Marin Kovačić (Author), Subhan Salaeh (Author), Hrvoje Kušić (Author), Andraž Šuligoj (Author), Marko Kete (Author), Mattia Fanetti (Author), Urška Lavrenčič Štangar (Author), Dionysios D. Dionysiou (Author), Ana Lončarić Božić (Author)

Abstract

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.

Keywords

photocatalysis;thin films;TiO2-FeZ;solar irradiation;diclofenac;water treatment;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UNG - University of Nova Gorica
UDC: 543.2/.9
COBISS: 4445947 Link will open in a new window
ISSN: 0944-1344
Views: 5314
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Other data

URN: URN:SI:UNG
Type (COBISS): Not categorized
Pages: str. 17982-17994
Volume: ǂVol. ǂ23
Issue: ǂiss. ǂ18
Chronology: Sep. 2016
DOI: 10.1007/s11356-016-6985-6
ID: 9156748