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Modified sol-gel process for synthesis of molybdenum oxide-doped titanium dioxide
A modified sol-gel method was developed for the synthesis of pure and transition-metal-doped titanium dioxide. The process involves the hydrolysis of titanium tetraisopropoxide, which was used as a catalyst precursor, and molybdenum chloride, which was used as a doping agent. The shape and size of t...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9168131/ https://www.ncbi.nlm.nih.gov/pubmed/35677843 http://dx.doi.org/10.1016/j.mex.2022.101742 |
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author | Mirghani, Mousab Salaheldeen Osman, Abdelbagi |
author_facet | Mirghani, Mousab Salaheldeen Osman, Abdelbagi |
author_sort | Mirghani, Mousab Salaheldeen |
collection | PubMed |
description | A modified sol-gel method was developed for the synthesis of pure and transition-metal-doped titanium dioxide. The process involves the hydrolysis of titanium tetraisopropoxide, which was used as a catalyst precursor, and molybdenum chloride, which was used as a doping agent. The shape and size of the final product were characterized by scanning electron microscopy, and the catalyst activity for the photocatalytic degradation of methylene blue in aqueous solutions was tested. The results indicate significant improvements in both the morphology and performance of the catalyst synthesized by the proposed method when compared to those obtained via the conventional approach using the same materials and quantities. • The main highlights of the proposed method are as follows. • Utilization of a double-jacketed cooling system to control and prevent temperature fluctuations during hydrolysis. • Ultrasonication during the reaction minimizes particle agglomeration during nanoparticle formation. • The use of two different alcohols and separation into two mixtures were experimentally demonstrated to delay gel formation, and hence, morphologically homogeneous catalyst nanoparticles were achieved. |
format | Online Article Text |
id | pubmed-9168131 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-91681312022-06-07 Modified sol-gel process for synthesis of molybdenum oxide-doped titanium dioxide Mirghani, Mousab Salaheldeen Osman, Abdelbagi MethodsX Method Article A modified sol-gel method was developed for the synthesis of pure and transition-metal-doped titanium dioxide. The process involves the hydrolysis of titanium tetraisopropoxide, which was used as a catalyst precursor, and molybdenum chloride, which was used as a doping agent. The shape and size of the final product were characterized by scanning electron microscopy, and the catalyst activity for the photocatalytic degradation of methylene blue in aqueous solutions was tested. The results indicate significant improvements in both the morphology and performance of the catalyst synthesized by the proposed method when compared to those obtained via the conventional approach using the same materials and quantities. • The main highlights of the proposed method are as follows. • Utilization of a double-jacketed cooling system to control and prevent temperature fluctuations during hydrolysis. • Ultrasonication during the reaction minimizes particle agglomeration during nanoparticle formation. • The use of two different alcohols and separation into two mixtures were experimentally demonstrated to delay gel formation, and hence, morphologically homogeneous catalyst nanoparticles were achieved. Elsevier 2022-05-27 /pmc/articles/PMC9168131/ /pubmed/35677843 http://dx.doi.org/10.1016/j.mex.2022.101742 Text en © 2022 The Author(s). Published by Elsevier B.V. https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Method Article Mirghani, Mousab Salaheldeen Osman, Abdelbagi Modified sol-gel process for synthesis of molybdenum oxide-doped titanium dioxide |
title | Modified sol-gel process for synthesis of molybdenum oxide-doped titanium dioxide |
title_full | Modified sol-gel process for synthesis of molybdenum oxide-doped titanium dioxide |
title_fullStr | Modified sol-gel process for synthesis of molybdenum oxide-doped titanium dioxide |
title_full_unstemmed | Modified sol-gel process for synthesis of molybdenum oxide-doped titanium dioxide |
title_short | Modified sol-gel process for synthesis of molybdenum oxide-doped titanium dioxide |
title_sort | modified sol-gel process for synthesis of molybdenum oxide-doped titanium dioxide |
topic | Method Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9168131/ https://www.ncbi.nlm.nih.gov/pubmed/35677843 http://dx.doi.org/10.1016/j.mex.2022.101742 |
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