Preparation of Red TiO2 with Excellent Visible Light Absorption from Industrial TiOSO4 Solution for Photocatalytic Degradation of Dyes
2024
Red TiO2 for Better Light Absorption and Dye Degradation
publication
Evidence: high
Author Information
Author(s): Pu Hong, Tian Congxue, Zhang Hui
Primary Institution: Southwest Petroleum University
Hypothesis
Can sulfur-doped TiO2 nanoparticles be synthesized to enhance visible light absorption and photocatalytic activity?
Conclusion
The red TiO2 nanoparticles exhibit excellent visible light absorption and photocatalytic activity for degrading dyes.
Supporting Evidence
- The red TiO2 nanoparticles have a low bandgap of 2.10 eV.
- Electron paramagnetic resonance measurements show that the red TiO2 has abundant oxygen vacancies and Ti3+.
- The red TiO2 exhibits great photocatalytic activity in the visible light degradation of rhodamine B and methylene blue.
Takeaway
Scientists made a special red TiO2 that can soak up more light and help clean up dirty water by breaking down colors in it.
Methodology
Synthesis of sulfur-doped TiO2 followed by calcination with melamine, and evaluation of photocatalytic activity using Rhodamine B and Methylene Blue.
Limitations
The study does not specify the long-term stability of the red TiO2 under continuous use.
Digital Object Identifier (DOI)
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