Please use this identifier to cite or link to this item:
Title: Photocatalytic Degradation of Rhodamine B and Methylene Orange Using TiO2-ZrO2 as Nanocomposite
Authors: Ruíz Santoyo, Víctor
Marañon Ruiz, Virginia F.
Romero Toledo, Rafael
González Vargas, Oscar Arturo
Pérez Larios, Alejandro
Keywords: photocatalysis
mixed oxide
TiO2 -ZrO2
Issue Date: Sep-2021
Publisher: MDPI
Citation: Ruíz-Santoyo, V.; Marañon-Ruiz, V.F.; Romero-Toledo, R.; González Vargas, O.A.; Pérez-Larios, A. Photocatalytic Degradation of Rhodamine B and Methylene Orange Using TiO2-ZrO2 as Nanocomposite. Catalysts 2021, 11, 1035. catal11091035
Series/Report no.: Catalysts;2021, Vol.11, Num. 9. 1035
Abstract: Abstract: The present research reports the synthesis of ZrO2 -doped TiO2 photocatalysts at different ZrO2 contents (1, 3 and 5% wt.) synthesized by the sol–gel method. The samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction, attenuated total reflectance-Fourier transform infrared, ultraviolet–visible, X-ray photoelectron spectroscopy and N2 adsorption–desorption analysis. The photocatalytic activity of the ZrO2 -doped TiO2 was investigated against the dyes methyl orange and rhodamine B through mineralization studies. The ZrO2 -doped TiO2 samples presented a semiglobular-ovoid agglomerate shape around 500–800 nm. The samples presented high crystallinity of the TiO2 anatase phase, XPS suggested the formation of Zr–O–Ti bonds and the samples were classified as mesoporous materials with slight changes in the optical features in comparison with pure TiO2 . Our study shows that the ZrO2 -doped TiO2 composites exhibited a higher photocatalytic activity than just utilizing the synthetized TiO2 and a commercial P25. The different degradation behaviors are attributed to differences in the textural properties, and to the different optical absorptions of the samples due to structural defects created by the level of doping of Zr4+ ions into the TiO2 lattice. Reaction kinetics parameters were calculated by the Langmuir–Hinshelwood model, and a third run cycle of the ZrO2 -doped TiO2 at 1% wt. achieved a photocatalytic degradation of 78.1 and 75.5% for RhB and MO, respectively.
Description: Artículo
ISSN: 2073-4344
Appears in Collections:2414 Artículos

Files in This Item:
File Description SizeFormat 
Photocatalytic Degradation of Rhodamine B.pdfDocumento5.38 MBAdobe PDFView/Open
Enlace a_Photocatalytic Degradation of Rhodamine B and Methylene Orange.htmEnlace a publicación41.74 kBHTMLView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.