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Schiff base Mn(iii) and Co(ii) complexes coated on Co nanoparticles: an efficient and recyclable magnetic nanocatalyst for H(2)O(2) oxidation of sulfides to sulfoxides

In this paper, an effective and selective heterogeneous catalyst was produced by immobilization of manganese and cobalt Schiff base-complexes on Co magnetite nanoparticles (MNP). The catalysts Co@SiO(2)[(EtO)(3)Si–L(3)]/M (M = Mn(iii) and Co(ii)) were synthesized using Co@SiO(2) core–shell nanoparti...

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Autores principales: Saremi, Shokoufeh Ghahri, Keypour, Hassan, Noroozi, Mohammad, Veisi, Hojat
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077757/
https://www.ncbi.nlm.nih.gov/pubmed/35542945
http://dx.doi.org/10.1039/c7ra11225d
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author Saremi, Shokoufeh Ghahri
Keypour, Hassan
Noroozi, Mohammad
Veisi, Hojat
author_facet Saremi, Shokoufeh Ghahri
Keypour, Hassan
Noroozi, Mohammad
Veisi, Hojat
author_sort Saremi, Shokoufeh Ghahri
collection PubMed
description In this paper, an effective and selective heterogeneous catalyst was produced by immobilization of manganese and cobalt Schiff base-complexes on Co magnetite nanoparticles (MNP). The catalysts Co@SiO(2)[(EtO)(3)Si–L(3)]/M (M = Mn(iii) and Co(ii)) were synthesized using Co@SiO(2) core–shell nanoparticles and amino-functionalized Co@SiO(2). The Schiff base ligand Co@SiO(2)[(EtO)(3)Si–L(3)] was synthesized by reacting Co@SiO(2) core–shell nanoparticles with 2-hydroxy 1-naphthaldehyde for the synthesis of Co@SiO(2)[(EtO)(3)Si–L(3)]/M. The catalysts were characterized by several techniques, such as FT-IR, TEM, XRD, TGA and VSM. The catalytic activities of the prepared catalysts were studied by oxidation of sulfides to the sulfoxides under different conditions. These catalysts can be easily recovered and reused in at least seven sequential cycles without considerable leaching and loss of reactivity.
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spelling pubmed-90777572022-05-09 Schiff base Mn(iii) and Co(ii) complexes coated on Co nanoparticles: an efficient and recyclable magnetic nanocatalyst for H(2)O(2) oxidation of sulfides to sulfoxides Saremi, Shokoufeh Ghahri Keypour, Hassan Noroozi, Mohammad Veisi, Hojat RSC Adv Chemistry In this paper, an effective and selective heterogeneous catalyst was produced by immobilization of manganese and cobalt Schiff base-complexes on Co magnetite nanoparticles (MNP). The catalysts Co@SiO(2)[(EtO)(3)Si–L(3)]/M (M = Mn(iii) and Co(ii)) were synthesized using Co@SiO(2) core–shell nanoparticles and amino-functionalized Co@SiO(2). The Schiff base ligand Co@SiO(2)[(EtO)(3)Si–L(3)] was synthesized by reacting Co@SiO(2) core–shell nanoparticles with 2-hydroxy 1-naphthaldehyde for the synthesis of Co@SiO(2)[(EtO)(3)Si–L(3)]/M. The catalysts were characterized by several techniques, such as FT-IR, TEM, XRD, TGA and VSM. The catalytic activities of the prepared catalysts were studied by oxidation of sulfides to the sulfoxides under different conditions. These catalysts can be easily recovered and reused in at least seven sequential cycles without considerable leaching and loss of reactivity. The Royal Society of Chemistry 2018-01-22 /pmc/articles/PMC9077757/ /pubmed/35542945 http://dx.doi.org/10.1039/c7ra11225d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Saremi, Shokoufeh Ghahri
Keypour, Hassan
Noroozi, Mohammad
Veisi, Hojat
Schiff base Mn(iii) and Co(ii) complexes coated on Co nanoparticles: an efficient and recyclable magnetic nanocatalyst for H(2)O(2) oxidation of sulfides to sulfoxides
title Schiff base Mn(iii) and Co(ii) complexes coated on Co nanoparticles: an efficient and recyclable magnetic nanocatalyst for H(2)O(2) oxidation of sulfides to sulfoxides
title_full Schiff base Mn(iii) and Co(ii) complexes coated on Co nanoparticles: an efficient and recyclable magnetic nanocatalyst for H(2)O(2) oxidation of sulfides to sulfoxides
title_fullStr Schiff base Mn(iii) and Co(ii) complexes coated on Co nanoparticles: an efficient and recyclable magnetic nanocatalyst for H(2)O(2) oxidation of sulfides to sulfoxides
title_full_unstemmed Schiff base Mn(iii) and Co(ii) complexes coated on Co nanoparticles: an efficient and recyclable magnetic nanocatalyst for H(2)O(2) oxidation of sulfides to sulfoxides
title_short Schiff base Mn(iii) and Co(ii) complexes coated on Co nanoparticles: an efficient and recyclable magnetic nanocatalyst for H(2)O(2) oxidation of sulfides to sulfoxides
title_sort schiff base mn(iii) and co(ii) complexes coated on co nanoparticles: an efficient and recyclable magnetic nanocatalyst for h(2)o(2) oxidation of sulfides to sulfoxides
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077757/
https://www.ncbi.nlm.nih.gov/pubmed/35542945
http://dx.doi.org/10.1039/c7ra11225d
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