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Free-standing cellulose film containing manganese dioxide nanoparticles and its use in discoloration of indigo carmine dye.
Oliveira, Larissa V F; Bennici, Simona; Josien, Ludovic; Limousy, Lionel; Bizeto, Marcos A; Camilo, Fernanda F.
Afiliação
  • Oliveira LVF; Laboratório de Materiais Híbridos, Departamento de Química, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo - Campus Diadema, Brazil.
  • Bennici S; Institut de Science des Matériaux de Mulhouse CNRS UMR 7361, Université de Haute-Alsace, Université de Strasbourg, 3b rue Alfred Werner, 68093 Mulhouse, Cedex, France.
  • Josien L; Institut de Science des Matériaux de Mulhouse CNRS UMR 7361, Université de Haute-Alsace, Université de Strasbourg, 3b rue Alfred Werner, 68093 Mulhouse, Cedex, France.
  • Limousy L; Institut de Science des Matériaux de Mulhouse CNRS UMR 7361, Université de Haute-Alsace, Université de Strasbourg, 3b rue Alfred Werner, 68093 Mulhouse, Cedex, France.
  • Bizeto MA; Laboratório de Materiais Híbridos, Departamento de Química, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo - Campus Diadema, Brazil.
  • Camilo FF; Laboratório de Materiais Híbridos, Departamento de Química, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo - Campus Diadema, Brazil. Electronic address: ffcamilo@unifesp.br.
Carbohydr Polym ; 230: 115621, 2020 Feb 15.
Article em En | MEDLINE | ID: mdl-31887869
In this study, we report the production of a free-standing film of non-modified cellulose impregnated with 12 wt.% of MnO2 nanoparticles with less than 100 nm in size. The method here described can be applied to the immobilization of different types of nanoparticles. The film was prepared by dissolving microcrystalline cellulose in an ionic liquid followed by its regeneration by adding water to the former solution. Then, the wet film was impregnated with the nanoparticles by dipping it in a MnO2 dispersion. Electron microscopy images revealed manganese dioxide nanoparticles distributed not only at the film surface but also in its interior. The cellulose film impregnated with MnO2 nanoparticles was capable of efficiently discolouring an Indigo Carmine dye solution in 25 min upon ambient light. The film was easily removed from the dye solution and repeatedly reused for at least 10 times without losing its discolouring efficiency.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Carbohydr Polym Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
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XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Carbohydr Polym Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido