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Light-Assisted Synthesis of Silver and Gold Nanoparticles by New Benzophenone Derivatives

[Image: see text] Benzophenone derivatives were evaluated as new photoinitiators in combination with triethylamine (TEA) and iodonium salt (Iod) for very rapid and efficient formation of metal nanoparticles in an organic solvent, by which silver and gold ions were reduced under light at 419 nm (phot...

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Autores principales: Alnafisah, Abrar S., Alqrairy, Elaf, Tar, Haja, M Alminderej, Fahad, Aroua, Lotfi M., Graff, Bernadette, Lalevee, Jacques
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9878651/
https://www.ncbi.nlm.nih.gov/pubmed/36713746
http://dx.doi.org/10.1021/acsomega.2c06655
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author Alnafisah, Abrar S.
Alqrairy, Elaf
Tar, Haja
M Alminderej, Fahad
Aroua, Lotfi M.
Graff, Bernadette
Lalevee, Jacques
author_facet Alnafisah, Abrar S.
Alqrairy, Elaf
Tar, Haja
M Alminderej, Fahad
Aroua, Lotfi M.
Graff, Bernadette
Lalevee, Jacques
author_sort Alnafisah, Abrar S.
collection PubMed
description [Image: see text] Benzophenone derivatives were evaluated as new photoinitiators in combination with triethylamine (TEA) and iodonium salt (Iod) for very rapid and efficient formation of metal nanoparticles in an organic solvent, by which silver and gold ions were reduced under light at 419 nm (photoreactor) with an irradiation intensity of 250 microwatts/cm(2). The new benzophenone derivatives combined with TEA/Iod salt showed good production of metal nanoparticles (Au(0) and Ag(0)) and a small size of nanoparticles of around 4–13 nm. The photochemical mechanisms for the production of initiating radicals were studied using cyclic voltammetry, where a negative ΔG of around −1.96 eV was obtained, which made the process favorable. The obtained results proved the formation of amine and phenyl radicals, which led to the reduction of gold III chloride or silver ions to the gold and silver NPs. The UV–vis spectroscopy technique was used as a very beneficial tool for the surface plasmon resonance band detection of metal nanoparticles. To sum up the results, we have observed that nanoparticles (NPs) were distributed differently in different photoinitiator systems and the particle size also changed by changing the system of initiation. In comparison to the system alone, not only were the nanoparticles smaller but they were also generated within a shorter period of irradiation time for the system BP\Iod\TEA. Finally, the quenching process of benzophenone fluorescence by the gold and silver nanoparticles was investigated.
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spelling pubmed-98786512023-01-27 Light-Assisted Synthesis of Silver and Gold Nanoparticles by New Benzophenone Derivatives Alnafisah, Abrar S. Alqrairy, Elaf Tar, Haja M Alminderej, Fahad Aroua, Lotfi M. Graff, Bernadette Lalevee, Jacques ACS Omega [Image: see text] Benzophenone derivatives were evaluated as new photoinitiators in combination with triethylamine (TEA) and iodonium salt (Iod) for very rapid and efficient formation of metal nanoparticles in an organic solvent, by which silver and gold ions were reduced under light at 419 nm (photoreactor) with an irradiation intensity of 250 microwatts/cm(2). The new benzophenone derivatives combined with TEA/Iod salt showed good production of metal nanoparticles (Au(0) and Ag(0)) and a small size of nanoparticles of around 4–13 nm. The photochemical mechanisms for the production of initiating radicals were studied using cyclic voltammetry, where a negative ΔG of around −1.96 eV was obtained, which made the process favorable. The obtained results proved the formation of amine and phenyl radicals, which led to the reduction of gold III chloride or silver ions to the gold and silver NPs. The UV–vis spectroscopy technique was used as a very beneficial tool for the surface plasmon resonance band detection of metal nanoparticles. To sum up the results, we have observed that nanoparticles (NPs) were distributed differently in different photoinitiator systems and the particle size also changed by changing the system of initiation. In comparison to the system alone, not only were the nanoparticles smaller but they were also generated within a shorter period of irradiation time for the system BP\Iod\TEA. Finally, the quenching process of benzophenone fluorescence by the gold and silver nanoparticles was investigated. American Chemical Society 2023-01-11 /pmc/articles/PMC9878651/ /pubmed/36713746 http://dx.doi.org/10.1021/acsomega.2c06655 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Alnafisah, Abrar S.
Alqrairy, Elaf
Tar, Haja
M Alminderej, Fahad
Aroua, Lotfi M.
Graff, Bernadette
Lalevee, Jacques
Light-Assisted Synthesis of Silver and Gold Nanoparticles by New Benzophenone Derivatives
title Light-Assisted Synthesis of Silver and Gold Nanoparticles by New Benzophenone Derivatives
title_full Light-Assisted Synthesis of Silver and Gold Nanoparticles by New Benzophenone Derivatives
title_fullStr Light-Assisted Synthesis of Silver and Gold Nanoparticles by New Benzophenone Derivatives
title_full_unstemmed Light-Assisted Synthesis of Silver and Gold Nanoparticles by New Benzophenone Derivatives
title_short Light-Assisted Synthesis of Silver and Gold Nanoparticles by New Benzophenone Derivatives
title_sort light-assisted synthesis of silver and gold nanoparticles by new benzophenone derivatives
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9878651/
https://www.ncbi.nlm.nih.gov/pubmed/36713746
http://dx.doi.org/10.1021/acsomega.2c06655
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