Publicação: Nanocomposites based on LbL films of polyaniline and sodium montmorillonite clay
Carregando...
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Tipo
Artigo
Direito de acesso
Acesso restrito
Resumo
Layer-by-layer (LbL) films were fabricated with alternating layers of montmorillonite (Na+-MMT) and either polyaniline emeraldine salt (PAni-ES) or polyethyleneimine (PEI). Molecular-level interactions between the film components probed with FTIR and Raman spectroscopies led to distinct arrangements for the clay nanostructures. The electrostatic interaction between charged groups in PAni-ES and Na+-MMT caused aggregation with the polymer chains located around the clay sheets, while for the PEI/Na+-MMT LbL film the interlayer distance was increased owing to intercalation. The LbL films deposited onto ITO substrates were used as electrochemical sensors for detecting heavy metal ions simultaneously using electrochemical measurements by square wave anodic stripping voltammetry (SWAS). (C) 2014 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
Layer-by-layer films, Sodium montmorillonite clay, Polyaniline, Electrochemical sensor, Detection of heavy metal ions
Idioma
Inglês
Como citar
Synthetic Metals. Lausanne: Elsevier Science Sa, v. 197, p. 119-125, 2014.
