Solvent mixture effect in the zinc hexacyanoferrate (III) nanoparticles: Synthesis, characterization and voltammetric application

Do Carmo, Devaney Ribeiro [UNESP]; Fernandes, Daniela Silvestrini [UNESP]; Cumba, Loanda Raquel [UNESP]; de Souza Magossi, Mariana [UNESP]; dos Santos, Vanessa Solfa [UNESP]

Solvent mixture effect in the zinc hexacyanoferrate (III) nanoparticles: Synthesis, characterization and voltammetric application

Arquivos

2-s2.0-84983491204.pdf (2.28 MB)

Data

2016-12-01

Autores

Do Carmo, Devaney Ribeiro

Fernandes, Daniela Silvestrini

Cumba, Loanda Raquel

de Souza Magossi, Mariana

dos Santos, Vanessa Solfa

Tipo

Artigo

Direito de acesso

Acesso aberto

Resumo

This work describes the preparation and characterization of size-controlled zinc hexacyanoferrate (III) nanoparticles (ZnH). They were prepared using different proportions of water/formamide in the complexation reaction of Zn2+ with [FeIII(CN)6]3−. The materials were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), Ultraviolet-Visible Spectroscopy (UV–vis), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX) and Cyclic Voltammetry (CV). The cyclic voltammograms of the modified graphite paste electrode with ZnH-1, ZnH-2, ZnH-3 and ZnH-4 showed a well-defined redox couple with formal potential (Eθ′) = 0.94 ± 0.01 V (ν=20 mV s−1; KCl 1.0 M)) attributed to the redox process [FeII(CN)6]/[FeIII(CN)6] in the presence of Zn2+. The dependence of particle size on the detection of sulfite was verified.