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Enhanced photocatalytic degradation of toxic contaminants using Dy(2)O(3)-SiO(2) ceramic nanostructured materials fabricated by a new, simple and rapid sonochemical approach
The present study is on the fabrication of new photocatalytic nanocomposites (Dy(2)O(3)-SiO(2)) employing a basic agent, tetraethylenepentamine (Tetrene), through a simple, efficient and, quick sonochemical approach. The features of the fabricated photocatalytic nanocomposite were examined employing...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8799595/ https://www.ncbi.nlm.nih.gov/pubmed/34959201 http://dx.doi.org/10.1016/j.ultsonch.2021.105892 |
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author | Mahdavi, Kamran Zinatloo-Ajabshir, Sahar Yousif, Qahtan A. Salavati-Niasari, Masoud |
author_facet | Mahdavi, Kamran Zinatloo-Ajabshir, Sahar Yousif, Qahtan A. Salavati-Niasari, Masoud |
author_sort | Mahdavi, Kamran |
collection | PubMed |
description | The present study is on the fabrication of new photocatalytic nanocomposites (Dy(2)O(3)-SiO(2)) employing a basic agent, tetraethylenepentamine (Tetrene), through a simple, efficient and, quick sonochemical approach. The features of the fabricated photocatalytic nanocomposite were examined employing a variety of microscopic and spectroscopic methods such as XRD, EDS, TEM, FTIR, DRS, and FESEM. The outcomes of morphological studies demonstrated that by proper tuning of sonication time and ultrasonic power (10 min and 400 W), a porous nanocomposite composed of sphere-shaped nanoparticles with a particle size in the range of 20 to 60 nm could be fabricated. The energy gap for the binary Dy(2)O(3)-SiO(2) nanophotocatalyst was determined to be 3.41 eV, making these nanocomposite favorable for removing contaminants. The photocatalytic performance of the optimal nanocomposite sample was tested for photodecomposition of several contaminants including erythrosine, thymol blue, eriochrome black T, Acid Red 14, methyl orange, malachite green, and Rhodamine B. The binary Dy(2)O(3)-SiO(2) nanophotocatalyst exhibited superior efficiency toward the decomposition of the studied contaminants. It was able to degrade the erythrosine pollutant more effectively (92.9%). Optimization studies for the photocatalytic decomposition of each contaminant demonstrated that the best performance could be achieved at a specific amount of contaminant and nanocatalyst. Trapping experiments illustrated that hydroxyl radicals were more effectively involved in the decomposition of contaminant molecules by Dy(2)O(3)-SiO(2) nanophotocatalyst. |
format | Online Article Text |
id | pubmed-8799595 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-87995952022-02-03 Enhanced photocatalytic degradation of toxic contaminants using Dy(2)O(3)-SiO(2) ceramic nanostructured materials fabricated by a new, simple and rapid sonochemical approach Mahdavi, Kamran Zinatloo-Ajabshir, Sahar Yousif, Qahtan A. Salavati-Niasari, Masoud Ultrason Sonochem Short Communication The present study is on the fabrication of new photocatalytic nanocomposites (Dy(2)O(3)-SiO(2)) employing a basic agent, tetraethylenepentamine (Tetrene), through a simple, efficient and, quick sonochemical approach. The features of the fabricated photocatalytic nanocomposite were examined employing a variety of microscopic and spectroscopic methods such as XRD, EDS, TEM, FTIR, DRS, and FESEM. The outcomes of morphological studies demonstrated that by proper tuning of sonication time and ultrasonic power (10 min and 400 W), a porous nanocomposite composed of sphere-shaped nanoparticles with a particle size in the range of 20 to 60 nm could be fabricated. The energy gap for the binary Dy(2)O(3)-SiO(2) nanophotocatalyst was determined to be 3.41 eV, making these nanocomposite favorable for removing contaminants. The photocatalytic performance of the optimal nanocomposite sample was tested for photodecomposition of several contaminants including erythrosine, thymol blue, eriochrome black T, Acid Red 14, methyl orange, malachite green, and Rhodamine B. The binary Dy(2)O(3)-SiO(2) nanophotocatalyst exhibited superior efficiency toward the decomposition of the studied contaminants. It was able to degrade the erythrosine pollutant more effectively (92.9%). Optimization studies for the photocatalytic decomposition of each contaminant demonstrated that the best performance could be achieved at a specific amount of contaminant and nanocatalyst. Trapping experiments illustrated that hydroxyl radicals were more effectively involved in the decomposition of contaminant molecules by Dy(2)O(3)-SiO(2) nanophotocatalyst. Elsevier 2021-12-24 /pmc/articles/PMC8799595/ /pubmed/34959201 http://dx.doi.org/10.1016/j.ultsonch.2021.105892 Text en © 2021 The Author(s) 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 | Short Communication Mahdavi, Kamran Zinatloo-Ajabshir, Sahar Yousif, Qahtan A. Salavati-Niasari, Masoud Enhanced photocatalytic degradation of toxic contaminants using Dy(2)O(3)-SiO(2) ceramic nanostructured materials fabricated by a new, simple and rapid sonochemical approach |
title | Enhanced photocatalytic degradation of toxic contaminants using Dy(2)O(3)-SiO(2) ceramic nanostructured materials fabricated by a new, simple and rapid sonochemical approach |
title_full | Enhanced photocatalytic degradation of toxic contaminants using Dy(2)O(3)-SiO(2) ceramic nanostructured materials fabricated by a new, simple and rapid sonochemical approach |
title_fullStr | Enhanced photocatalytic degradation of toxic contaminants using Dy(2)O(3)-SiO(2) ceramic nanostructured materials fabricated by a new, simple and rapid sonochemical approach |
title_full_unstemmed | Enhanced photocatalytic degradation of toxic contaminants using Dy(2)O(3)-SiO(2) ceramic nanostructured materials fabricated by a new, simple and rapid sonochemical approach |
title_short | Enhanced photocatalytic degradation of toxic contaminants using Dy(2)O(3)-SiO(2) ceramic nanostructured materials fabricated by a new, simple and rapid sonochemical approach |
title_sort | enhanced photocatalytic degradation of toxic contaminants using dy(2)o(3)-sio(2) ceramic nanostructured materials fabricated by a new, simple and rapid sonochemical approach |
topic | Short Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8799595/ https://www.ncbi.nlm.nih.gov/pubmed/34959201 http://dx.doi.org/10.1016/j.ultsonch.2021.105892 |
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