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Cited by 111TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesAdvanced oxidation water treatment

Visible light induced photocatalytic reduction of Cr(VI) over polymer-sensitized TiO2 and its synergism with phenol oxidation

Qiu, Rongliang, Zhang, Dongdong, Diao, Zenghui, Huang, Xiongfei, He, Chun, Morel, Jean-Louis, Xiong, Ya·2012·Water Research
DOI 10.1016/j.watres.2012.01.046
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Abstract

In this study, both Cr(VI) reduction and phenol oxidation induced by polymer-sensitized TiO(2) were investigated under visible light. Study of the reaction mechanism indicated that poly(fluorene-co-thiophene) (PFT) acted as a semiconductor and was by itself able to reduce Cr(VI) under visible light irradiation. When coupled with TiO(2), PFT served not only as the electron donor for Cr(VI) reduction, but also as a sensitizer. Upon irradiation by visible light, electrons in the sensitizing PFT polymer are excited and are transferred to the conduction band of TiO(2). PFT-catalyzed reduction of Cr(VI) was significantly promoted by the presence of phenol, and synergism between Cr(VI) reduction and phenol degradation was demonstrated both by analysis of the FT-IR spectrum of PFT/TiO(2) and by measuring the effect of repeated use of PFT/TiO(2) on its photocatalytic efficiency. The results provide a cost-effective method to remove organic and inorganic pollutants simultaneously in the complex wastewater.

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Cited by

Sorted by citations

Authors
Qiu, R., Zhang, D., Diao, Z., Huang, X., He, C., Morel, J.-L., & Xiong, Y.
Affiliations
  • Sun Yat-sen University (CN)
  • Laboratoire Sols et Environnement (FR)
Corresponding author
Qiu, Rongliang
ORCID
Venue
Water Research
Publisher
Elsevier BV
Published
2012-05
Volume
46
Issue
7
Pages
2299-2306
ISSN
0043-1354 (ISSN-L)
DOI
10.1016/j.watres.2012.01.046
OpenAlex
W2049159939
Cited by
111
References
0
Citations by year
2025: 3 · 2024: 1 · 2023: 3 · 2022: 5 · 2021: 8 · 2020: 12 · 2019: 7 · 2018: 10 · 2017: 10 · 2016: 14 · 2015: 12 · 2014: 11 · 2013: 11 · 2012: 4
FWCI
4.66
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Water Research (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
  • National Science Foundation
  • Ministry of Earth Sciences
  • Natural Science Foundation of Guangdong Province
  • Ministry of Education, India
  • Fundamental Research Funds for the Central Universities
Topics
  • 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
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
Keywords
visible light photocatalysis, hexavalent chromium reduction, phenol oxidation, synergistic pollutant removal, electron transfer, wastewater treatment
MeSH terms
Catalysis, Chromium, Light, Oxidation-Reduction, Phenols, Photochemistry, Spectrum Analysis, Titanium, Water Pollutants, Chemical, Water Purification

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