Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticles
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532015001102214 |
Resumo: | Nucleation and growth mechanism of iron oxide nanoparticles on zeolite template and their stability dependence are reported. Hyperfine field resulting from the variation of particle size indicates the effect of zeolite on particles growth; particle size decreases at lower concentration of zeolite. At higher concentration, a fraction of nano Fe3O4 experiences hyperfine field (45 and 49 T) similar to bulk particles. Effect of incubation and digestion time on the particles growth and the binding effect with zeolite are discussed. Annealing treatments show that the binding of nanoparticles with zeolite stabilizes the nanoparticles with regard to agglomeration and structural transformation. Thermogravimetry-differential thermal analysis (TG-DTA) shows that increase in dehydration temperature from 335.1 to 351.7 K results in zeolite content increasing from 0 to 1000 mg. Weight loss of the particles prepared in incubation time of 0.5 min is 9.46% and reaches 13.9% in 240 min. The weight loss remains practically constant at ca. 9% irrespective of the digestion method. |
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Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticlesmagnetitezeoliteconfined growththermal stabilityNucleation and growth mechanism of iron oxide nanoparticles on zeolite template and their stability dependence are reported. Hyperfine field resulting from the variation of particle size indicates the effect of zeolite on particles growth; particle size decreases at lower concentration of zeolite. At higher concentration, a fraction of nano Fe3O4 experiences hyperfine field (45 and 49 T) similar to bulk particles. Effect of incubation and digestion time on the particles growth and the binding effect with zeolite are discussed. Annealing treatments show that the binding of nanoparticles with zeolite stabilizes the nanoparticles with regard to agglomeration and structural transformation. Thermogravimetry-differential thermal analysis (TG-DTA) shows that increase in dehydration temperature from 335.1 to 351.7 K results in zeolite content increasing from 0 to 1000 mg. Weight loss of the particles prepared in incubation time of 0.5 min is 9.46% and reaches 13.9% in 240 min. The weight loss remains practically constant at ca. 9% irrespective of the digestion method.Sociedade Brasileira de Química2015-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532015001102214Journal of the Brazilian Chemical Society v.26 n.11 2015reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20150207info:eu-repo/semantics/openAccessSingh,Loushambam H.Pati,Sudhanshu S.Sales,Maria J. A.Guimarães,Edi M.Oliveira,Aderbal C.Garg,Vijayendra K.eng2015-11-24T00:00:00Zoai:scielo:S0103-50532015001102214Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2015-11-24T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticles |
title |
Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticles |
spellingShingle |
Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticles Singh,Loushambam H. magnetite zeolite confined growth thermal stability |
title_short |
Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticles |
title_full |
Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticles |
title_fullStr |
Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticles |
title_full_unstemmed |
Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticles |
title_sort |
Facile Method to Tune the Particle Size and Thermal Stability of Magnetite Nanoparticles |
author |
Singh,Loushambam H. |
author_facet |
Singh,Loushambam H. Pati,Sudhanshu S. Sales,Maria J. A. Guimarães,Edi M. Oliveira,Aderbal C. Garg,Vijayendra K. |
author_role |
author |
author2 |
Pati,Sudhanshu S. Sales,Maria J. A. Guimarães,Edi M. Oliveira,Aderbal C. Garg,Vijayendra K. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Singh,Loushambam H. Pati,Sudhanshu S. Sales,Maria J. A. Guimarães,Edi M. Oliveira,Aderbal C. Garg,Vijayendra K. |
dc.subject.por.fl_str_mv |
magnetite zeolite confined growth thermal stability |
topic |
magnetite zeolite confined growth thermal stability |
description |
Nucleation and growth mechanism of iron oxide nanoparticles on zeolite template and their stability dependence are reported. Hyperfine field resulting from the variation of particle size indicates the effect of zeolite on particles growth; particle size decreases at lower concentration of zeolite. At higher concentration, a fraction of nano Fe3O4 experiences hyperfine field (45 and 49 T) similar to bulk particles. Effect of incubation and digestion time on the particles growth and the binding effect with zeolite are discussed. Annealing treatments show that the binding of nanoparticles with zeolite stabilizes the nanoparticles with regard to agglomeration and structural transformation. Thermogravimetry-differential thermal analysis (TG-DTA) shows that increase in dehydration temperature from 335.1 to 351.7 K results in zeolite content increasing from 0 to 1000 mg. Weight loss of the particles prepared in incubation time of 0.5 min is 9.46% and reaches 13.9% in 240 min. The weight loss remains practically constant at ca. 9% irrespective of the digestion method. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-11-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532015001102214 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532015001102214 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20150207 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.26 n.11 2015 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318177823227904 |