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Title: Effects in Band Gap for Photocatalysis in TiO2 Support by Adding Gold and Ruthenium
Authors: Fonseca Cervantes, Omar Ricardo
Pérez Larios, Alejandro
Romero Arellano, Víctor Hugo
Sulbarán Rangel, Belkis
Guzmán González, Carlos Alberto
Keywords: photocatalysis
sol–gel method
supported on TiO2
oxidized and reduced oxidation states
Issue Date: Sep-2020
Publisher: Elsevier
Citation: Fonseca-Cervantes, O.R.; Pérez-Larios, A.; Romero Arellano, V.H.; Sulbaran-Rangel, B.; Guzmán González, C.A. Effects in Band Gap for Photocatalysis in TiO2 Support by Adding Gold and Ruthenium. Processes 2020, 8, 1032.
Series/Report no.: Processes;Vol. 8, (9):1032
Abstract: Abstract One of the key features of a nano catalyst for photocatalysis is the band gap, because, through its analysis, the potential of the catalyst can be determined. In this investigation, the impact on the band gap of different catalysts made by the sol–gel method, compared with TiO2 P25 Sigma-Aldrich, showing the effect of using gold or ruthenium as a metal supported on TiO2, with two different dosage percentages of 1 and 3 percent, was analysed. Additionally, two oxidation states of the catalyst, the reduced form and the oxidized form of the metal, were used to see the effect on the band gap. The experiments show that the gold addition has a higher beneficial effect on the band gap for the UV region (ultra violet region), and the ruthenium addition has a higher beneficial effect for the UV/visible region. The preferred oxidation state for the band gap was the oxidized state. The characterisation of the catalyst provided an insight into the relation between the band gap and the catalyst itself.
Description: Artículo
ISSN: 2227-9717
Appears in Collections:2414 Artículos

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