Copper and sulphur co-doped titanium oxide nanoparticles with enhanced catalytic and photocatalytic properties

Copper and sulphur co-doped titanium oxide nanoparticles have been prepared by the sol-gel method to develop versatile catalysts exhibiting enhanced catalytic and photocatalytic properties. Structural, morphological, chemical composition, and optical characterizations of the synthesized titanium oxi...

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Bibliographic Details
Published in:Catalysis science & technology 2020-10, Vol.1 (19), p.6511-6524
Main Authors: Ortiz-Bustos, Josefa, Gómez-Ruiz, Santiago, Mazarío, Jaime, Domine, Marcelo E, del Hierro, Isabel, Pérez, Yolanda
Format: Article
Language:English
Subjects:
Chemical composition
Copper
Hydrogen peroxide
Nanoparticles
Optical properties
Oxidation
Oxidizing agents
Photocatalysis
Photodegradation
Recyclability
Sol-gel processes
Sulfur
Titanium
Titanium dioxide
Titanium oxides
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Summary:Copper and sulphur co-doped titanium oxide nanoparticles have been prepared by the sol-gel method to develop versatile catalysts exhibiting enhanced catalytic and photocatalytic properties. Structural, morphological, chemical composition, and optical characterizations of the synthesized titanium oxide nanoparticles have been carried out in order to study the effect of incorporating copper and sulphur on the catalytic and photocatalytic activities of TiO 2 nanoparticles. Optimal incorporation of copper and sulphur to the titanium dioxide nanoparticles promotes the photocatalytic degradation of ciprofloxacin in water under irradiation of UV or visible light. Complete degradation of ciprofloxacin was achieved after 120 min with the 0.4% Cu-0.5% S-TiO 2 photocatalyst using UV and in 90 min applying visible light. Cu-S-TiO 2 nanoparticles also exhibit high activity (94-98% conversion) and excellent recyclability (with no loss of activity after 14 runs) in selective oxidation of thioanisole using H 2 O 2 as an oxidant. Copper and sulphur co-doped titanium oxide nanoparticles have been prepared by the sol-gel method to develop versatile catalysts exhibiting enhanced catalytic and photocatalytic properties.
ISSN:2044-4753
2044-4761
DOI:10.1039/d0cy01041c