrio fischeri, dechlorination of DCF and
its formed by-products, were monitored during the treatment. The obtained data were correlated with
the evolution of DCF by-products, identified and monitored during the treatment by HPLC/MSMS
analysis. In order to estimate the influence of water matrix, all experiments were performed in the
presence of chloride or sulphate as counter ions. The obtained data revealed that degradation
mechanism of DCF by applied treatment process using immobilized TiO2-FeZ includes the adsorption
onto photocatalyst surface and consequent degradation. The contribution of homogeneous Fenton
reaction due to leached iron ions was found to be negligible. The adsorption and degradation pathway of DCF were influenced by the type of counter ions, which was reflected in the observed changes of
water quality parameters. Ključne besede: Solar photocatalysis, TiO2-FeZ catalyst, Diclofenac, Degradation pathway, Biodegradability, Toxicity Objavljeno v RUNG: 21.07.2016; Ogledov: 6541; Prenosov: 0 Gradivo ima več datotek! Več... |
5. Removal of diclofenac from water by zeolite-assisted advanced oxidation processesDaria Juretic Perisic, Vanja Gilja, Mirjana Novak Stankov, Zvonimir Katancic, Hrvoje Kusic, Urška Lavrenčič Štangar, Dionysios D. Dionysiou, Ana Loncaric Bozic, 2016, izvirni znanstveni članek Ključne besede: Diclofenac, FeZSM5, Biodegradability, Toxicity, Catalyst stability Objavljeno v RUNG: 24.02.2016; Ogledov: 5974; Prenosov: 0 Gradivo ima več datotek! Več... |