An Investigation on the Synthesis of Molybdenum Oxide and Its Silica Nanoparticle Composites for Dye Degradation
The molybdenum oxide (MoO(3)) and MoO(3)@SiO(2) nanoparticles were successfully prepared using the chemical bath deposition (CBD) method. The photocatalytic activities of molybdenum oxide (MoO(3)), SiO(2), and MoO(3)@SiO(2) nanoparticles composite have shown a synergistic photocatalytic effect of Si...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761561/ https://www.ncbi.nlm.nih.gov/pubmed/33276515 http://dx.doi.org/10.3390/nano10122409 |
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author | Kamoun, Olfa Gassoumi, Abdelaziz Kouass, Salah Alhalaili, Badriyah Vidu, Ruxandra Turki-Kamoun, Najoua |
author_facet | Kamoun, Olfa Gassoumi, Abdelaziz Kouass, Salah Alhalaili, Badriyah Vidu, Ruxandra Turki-Kamoun, Najoua |
author_sort | Kamoun, Olfa |
collection | PubMed |
description | The molybdenum oxide (MoO(3)) and MoO(3)@SiO(2) nanoparticles were successfully prepared using the chemical bath deposition (CBD) method. The photocatalytic activities of molybdenum oxide (MoO(3)), SiO(2), and MoO(3)@SiO(2) nanoparticles composite have shown a synergistic photocatalytic effect of SiO(2) combined with MoO(3). The first-order degradation rate constants for MoO(3), SiO(2), and MoO(3)@SiO(2) nanocomposite were 10.3 × 10(−3) min(−1), 15.1 × 10(−3) min(−1), and 16.3 × 10(−3) min(−1), respectively. The MoO(3)@SiO(2) composite showed degradation efficiencies in the methylene blue solution close to 100% after 60 min of UV irradiation. The X-ray diffraction (XRD) showed that the MoO(3) powder has a hexagonal crystal structure and the silica is the tridymite type of SiO(2). The crystallite size was about 94 nm, 32 nm, and 125 nm for MoO(3), silica, and MoO(3)@SiO(2), respectively, as calculated by the Scherrer equation. The scanning electron microscopy (SEM) images revealed that the MoO(3) powder consisted of a uniform hexagonal structure; the silica showed a rod-like micro-flake morphology and the MoO(3)@SiO(2) composite had the appearance of coral-like structures. |
format | Online Article Text |
id | pubmed-7761561 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-77615612020-12-26 An Investigation on the Synthesis of Molybdenum Oxide and Its Silica Nanoparticle Composites for Dye Degradation Kamoun, Olfa Gassoumi, Abdelaziz Kouass, Salah Alhalaili, Badriyah Vidu, Ruxandra Turki-Kamoun, Najoua Nanomaterials (Basel) Article The molybdenum oxide (MoO(3)) and MoO(3)@SiO(2) nanoparticles were successfully prepared using the chemical bath deposition (CBD) method. The photocatalytic activities of molybdenum oxide (MoO(3)), SiO(2), and MoO(3)@SiO(2) nanoparticles composite have shown a synergistic photocatalytic effect of SiO(2) combined with MoO(3). The first-order degradation rate constants for MoO(3), SiO(2), and MoO(3)@SiO(2) nanocomposite were 10.3 × 10(−3) min(−1), 15.1 × 10(−3) min(−1), and 16.3 × 10(−3) min(−1), respectively. The MoO(3)@SiO(2) composite showed degradation efficiencies in the methylene blue solution close to 100% after 60 min of UV irradiation. The X-ray diffraction (XRD) showed that the MoO(3) powder has a hexagonal crystal structure and the silica is the tridymite type of SiO(2). The crystallite size was about 94 nm, 32 nm, and 125 nm for MoO(3), silica, and MoO(3)@SiO(2), respectively, as calculated by the Scherrer equation. The scanning electron microscopy (SEM) images revealed that the MoO(3) powder consisted of a uniform hexagonal structure; the silica showed a rod-like micro-flake morphology and the MoO(3)@SiO(2) composite had the appearance of coral-like structures. MDPI 2020-12-02 /pmc/articles/PMC7761561/ /pubmed/33276515 http://dx.doi.org/10.3390/nano10122409 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 Kamoun, Olfa Gassoumi, Abdelaziz Kouass, Salah Alhalaili, Badriyah Vidu, Ruxandra Turki-Kamoun, Najoua An Investigation on the Synthesis of Molybdenum Oxide and Its Silica Nanoparticle Composites for Dye Degradation |
title | An Investigation on the Synthesis of Molybdenum Oxide and Its Silica Nanoparticle Composites for Dye Degradation |
title_full | An Investigation on the Synthesis of Molybdenum Oxide and Its Silica Nanoparticle Composites for Dye Degradation |
title_fullStr | An Investigation on the Synthesis of Molybdenum Oxide and Its Silica Nanoparticle Composites for Dye Degradation |
title_full_unstemmed | An Investigation on the Synthesis of Molybdenum Oxide and Its Silica Nanoparticle Composites for Dye Degradation |
title_short | An Investigation on the Synthesis of Molybdenum Oxide and Its Silica Nanoparticle Composites for Dye Degradation |
title_sort | investigation on the synthesis of molybdenum oxide and its silica nanoparticle composites for dye degradation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761561/ https://www.ncbi.nlm.nih.gov/pubmed/33276515 http://dx.doi.org/10.3390/nano10122409 |
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