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Degradation of 4-nitrophenol (4-NP) using Fe–TiO2 as a heterogeneous photo-Fenton catalyst
Abstract
Photocatalytic degradation of 4-nitrophenol was investigated using Fe-doped (1, 3, 5 and 8 wt.% Fe) TiO(2) catalysts under UV light irradiation in aqueous dispersions in the presence of H(2)O(2). Photocatalysts with the lowest Fe content (1%) showed a considerably better behavior with respect to the unloaded TiO(2) and the catalysts with higher Fe contents. Photocatalytic degradation was studied under different conditions such as amounts of 1% Fe-TiO(2) catalyst, H(2)O(2) dose and initial pH of 4-NP solution. The results indicated that about 67.53% total organic carbon of a solution containing 20 mg L(-1) 4-NP was removed at pH 6.17 by using 4.9 mM of H(2)O(2) and 0.4 g L(-1) of the catalyst in a 2-L batch photo-reactor, the complete degradation of 4-NP occurring after 60 min. It was also observed that catalytic behavior could be reproduced in consecutive experiments without a considerable decrease of the UV/Fe-TiO(2)/H(2)O(2) process efficiency.
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Several studies reported that titania-based photocatalyst modified with Pt, Cu, Pd, Rh, Ni show almost the same features in terms of efficient charge transfer phenomena, thus exhibiting a higher efficiency both in the UV and in the visible range.
“In the literature, several studies reported that titania-based photocatalyst modified with Pt, Cu, Pd, Rh, Ni [260,275,276,277,278,279,280] show almost the same features in terms of efficient charge transfer phenomena, thus exhibiting a higher efficiency both in the UV and in the visible range.”
From Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications (2020) · cites this paper as [277]
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Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications
Fazio, E., Gökce, B., De Giacomo, A., Meneghetti, M., Compagnini, G., Tommasini, M., Waag, F., Lucotti, A., Zanchi, C. G., Ossi, P. M., et al. (2020) · Nanomaterials · doi:10.3390/nano10112317 · Cited by 346
Metadata
- Authors
- Zhao, B., Mele, G., Pio, I., Li, J., Palmisano, L., & Vasapollo, G.
- Affiliations
- Northwest University (CN)
- University of Salento (IT)
- University of Palermo (IT)
- Corresponding author
- Zhao, Binxia
- Mele, Giuseppe
- Venue
- Journal of Hazardous Materials
- Publisher
- Elsevier BV
- Published
- 2010-04-15
- Volume
- 176
- Issue
- 1-3
- Pages
- 569-574
- ISSN
- 0304-3894 (ISSN-L)
- OpenAlex
- W1965942784
- Cited by
- 194
- References
- 0
- Citations by year
- 2026: 4 · 2025: 8 · 2024: 9 · 2023: 10 · 2022: 16 · 2021: 11 · 2020: 15 · 2019: 30 · 2018: 11 · 2017: 11 · 2016: 6 · 2015: 9 · 2014: 19 · 2013: 14 · 2012: 10
- FWCI
- 7.23
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Hazardous Materials (publishedVersion)
- PubMed (publishedVersion)
- 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
- p-nitrophenol, photocatalytic degradation, Fe-doped TiO2, heterogeneous photo-Fenton process, UV irradiation, hydrogen peroxide, iron doping concentration, pH effect, total organic carbon removal, wastewater treatment, catalyst reusability
- MeSH terms
- Catalysis, Hydrogen Peroxide, Iron, Nitrophenols, Photolysis, Titanium, Ultraviolet Rays
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