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Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO(2) Nanoparticles

TiO(2) nanoparticles containing 0.0, 1.0, 5.0, and 10.0 wt.% Mo were prepared by a reverse micelle template assisted sol–gel method allowing the dispersion of Mo atoms in the TiO(2) matrix. Their textural and surface properties were characterized by means of X-ray powder diffraction, micro-Raman spe...

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Autores principales: Nasi, Roberto, Esposito, Serena, Freyria, Francesca S., Armandi, Marco, Gadhi, Tanveer A., Hernandez, Simelys, Rivolo, Paola, Ditaranto, Nicoletta, Bonelli, Barbara
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6471443/
https://www.ncbi.nlm.nih.gov/pubmed/30901826
http://dx.doi.org/10.3390/ma12060937
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author Nasi, Roberto
Esposito, Serena
Freyria, Francesca S.
Armandi, Marco
Gadhi, Tanveer A.
Hernandez, Simelys
Rivolo, Paola
Ditaranto, Nicoletta
Bonelli, Barbara
author_facet Nasi, Roberto
Esposito, Serena
Freyria, Francesca S.
Armandi, Marco
Gadhi, Tanveer A.
Hernandez, Simelys
Rivolo, Paola
Ditaranto, Nicoletta
Bonelli, Barbara
author_sort Nasi, Roberto
collection PubMed
description TiO(2) nanoparticles containing 0.0, 1.0, 5.0, and 10.0 wt.% Mo were prepared by a reverse micelle template assisted sol–gel method allowing the dispersion of Mo atoms in the TiO(2) matrix. Their textural and surface properties were characterized by means of X-ray powder diffraction, micro-Raman spectroscopy, N(2) adsorption/desorption isotherms at −196 °C, energy dispersive X-ray analysis coupled to field emission scanning electron microscopy, X-ray photoelectron spectroscopy, diffuse reflectance UV–Vis spectroscopy, and ζ-potential measurement. The photocatalytic degradation of Rhodamine B (under visible light and low irradiance) in water was used as a test reaction as well. The ensemble of the obtained experimental results was analyzed in order to discover the actual state of Mo in the final materials, showing the occurrence of both bulk doping and Mo surface species, with progressive segregation of MoO(x) species occurring only at a higher Mo content.
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spelling pubmed-64714432019-04-27 Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO(2) Nanoparticles Nasi, Roberto Esposito, Serena Freyria, Francesca S. Armandi, Marco Gadhi, Tanveer A. Hernandez, Simelys Rivolo, Paola Ditaranto, Nicoletta Bonelli, Barbara Materials (Basel) Article TiO(2) nanoparticles containing 0.0, 1.0, 5.0, and 10.0 wt.% Mo were prepared by a reverse micelle template assisted sol–gel method allowing the dispersion of Mo atoms in the TiO(2) matrix. Their textural and surface properties were characterized by means of X-ray powder diffraction, micro-Raman spectroscopy, N(2) adsorption/desorption isotherms at −196 °C, energy dispersive X-ray analysis coupled to field emission scanning electron microscopy, X-ray photoelectron spectroscopy, diffuse reflectance UV–Vis spectroscopy, and ζ-potential measurement. The photocatalytic degradation of Rhodamine B (under visible light and low irradiance) in water was used as a test reaction as well. The ensemble of the obtained experimental results was analyzed in order to discover the actual state of Mo in the final materials, showing the occurrence of both bulk doping and Mo surface species, with progressive segregation of MoO(x) species occurring only at a higher Mo content. MDPI 2019-03-21 /pmc/articles/PMC6471443/ /pubmed/30901826 http://dx.doi.org/10.3390/ma12060937 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Nasi, Roberto
Esposito, Serena
Freyria, Francesca S.
Armandi, Marco
Gadhi, Tanveer A.
Hernandez, Simelys
Rivolo, Paola
Ditaranto, Nicoletta
Bonelli, Barbara
Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO(2) Nanoparticles
title Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO(2) Nanoparticles
title_full Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO(2) Nanoparticles
title_fullStr Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO(2) Nanoparticles
title_full_unstemmed Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO(2) Nanoparticles
title_short Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO(2) Nanoparticles
title_sort application of reverse micelle sol–gel synthesis for bulk doping and heteroatoms surface enrichment in mo-doped tio(2) nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6471443/
https://www.ncbi.nlm.nih.gov/pubmed/30901826
http://dx.doi.org/10.3390/ma12060937
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