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

Autor(es)

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

• Tipo de documento: Artigo Científico
• Fonte: Materials Research Bulletin; v. 84, p. 370-377, DEC 2016.
• Citações Web of Science: 2

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 {[}Fe-III(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 (E-theta')= 0.94 +/- 0.01 V (v=20 mV s(-1); KCl 1.0 M)) attributed to the redox process {[}Fe-II(CN)(6)]/{[}Fe-III(CN)(6)] in the presence of Zn2+. The dependence of particle size on the detection of sulfite was verified. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 12/05438-1 - Desenvolvimento de novos silsesquioxanos nanoestruturados híbridos organofuncionalizados: preparação, caracterização e suas aplicações como sensores de compostos e íons de interesse ambiental e biológico
• Beneficiário: Devaney Ribeiro Do Carmo
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/11306-0 - Quantificação eletroquímica de analitos de interesse ambiental e biológico, empregando novos materiais preparados a partir de silsesquioxanos funcionalizados.
• Beneficiário: Daniela Silvestrini Fernandes
• Modalidade de apoio: Bolsas no Brasil - Doutorado