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Synthesis, characterization and application of new adsorbent composites based on sol-gel/chitosan for the removal of soluble substance in water.
de Mello, Jonatan Rafael; Machado, Thaís Strieder; Crestani, Larissa; Alessandretti, Ingridy; Marchezi, Giovana; Melara, Flávia; Mignoni, Marcelo Luis; Piccin, Jeferson Steffanello.
Afiliação
  • de Mello JR; Postgraduate in Food Science and Technology, Faculty of Agronomy and Veterinary Medicine, University of Passo Fundo, BR 285, km 171, Passo Fundo, RS, Brazil.
  • Machado TS; Postgraduate in Civil and Environmental Engineering, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, km 171, Passo Fundo, RS, Brazil.
  • Crestani L; Chemical Engineering Course, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, km 171, Passo Fundo, RS, Brazil.
  • Alessandretti I; Chemical Engineering Course, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, km 171, Passo Fundo, RS, Brazil.
  • Marchezi G; Chemical Engineering Course, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, km 171, Passo Fundo, RS, Brazil.
  • Melara F; Postgraduate in Civil and Environmental Engineering, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, km 171, Passo Fundo, RS, Brazil.
  • Mignoni ML; Department of Food and Chemical Engineering, University of Regional Integrated of Alto Uruguay and the Missions, Avenue Sete de Setembro, 1621, Erechim, RS, Brazil.
  • Piccin JS; Postgraduate in Food Science and Technology, Faculty of Agronomy and Veterinary Medicine, University of Passo Fundo, BR 285, km 171, Passo Fundo, RS, Brazil.
Heliyon ; 8(5): e09444, 2022 May.
Article em En | MEDLINE | ID: mdl-35620618
In this work, new adsorbent composites from the silica precursor tetraethyl orthosilicate (TEOS) and chitosan have been successfully synthesized, denominated 20%Chi, 30%Chi and 40%Chi. The composites presented enhanced chemical and physical characteristics, with emphasis on the high surface areas between 374.94 m2/g to 886.31 m2/g. The application of the composites in the model system (TY - Tartrazine yellow dye), presented adsorption capacities dependent on the amount of chitosan in the composite (40%Chi > 30%Chi > 20%Chi). However, from the experimental data of the constituent materials, 30%Chi provided the greatest increase in the adsorption capacity in the monolayer, with values of 36%. This demonstrates that the amount of chitosan in the compound alters the arrangement of adsorption sites. The 30%Chi composite presented life cycle superior to 10 reuse cycles.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Heliyon Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
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XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Heliyon Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido