Cited by 1,409TiO2 Photocatalysis and Solar CellsAdvanced oxidation water treatmentAdvanced Photocatalysis Techniques

Heterogeneous Photocatalysis: Recent Advances and Applications

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Ibhadon, Alex, Fitzpatrick, Paul·2013·Catalysts

Abstract

Semiconductor heterogeneous photocatalysis, the subject of this review, is a versatile, low-cost and environmentally benign treatment technology for a host of pollutants. These may be of biological, organic and inorganic in origin within water and air. The efficient and successful application of photocatalysis demands that the pollutant, the catalyst and source of illumination are in close proximity or contact with each other. The ability of advanced oxidation technology to remove low levels of persistent organic pollutants as well as microorganisms in water has been widely demonstrated and, progressively, the technology is now being commercialized in many areas of the world including developing nations. This review considers recent developments in the research and application of heterogeneous semiconductor photocatalysis for the treatment of low-level concentrations of pollutants in water and air using titanium dioxide as a “model” semiconductor. The review considers charge transport characteristics on the semiconductor surface, photocatalyst reactor design and organic degradation mechanistic pathways. The effects of photoreactor operating parameters on the photocatalytic process are discussed in addition to mineralization and disinfection kinetics.

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Registry

Crossref · 10.3390/catal3010189

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  • TiO2 and ZnO-based NPs are the most versatile semiconductor photocatalysts due to their nontoxicity, good stability, ability to oxidize and decompose toxic organic pollutants, resistance to corrosion, low cost and durability.

    “With the characteristics of nontoxicity, good stability and a special ability to oxidize, decompose toxic organic pollutants, resist corrosion, low cost and durability, TiO2 and ZnO-based NPs are the most versatile semiconductor photocatalysts [225,226].”

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Authors
Ibhadon, A., & Fitzpatrick, P.
Affiliations
  • University of Hull (GB)
  • C-Tech Innovation (United Kingdom) (GB)
Corresponding author
Ibhadon, Alex
Venue
Catalysts
Publisher
MDPI AG
Published
2013-03-01
Volume
3
Issue
1
Pages
189-218
ISSN
2073-4344 (ISSN-L)
OpenAlex
W2134187077
Cited by
1,409
References
110
Citations by year
2026: 71 · 2025: 109 · 2024: 125 · 2023: 121 · 2022: 148 · 2021: 161 · 2020: 142 · 2019: 120 · 2018: 125 · 2017: 124 · 2016: 87 · 2015: 50 · 2014: 21 · 2013: 3
FWCI
19.52
Type
journal article
Language
en
Open access
Locations
  • Catalysts (publishedVersion, cc-by)
  • Repository@Hull (Worktribe) (University of Hull) (publishedVersion, other-oa)
  • Repository@Hull (Worktribe) (University of Hull) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
Keywords
heterogeneous photocatalysis, semiconductor photocatalysts, titanium dioxide, advanced oxidation processes, water treatment, air pollution, persistent organic pollutants, microbial disinfection, charge transport, mineralization kinetics

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