Cited by 43Advanced oxidation water treatmentTiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis Techniques

Degradation of petroleum aromatic hydrocarbons using TiO 2 nanopowder film

Alizadeh Fard, Mohammad, Aminzadeh, Behnoush, Vahidi, Hossein·2013·Environmental Technology

Abstract

The performance of a photo-reactor packed with titanium dioxide (TiO2) immobilized on glass beads, initiated by irradiation with natural and artificial ultraviolet (UV) sources, was evaluated in terms of the degradation efficiency of petroleum aromatic hydrocarbons. The effects of parameters such as pH, reaction time, hydrogen peroxide (H2O2) concentration and some ions were investigated. Additionally, the degradation of total organic carbon (TOC) and the formation of byproducts were studied. Photodegradation rates ofbenzene, toluene, ethylbenzene and xylenes (BTEX) by processes of UV/TiO2 and UV/TiO2/H2O2 were found to obey pseudo first-order kinetic models. Results indicated that the effect of pH value was negligible at the pH range of 5.5 to 8.5. TOC removal improved with addition of H2O2 demonstrating that a lack of hydrogen peroxide leads to incomplete mineralization. The effect of cations and anions on the photodegradation efficiencies of BTEX revealed that Mg2+ and Ca2+ caused the most deterioration in BTEX degradation efficiency. However S4O(2-) and CO3(2-) had the most salient inhibitory effects compared with other tested anions. The degradation efficiencies of both systems were investigated for the treatment of real polluted groundwater collected from the city of Tehran. Results showed that the degradation efficiencies of BTEX declined in the presence of inorganic and organic competitor species.

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Crossref · 10.1080/09593330.2012.743592

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Authors
Alizadeh Fard, M., Aminzadeh, B., & Vahidi, H.
Affiliations
University of Tehran (IR)
Venue
Environmental Technology
Published
2013-05
Volume
34
Issue
9
Pages
1183-1190
ISSN
  • 0959-3330 (ISSN-L)
  • 1479-487X
OpenAlex
W1975866599
Cited by
43
References
27
Citations by year
2026: 1 · 2023: 5 · 2022: 7 · 2021: 8 · 2020: 3 · 2019: 3 · 2018: 7 · 2017: 4 · 2016: 4 · 2015: 1
FWCI
0.29
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
University of Tehran
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
Keywords
TiO2 photocatalysis, hydrogen peroxide, mineralization, total organic carbon removal, pseudo-first-order kinetics, mineralization inhibition, cation and anion effects, groundwater remediation
MeSH terms
Hydrocarbons, Aromatic, Hydrogen Peroxide, Hydrogen-Ion Concentration, Nitrates, Oxidation-Reduction, Oxygen, Petroleum, Phenols, Time Factors, Titanium, Water Pollutants, Chemical, Environmental Restoration and Remediation, Nanoparticles, Groundwater

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