Voltammetric Properties of Nickel Hexacyanoferrate (III) Obtained on the Titanium (IV) Silsesquioxane Occluded into the H-FAU Zeolite for Detection of Sulfite

Página do item simplificado
dc.contributor.authorDo Carmo, Devaney Ribeiro [UNESP]
dc.contributor.authorMaraldi, Vitor Alexandre [UNESP]
dc.contributor.authorCumba, Loanda Raquel [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:20:36Z
dc.date.available2018-12-11T17:20:36Z
dc.date.issued2018-05-31
dc.description.abstractA composite prepared from titanium (IV) silsesquioxane and phosphoric acid (TTiP) was prepared and occluded into the H-FAU zeolite (ZTTiP). The material was chemically modified with nickel and subsequently by potassium hexacyanoferrate (III) (ZTTiPNiH). It was preliminarily characterized by infrared spectroscopy (IR), energy dispersive X-ray spectroscopy (EDS) and cyclic voltammetry (CV). The voltammetric behavior of ZTTipNiH was obtained employing a modified graphite paste electrode (GPE) showing one well-defined redox couple with a formal potential of E(Formula presented.) 0.51V (vs Ag/AgCl(sat)), KCl (3M) (20% w/w; v = 20 mV s− 1; KCl; 1.00 mol L− 1) corresponding to the NiIIFeII(CN)6/NiIIFeIII(CN)6 redox process. After rigorous voltammetric studies, the GPE modified with ZTTiPNiH was applied for facile and rapid detection of sulfite. From the analytical curve, a linear response was obtained in a concentration range of 0.05 to 0.80 mmol L− 1 and a detection limit (3σ) of 0.05 mmol L− 1 with a relative standard deviation of 4.21% (n = 3) and an amperometric sensitivity of 14.42 mA L mol− 1 for sulfite.en
dc.description.affiliationDepartamento de Física e Química Faculdade de Engenharia de Ilha Solteira UNESP - Universidade Estadual Paulista, Av. Brasil Centro, 56
dc.description.affiliationUnespDepartamento de Física e Química Faculdade de Engenharia de Ilha Solteira UNESP - Universidade Estadual Paulista, Av. Brasil Centro, 56
dc.format.extent1-10
dc.identifierhttp://dx.doi.org/10.1007/s12633-018-9918-9
dc.identifier.citationSilicon, p. 1-10.
dc.identifier.doi10.1007/s12633-018-9918-9
dc.identifier.file2-s2.0-85047952173.pdf
dc.identifier.issn1876-9918
dc.identifier.issn1876-990X
dc.identifier.scopus2-s2.0-85047952173
dc.identifier.urihttp://hdl.handle.net/11449/176387
dc.language.isoeng
dc.relation.ispartofSilicon
dc.relation.ispartofsjr0,355
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectNickel hexacyanoferrate (III)
dc.subjectSilsesquioxanes
dc.subjectSulfite
dc.subjectTitanium (IV) silsesquioxane
dc.subjectVoltammetry
dc.subjectZeolite
dc.titleVoltammetric Properties of Nickel Hexacyanoferrate (III) Obtained on the Titanium (IV) Silsesquioxane Occluded into the H-FAU Zeolite for Detection of Sulfiteen
dc.typeArtigo

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
2-s2.0-85047952173.pdf
Tamanho:
1.7 MB
Formato:
Adobe Portable Document Format
Descrição:
Baixar

Coleções

Artigos - Física e Química - FEIS