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Sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles and sonocatalytic degradation of methyl orange
In this research, a sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles is proposed. The proposed synthesis methodology incorporates the use of Piper auritum (an endemic plant) as reducing agent and in a complementary way, an ultrasonication process to promote the synthesis o...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Elsevier
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8027903/ https://www.ncbi.nlm.nih.gov/pubmed/33774587 http://dx.doi.org/10.1016/j.ultsonch.2021.105521 |
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author | Ruíz-Baltazar, Álvaro de Jesús |
author_facet | Ruíz-Baltazar, Álvaro de Jesús |
author_sort | Ruíz-Baltazar, Álvaro de Jesús |
collection | PubMed |
description | In this research, a sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles is proposed. The proposed synthesis methodology incorporates the use of Piper auritum (an endemic plant) as reducing agent and in a complementary way, an ultrasonication process to promote the synthesis of the plasmonic/magnetic nanoparticles (Au/Fe(3)O(4)). The synergic effect of the green and sonochemical synthesis favors the well-dispersion of precursor salts and the subsequent growth of the Au/Fe(3)O(4) nanoparticles. The hybrid green/sonochemical process generates an economical, ecological and simplified alternative to synthesizing Au/Fe(3)O(4) nanoparticles whit enhanced catalytic activity, pronounced magnetic properties. The morphological, chemical and structural characterization was carried out by high- resolution Scanning electron microscopy (HR-SEM), Energy Dispersive X-Ray Spectroscopy (EDS) and X-Ray diffraction (XRD), respectively. Ultraviolet–visible (UV–vis) and X-ray photoelectron (XPS) spectroscopy confirm the Au/Fe(3)O(4) nanoparticles obtention. The magnetic properties were evaluated by a vibrating sample magnetometer (VSM). Superparamagnetic behavior, of the Au/ Fe(3)O(4) nanoparticles was observed (M(s) = 51 emu/g and H(c) = 30 Oe at 300 K). Finally, the catalytic activity was evaluated by sonocatalytic degradation of methyl orange (MO). In this stage, it was possible to achieve a removal percentage of 91.2% at 15 min of the sonocatalytic process (160 W/42 kHz). The initial concentration of the MO was 20 mg L(−1), and the Fe3O4-Au dosage was 0.075 gL(−1). The MO degradation process was described mathematically by four kinetic adsorption models: Pseudo-first order model, Pseudo-second order model, Elovich and intraparticle diffusion model. |
format | Online Article Text |
id | pubmed-8027903 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-80279032021-04-13 Sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles and sonocatalytic degradation of methyl orange Ruíz-Baltazar, Álvaro de Jesús Ultrason Sonochem Original Research Article In this research, a sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles is proposed. The proposed synthesis methodology incorporates the use of Piper auritum (an endemic plant) as reducing agent and in a complementary way, an ultrasonication process to promote the synthesis of the plasmonic/magnetic nanoparticles (Au/Fe(3)O(4)). The synergic effect of the green and sonochemical synthesis favors the well-dispersion of precursor salts and the subsequent growth of the Au/Fe(3)O(4) nanoparticles. The hybrid green/sonochemical process generates an economical, ecological and simplified alternative to synthesizing Au/Fe(3)O(4) nanoparticles whit enhanced catalytic activity, pronounced magnetic properties. The morphological, chemical and structural characterization was carried out by high- resolution Scanning electron microscopy (HR-SEM), Energy Dispersive X-Ray Spectroscopy (EDS) and X-Ray diffraction (XRD), respectively. Ultraviolet–visible (UV–vis) and X-ray photoelectron (XPS) spectroscopy confirm the Au/Fe(3)O(4) nanoparticles obtention. The magnetic properties were evaluated by a vibrating sample magnetometer (VSM). Superparamagnetic behavior, of the Au/ Fe(3)O(4) nanoparticles was observed (M(s) = 51 emu/g and H(c) = 30 Oe at 300 K). Finally, the catalytic activity was evaluated by sonocatalytic degradation of methyl orange (MO). In this stage, it was possible to achieve a removal percentage of 91.2% at 15 min of the sonocatalytic process (160 W/42 kHz). The initial concentration of the MO was 20 mg L(−1), and the Fe3O4-Au dosage was 0.075 gL(−1). The MO degradation process was described mathematically by four kinetic adsorption models: Pseudo-first order model, Pseudo-second order model, Elovich and intraparticle diffusion model. Elsevier 2021-03-15 /pmc/articles/PMC8027903/ /pubmed/33774587 http://dx.doi.org/10.1016/j.ultsonch.2021.105521 Text en © 2021 The Author(s) http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Original Research Article Ruíz-Baltazar, Álvaro de Jesús Sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles and sonocatalytic degradation of methyl orange |
title | Sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles and sonocatalytic degradation of methyl orange |
title_full | Sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles and sonocatalytic degradation of methyl orange |
title_fullStr | Sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles and sonocatalytic degradation of methyl orange |
title_full_unstemmed | Sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles and sonocatalytic degradation of methyl orange |
title_short | Sonochemical activation-assisted biosynthesis of Au/Fe(3)O(4) nanoparticles and sonocatalytic degradation of methyl orange |
title_sort | sonochemical activation-assisted biosynthesis of au/fe(3)o(4) nanoparticles and sonocatalytic degradation of methyl orange |
topic | Original Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8027903/ https://www.ncbi.nlm.nih.gov/pubmed/33774587 http://dx.doi.org/10.1016/j.ultsonch.2021.105521 |
work_keys_str_mv | AT ruizbaltazaralvarodejesus sonochemicalactivationassistedbiosynthesisofaufe3o4nanoparticlesandsonocatalyticdegradationofmethylorange |