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Structure, optical properties and antimicrobial activities of MgO–Bi(2−x)Cr(x)O(3) nanocomposites prepared via solvent-deficient method
MgO–Bi(2−x)Cr(x)O(3) nanocomposites for x = 0 and 0.07 were fabricated using the solvent-deficient route. X-ray diffraction method, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDXA) and UV–Vis spectroscopy were employed to study the properties. The samples were also evaluat...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9226114/ https://www.ncbi.nlm.nih.gov/pubmed/35739169 http://dx.doi.org/10.1038/s41598-022-14811-9 |
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author | Al-Sharabi, Annas Sada’a, Kholod S. S. AL-Osta, Ahmed Abd-Shukor, R. |
author_facet | Al-Sharabi, Annas Sada’a, Kholod S. S. AL-Osta, Ahmed Abd-Shukor, R. |
author_sort | Al-Sharabi, Annas |
collection | PubMed |
description | MgO–Bi(2−x)Cr(x)O(3) nanocomposites for x = 0 and 0.07 were fabricated using the solvent-deficient route. X-ray diffraction method, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDXA) and UV–Vis spectroscopy were employed to study the properties. The samples were also evaluated for the antibacterial activity. The x = 0 sample showed a dominant monoclinic crystalline structure of [Formula: see text] phase. No peaks attributed to MgO were observed. Cr-doped [Formula: see text] in which Bi was substituted showed that [Formula: see text] phase was also present in the [Formula: see text] composite. The Scherrer formula was employed to determine the crystallite size of the samples. The Cr-doped sample showed a decrease in the crystallite size. The microstructures of the non-doped MgO–Bi(2)O(3) and MgO–Bi(1.93)Cr(0.07)O(3) composites consisted of micrometer sized grains and were uniformly distributed. Direct transition energy gap, [Formula: see text] decreased from 3.14 to 2.77 eV with Cr-doping as determined from UV–Vis spectroscopy. The Cr-doped [Formula: see text] nanocomposites exhibited two energy gaps at 2.36 and 2.76 eV. The antibacterial activity was determined against gram-negative bacteria (Salmonella typhimurium and Pseudomonas aeruginosa) and gram-positive bacteria (Staphylococcus aureus) by disc diffusion method. Cr-doping led to a decrease in inhibitory activity of MgO–Bi(2−x)Cr(x)O(3) nanocomposite against the various types of bacteria. |
format | Online Article Text |
id | pubmed-9226114 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-92261142022-06-25 Structure, optical properties and antimicrobial activities of MgO–Bi(2−x)Cr(x)O(3) nanocomposites prepared via solvent-deficient method Al-Sharabi, Annas Sada’a, Kholod S. S. AL-Osta, Ahmed Abd-Shukor, R. Sci Rep Article MgO–Bi(2−x)Cr(x)O(3) nanocomposites for x = 0 and 0.07 were fabricated using the solvent-deficient route. X-ray diffraction method, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDXA) and UV–Vis spectroscopy were employed to study the properties. The samples were also evaluated for the antibacterial activity. The x = 0 sample showed a dominant monoclinic crystalline structure of [Formula: see text] phase. No peaks attributed to MgO were observed. Cr-doped [Formula: see text] in which Bi was substituted showed that [Formula: see text] phase was also present in the [Formula: see text] composite. The Scherrer formula was employed to determine the crystallite size of the samples. The Cr-doped sample showed a decrease in the crystallite size. The microstructures of the non-doped MgO–Bi(2)O(3) and MgO–Bi(1.93)Cr(0.07)O(3) composites consisted of micrometer sized grains and were uniformly distributed. Direct transition energy gap, [Formula: see text] decreased from 3.14 to 2.77 eV with Cr-doping as determined from UV–Vis spectroscopy. The Cr-doped [Formula: see text] nanocomposites exhibited two energy gaps at 2.36 and 2.76 eV. The antibacterial activity was determined against gram-negative bacteria (Salmonella typhimurium and Pseudomonas aeruginosa) and gram-positive bacteria (Staphylococcus aureus) by disc diffusion method. Cr-doping led to a decrease in inhibitory activity of MgO–Bi(2−x)Cr(x)O(3) nanocomposite against the various types of bacteria. Nature Publishing Group UK 2022-06-23 /pmc/articles/PMC9226114/ /pubmed/35739169 http://dx.doi.org/10.1038/s41598-022-14811-9 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Al-Sharabi, Annas Sada’a, Kholod S. S. AL-Osta, Ahmed Abd-Shukor, R. Structure, optical properties and antimicrobial activities of MgO–Bi(2−x)Cr(x)O(3) nanocomposites prepared via solvent-deficient method |
title | Structure, optical properties and antimicrobial activities of MgO–Bi(2−x)Cr(x)O(3) nanocomposites prepared via solvent-deficient method |
title_full | Structure, optical properties and antimicrobial activities of MgO–Bi(2−x)Cr(x)O(3) nanocomposites prepared via solvent-deficient method |
title_fullStr | Structure, optical properties and antimicrobial activities of MgO–Bi(2−x)Cr(x)O(3) nanocomposites prepared via solvent-deficient method |
title_full_unstemmed | Structure, optical properties and antimicrobial activities of MgO–Bi(2−x)Cr(x)O(3) nanocomposites prepared via solvent-deficient method |
title_short | Structure, optical properties and antimicrobial activities of MgO–Bi(2−x)Cr(x)O(3) nanocomposites prepared via solvent-deficient method |
title_sort | structure, optical properties and antimicrobial activities of mgo–bi(2−x)cr(x)o(3) nanocomposites prepared via solvent-deficient method |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9226114/ https://www.ncbi.nlm.nih.gov/pubmed/35739169 http://dx.doi.org/10.1038/s41598-022-14811-9 |
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