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Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity

For the last several decades, semiconducting materials and nanocomposites have received a lot of interest in generating highly efficient photocatalysts to destroy organic pollutants and eradicate bacteria. This study uses a simple deposition and precipitation approach at ambient temperature to creat...

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Autores principales: Warshagha, Murad Z. A., Muneer, M., Althagafi, Ismail I., Ahmed, Saleh A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9909248/
https://www.ncbi.nlm.nih.gov/pubmed/36777948
http://dx.doi.org/10.1039/d2ra07626h
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author Warshagha, Murad Z. A.
Muneer, M.
Althagafi, Ismail I.
Ahmed, Saleh A.
author_facet Warshagha, Murad Z. A.
Muneer, M.
Althagafi, Ismail I.
Ahmed, Saleh A.
author_sort Warshagha, Murad Z. A.
collection PubMed
description For the last several decades, semiconducting materials and nanocomposites have received a lot of interest in generating highly efficient photocatalysts to destroy organic pollutants and eradicate bacteria. This study uses a simple deposition and precipitation approach at ambient temperature to create a unique and efficient AgI–CdO heterojunction. DRS, IR, SEM, EDS, XRD, EIS, and TEM were utilized to identify the material. SEM and TEM investigation depict the completely spherical, hexagonal forms and zigzag cubes for synthesized AgI–CdO. The EDX spectra reveal the presence of Ag, I, Cd, and O elements without impurity peaks showing that the prepared samples are highly pure. The activity of the synthesized materials was tested by degrading two different chromophoric dyes and a drug derivative (paracetamol) in an aqueous suspension under visible light. In addition, the activity of the most active catalyst was compared with Degussa P25, Fenton's reagent, and under sunlight for degradation of MB and RhB under similar conditions. Photolysis of paracetamol was also looked at using HPLC to identify intermediates formed in the photo-oxidation process. In addition, antibacterial activity was also investigated with the synthesized CdO–AgI nanocomposite in vitro against human pathogenic bacterial strains and compared with that of pure materials like AgI and standard ampicillin. The results showed excellent activity with the composite material, which could be due to the higher surface areas and the interactions between AgI and CdO nanoparticles. Quenching investigations revealed O(2)˙(−) and holes are principal reactive species. A viable photocatalytic degradation mechanism for organic pollutant elimination over the AgI–CdO nanocomposite has been sketched out based on the obtained results.
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spelling pubmed-99092482023-02-10 Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity Warshagha, Murad Z. A. Muneer, M. Althagafi, Ismail I. Ahmed, Saleh A. RSC Adv Chemistry For the last several decades, semiconducting materials and nanocomposites have received a lot of interest in generating highly efficient photocatalysts to destroy organic pollutants and eradicate bacteria. This study uses a simple deposition and precipitation approach at ambient temperature to create a unique and efficient AgI–CdO heterojunction. DRS, IR, SEM, EDS, XRD, EIS, and TEM were utilized to identify the material. SEM and TEM investigation depict the completely spherical, hexagonal forms and zigzag cubes for synthesized AgI–CdO. The EDX spectra reveal the presence of Ag, I, Cd, and O elements without impurity peaks showing that the prepared samples are highly pure. The activity of the synthesized materials was tested by degrading two different chromophoric dyes and a drug derivative (paracetamol) in an aqueous suspension under visible light. In addition, the activity of the most active catalyst was compared with Degussa P25, Fenton's reagent, and under sunlight for degradation of MB and RhB under similar conditions. Photolysis of paracetamol was also looked at using HPLC to identify intermediates formed in the photo-oxidation process. In addition, antibacterial activity was also investigated with the synthesized CdO–AgI nanocomposite in vitro against human pathogenic bacterial strains and compared with that of pure materials like AgI and standard ampicillin. The results showed excellent activity with the composite material, which could be due to the higher surface areas and the interactions between AgI and CdO nanoparticles. Quenching investigations revealed O(2)˙(−) and holes are principal reactive species. A viable photocatalytic degradation mechanism for organic pollutant elimination over the AgI–CdO nanocomposite has been sketched out based on the obtained results. The Royal Society of Chemistry 2023-02-09 /pmc/articles/PMC9909248/ /pubmed/36777948 http://dx.doi.org/10.1039/d2ra07626h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Warshagha, Murad Z. A.
Muneer, M.
Althagafi, Ismail I.
Ahmed, Saleh A.
Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity
title Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity
title_full Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity
title_fullStr Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity
title_full_unstemmed Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity
title_short Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity
title_sort highly efficient and stable agi–cdo nanocomposites for photocatalytic and antibacterial activity
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9909248/
https://www.ncbi.nlm.nih.gov/pubmed/36777948
http://dx.doi.org/10.1039/d2ra07626h
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