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https://doi.org/10.1016/j.colsurfa.2018.06.011

has been cited by the following article:

• TITLE: Removal of the Methylene Blue Dye (MB) with Catalysts of Au-TiO2: Kinetic and Degradation Pathway

  AUTHORS: María-Cruz Arias, Claudia Aguilar, Mohamad Piza, Elvira Zarazua, Francisco Anguebes, Francisco Anguebes, Francisco Anguebes, Francisco Anguebes, Víctor Cordova

  KEYWORDS: Titanium Oxide, Water Pollution, Methylene Blue Dye, Heterogeneous Photocatalysis

  JOURNAL NAME: Modern Research in Catalysis, Vol.10 No.1, January 29, 2021

  ABSTRACT: Au-TiO2 catalysts were used in the photocatalytic degradation of the methylene blue dye (MB). The synthesis of titanium oxide (TiO2) was carried out by sol-gel method. Subsequently, particles of Au were deposited on the surface of the semiconductor by photo-deposition, thus modifying the surface of the semiconductor. For the characterization of the catalyst obtained, the techniques of X-ray Diffraction (DRX), Scanning Electron Microscopy (SEM), Spectroscopy with Diffuse Reflectance (DR) and Surface Area by the BET (Brunauer, Emmett y Teller) were used. The solid obtained was tested experimentally as a catalyst in the photocatalytic degradation of a solution of MB. The data obtained were analyzed by UV-vis Spectroscopy and Total Organic Carbon (TOC) and the results indicated conversions were greater than 80%. The intermediate products were evaluated by mass coupled gas chromatography (GC-MS) and the MB decomposition route was by hydroxylation, obtaining aromatic intermediates, esters and products of the chemical degradation of the molecule.