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• W3215901647 endingPage "113696" @default.
• W3215901647 startingPage "113696" @default.
• W3215901647 abstract "In this research, the surface modification has been studied as alternative to improve the photocatalytic properties of the materials. The principal novelty of the core/shell synthesis was the in situ oxidation of the monomer aniline in polyaniline over the TiO2 surface, it gives an increase in the electron transport to enhance the photocatalytic activity of the SiO2/TiO2 system. Thus, the step by step synthesis allow us to modify the superficial porosity of the SiO2 cores for the further formation of the titanium dioxide shell, the resulting surface of the material was modified with different amounts of a conductive polymer polyaniline. The results indicate a successfully coverage by the titanium dioxide in the anatase phase (XRD), the extent of the coverage was confirmed by the FESEM and HRTEM images, it is clear the effect of the methodology on the porosity of the cores, with the highest porosity the more successfully covering, this also indicates an increased specific area creating more available sites for the reactive species formation for the photodegradation. The energy band gap of covered core/shell materials do not present significant modifications compared with pure anatase TiO2 indicating that the photoactivity of the materials occurs by the electron conduction by the π-polaron transitions of polyaniline deposited on the surface of titanium dioxide. The photodegradation results indicate the possibility use of the materials for the of aromatic compounds decompositions under visible irradiation." @default.
• W3215901647 created "2021-12-06" @default.
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• W3215901647 date "2022-03-01" @default.
• W3215901647 modified "2023-10-18" @default.
• W3215901647 title "Polyaniline-sensitized SiO2/TiO2 photocatalysts for the degradation of phenol using visible light" @default.
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• W3215901647 doi "https://doi.org/10.1016/j.jphotochem.2021.113696" @default.
• W3215901647 hasPublicationYear "2022" @default.
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