Green Synthesis of Homogeneous Gold Nanoparticles Using <i>Sargassum</i> spp. Extracts and Their Enhanced Catalytic Activity for Organic Dyes

<i>Sargassum</i> species-based extracts were used to carry out the synthesis of homogeneous gold nanoparticles. Various techniques were used to determine the characteristics and composition of the nanoparticles. The UV-Vis results showed that the 50% water/ethanol extract had the most re...

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Autores principales:	J. Luis López-Miranda, Gustavo A. Molina, Rodrigo Esparza, Marlen Alexis González-Reyna, Rodolfo Silva, Miriam Estévez
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	gold nanoparticles green synthesis <i>Sargassum</i> spp. organic dye water treatment Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/67b11ed561994bd79381f2ad4fd227c7
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spelling	oai:doaj.org-article:67b11ed561994bd79381f2ad4fd227c72021-11-25T19:08:02ZGreen Synthesis of Homogeneous Gold Nanoparticles Using <i>Sargassum</i> spp. Extracts and Their Enhanced Catalytic Activity for Organic Dyes10.3390/toxics91102802305-6304https://doaj.org/article/67b11ed561994bd79381f2ad4fd227c72021-10-01T00:00:00Zhttps://www.mdpi.com/2305-6304/9/11/280https://doaj.org/toc/2305-6304<i>Sargassum</i> species-based extracts were used to carry out the synthesis of homogeneous gold nanoparticles. Various techniques were used to determine the characteristics and composition of the nanoparticles. The UV-Vis results showed that the 50% water/ethanol extract had the most reducing agents and stabilizers. Therefore, this type of extract was used to synthesize nanoparticles and for their subsequent characterization. Crystallinity and crystal size were evaluated using X-ray diffraction. Size and morphology were analyzed using scanning electron microscopy, showing that the gold nanoparticles were mostly spherical, with a size range of 15–30 nm. The catalytic activity of the gold nanoparticles was evaluated through the degradation of organic dyes: methylene blue, methyl orange, and methyl red. The degradation rates were different, depending on the nature of each dye, the simplest to degrade was methylene blue and methyl red was the most difficult to degrade. The results indicated that the use of <i>Sargassum</i> spp. for the synthesis of gold nanoparticles has potential in the remediation of water that is contaminated with organic dyes. Moreover, given the recent serious environmental and economic problems caused by the overpopulation of <i>Sargassum</i> spp. in the Mexican Caribbean, the findings hold promise for their practical and sustainable use in the synthesis of nanomaterials.J. Luis López-MirandaGustavo A. MolinaRodrigo EsparzaMarlen Alexis González-ReynaRodolfo SilvaMiriam EstévezMDPI AGarticlegold nanoparticlesgreen synthesis<i>Sargassum</i> spp.organic dyewater treatmentChemical technologyTP1-1185ENToxics, Vol 9, Iss 280, p 280 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	gold nanoparticles green synthesis <i>Sargassum</i> spp. organic dye water treatment Chemical technology TP1-1185
spellingShingle	gold nanoparticles green synthesis <i>Sargassum</i> spp. organic dye water treatment Chemical technology TP1-1185 J. Luis López-Miranda Gustavo A. Molina Rodrigo Esparza Marlen Alexis González-Reyna Rodolfo Silva Miriam Estévez Green Synthesis of Homogeneous Gold Nanoparticles Using <i>Sargassum</i> spp. Extracts and Their Enhanced Catalytic Activity for Organic Dyes
description	<i>Sargassum</i> species-based extracts were used to carry out the synthesis of homogeneous gold nanoparticles. Various techniques were used to determine the characteristics and composition of the nanoparticles. The UV-Vis results showed that the 50% water/ethanol extract had the most reducing agents and stabilizers. Therefore, this type of extract was used to synthesize nanoparticles and for their subsequent characterization. Crystallinity and crystal size were evaluated using X-ray diffraction. Size and morphology were analyzed using scanning electron microscopy, showing that the gold nanoparticles were mostly spherical, with a size range of 15–30 nm. The catalytic activity of the gold nanoparticles was evaluated through the degradation of organic dyes: methylene blue, methyl orange, and methyl red. The degradation rates were different, depending on the nature of each dye, the simplest to degrade was methylene blue and methyl red was the most difficult to degrade. The results indicated that the use of <i>Sargassum</i> spp. for the synthesis of gold nanoparticles has potential in the remediation of water that is contaminated with organic dyes. Moreover, given the recent serious environmental and economic problems caused by the overpopulation of <i>Sargassum</i> spp. in the Mexican Caribbean, the findings hold promise for their practical and sustainable use in the synthesis of nanomaterials.
format	article
author	J. Luis López-Miranda Gustavo A. Molina Rodrigo Esparza Marlen Alexis González-Reyna Rodolfo Silva Miriam Estévez
author_facet	J. Luis López-Miranda Gustavo A. Molina Rodrigo Esparza Marlen Alexis González-Reyna Rodolfo Silva Miriam Estévez
author_sort	J. Luis López-Miranda
title	Green Synthesis of Homogeneous Gold Nanoparticles Using <i>Sargassum</i> spp. Extracts and Their Enhanced Catalytic Activity for Organic Dyes
title_short	Green Synthesis of Homogeneous Gold Nanoparticles Using <i>Sargassum</i> spp. Extracts and Their Enhanced Catalytic Activity for Organic Dyes
title_full	Green Synthesis of Homogeneous Gold Nanoparticles Using <i>Sargassum</i> spp. Extracts and Their Enhanced Catalytic Activity for Organic Dyes
title_fullStr	Green Synthesis of Homogeneous Gold Nanoparticles Using <i>Sargassum</i> spp. Extracts and Their Enhanced Catalytic Activity for Organic Dyes
title_full_unstemmed	Green Synthesis of Homogeneous Gold Nanoparticles Using <i>Sargassum</i> spp. Extracts and Their Enhanced Catalytic Activity for Organic Dyes
title_sort	green synthesis of homogeneous gold nanoparticles using <i>sargassum</i> spp. extracts and their enhanced catalytic activity for organic dyes
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/67b11ed561994bd79381f2ad4fd227c7
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Green Synthesis of Homogeneous Gold Nanoparticles Using <i>Sargassum</i> spp. Extracts and Their Enhanced Catalytic Activity for Organic Dyes

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