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Atomic-Scale Investigation on the Evolution of Tio(2)-Anatase Prepared by a Sonochemical Route and Treated with NaOH
To date, the formation mechanisms of TiO(2), as well as its heterostructures, have not been clarified. Moreover, detailed research on the transition from a tetragonal anatase phase to the monoclinic phase of the TiO(2)(B) phase and their interface structure has been quite limited until now. In the p...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7040896/ https://www.ncbi.nlm.nih.gov/pubmed/32033021 http://dx.doi.org/10.3390/ma13030685 |
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author | Victoria Dimas, Berenice Hernández Pérez, Isaías Febles, Vicente Garibay Arceo, Lucía Díaz Barriga Parra, Raúl Suárez Rivera Olvera, Jesús Noé Luna Paz, Ricardo Máximo, Dulce Viridiana Melo Reyes, Leonardo González |
author_facet | Victoria Dimas, Berenice Hernández Pérez, Isaías Febles, Vicente Garibay Arceo, Lucía Díaz Barriga Parra, Raúl Suárez Rivera Olvera, Jesús Noé Luna Paz, Ricardo Máximo, Dulce Viridiana Melo Reyes, Leonardo González |
author_sort | Victoria Dimas, Berenice |
collection | PubMed |
description | To date, the formation mechanisms of TiO(2), as well as its heterostructures, have not been clarified. Moreover, detailed research on the transition from a tetragonal anatase phase to the monoclinic phase of the TiO(2)(B) phase and their interface structure has been quite limited until now. In the present study, we report on the sonochemical synthesis of TiO(2)-anatase with a crystallite size of 5.2 ± 1.5 nm under different NaOH concentrations via the hydrothermal method. The use of alkaline solution and the effect of the temperature and reaction time on the formation and structural properties of TiO(2)-anatase nanopowders were studied. The effects of NaOH concentration on the formation and transformation of titanate structures are subject to thermal effects that stem from the redistribution of energy in the system. These mechanisms could be attributed to three phenomena: (1) the self-assembly of nanofibers and nanosheets, (2) the Ostwald ripening process, and (3) the self-development of hollow TiO(2) mesostructures. |
format | Online Article Text |
id | pubmed-7040896 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70408962020-03-09 Atomic-Scale Investigation on the Evolution of Tio(2)-Anatase Prepared by a Sonochemical Route and Treated with NaOH Victoria Dimas, Berenice Hernández Pérez, Isaías Febles, Vicente Garibay Arceo, Lucía Díaz Barriga Parra, Raúl Suárez Rivera Olvera, Jesús Noé Luna Paz, Ricardo Máximo, Dulce Viridiana Melo Reyes, Leonardo González Materials (Basel) Article To date, the formation mechanisms of TiO(2), as well as its heterostructures, have not been clarified. Moreover, detailed research on the transition from a tetragonal anatase phase to the monoclinic phase of the TiO(2)(B) phase and their interface structure has been quite limited until now. In the present study, we report on the sonochemical synthesis of TiO(2)-anatase with a crystallite size of 5.2 ± 1.5 nm under different NaOH concentrations via the hydrothermal method. The use of alkaline solution and the effect of the temperature and reaction time on the formation and structural properties of TiO(2)-anatase nanopowders were studied. The effects of NaOH concentration on the formation and transformation of titanate structures are subject to thermal effects that stem from the redistribution of energy in the system. These mechanisms could be attributed to three phenomena: (1) the self-assembly of nanofibers and nanosheets, (2) the Ostwald ripening process, and (3) the self-development of hollow TiO(2) mesostructures. MDPI 2020-02-04 /pmc/articles/PMC7040896/ /pubmed/32033021 http://dx.doi.org/10.3390/ma13030685 Text en © 2020 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 Victoria Dimas, Berenice Hernández Pérez, Isaías Febles, Vicente Garibay Arceo, Lucía Díaz Barriga Parra, Raúl Suárez Rivera Olvera, Jesús Noé Luna Paz, Ricardo Máximo, Dulce Viridiana Melo Reyes, Leonardo González Atomic-Scale Investigation on the Evolution of Tio(2)-Anatase Prepared by a Sonochemical Route and Treated with NaOH |
title | Atomic-Scale Investigation on the Evolution of Tio(2)-Anatase Prepared by a Sonochemical Route and Treated with NaOH |
title_full | Atomic-Scale Investigation on the Evolution of Tio(2)-Anatase Prepared by a Sonochemical Route and Treated with NaOH |
title_fullStr | Atomic-Scale Investigation on the Evolution of Tio(2)-Anatase Prepared by a Sonochemical Route and Treated with NaOH |
title_full_unstemmed | Atomic-Scale Investigation on the Evolution of Tio(2)-Anatase Prepared by a Sonochemical Route and Treated with NaOH |
title_short | Atomic-Scale Investigation on the Evolution of Tio(2)-Anatase Prepared by a Sonochemical Route and Treated with NaOH |
title_sort | atomic-scale investigation on the evolution of tio(2)-anatase prepared by a sonochemical route and treated with naoh |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7040896/ https://www.ncbi.nlm.nih.gov/pubmed/32033021 http://dx.doi.org/10.3390/ma13030685 |
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