Tipo
Artigos em Revista
Tipo de Documento
Artigo Completo
Título
Synthesis and properties of Polythionine/Co-doped titanate nanotubes hybrid materials
Participantes na publicação
Ferreira, Virginia C (Author)
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Dep. Química e Bioquímica
Dep. Química e Bioquímica
CQB
O.C. Monteiro (Author)
CQB
Resumo
tThe synthesis of polythionine (PTN)/cobalt-doped titanate nanotubes (CoTNTs) hybrid conducting filmswith distinct layouts, using electropolimerization, is reported. The CoTNTs nanocrystalline elongated particles were obtained by a hydrothermal treatment, using an amorphous Co-doped material as precursor. The adsorption ability of the prepared CoTNTs to remove organic dyes from aqueous media was investigated, using thionine (Th). The total amount of Th removed by the nanocrystalline CoTNTs powder was 340.06 mg g−1. During this process, and due to the CoTNTs structural properties, the combination of dye adsorption and intercalation was considered. After dye sensitization, the Th/CoTNTs were char-acterized and used for Th electropolymerization studies, in order to produce hybrid polythionine (PTN) electroactive films. The electroactivity of the Th molecules after immobilization in the CoTNTs surface is maintained. After electropolymerization, stable and electroactive nanostructured CoTNTs–PTN modified electrodes were obtained. The influence of the experimental parameters in the final electrical and morphological properties of the obtained hybrid films was studied, mainly the presence of the monomer in solution, adsorbed or intercalated in CoTNTs.
Data de Submissão/Pedido
2012-10-07
Data de Aceitação
2013-07-10
Data de Publicação
2013-07-22
Instituição
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Suporte
ELECTROCHIMICA ACTA
Identificadores da Publicação
ISSN - 0013-4686
Página Inicial
817
Página Final
824
Identificadores do Documento
URL -
http://dx.doi.org/10.1016/j.electacta.2013.07.073
DOI -
https://doi.org/10.1016/j.electacta.2013.07.073
Identificadores de Qualidade
SCIMAGO Q1 (2016) - 1.355 - Electrochemistry
SCOPUS Q1 (2012) - 1.651 - Electrochemistry
Web Of Science Q1 (2017) - 5.116 - ELECTROCHEMISTRY - SCIE
Keywords
Cobalt doped titanate nanotubes
Thionine
Electro-polymerization
Conducting hybrid films
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