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Growth of carbon structures on chrysotile surface for organic contaminants removal from wastewater.
Lemos, Bruno R S; Soares, Érico A R; Teixeira, Ana Paula C; Ardisson, José D; Fernandez-Outon, Luis E; Amorim, Camila C; Lago, Rochel M; Moura, Flávia C C.
Afiliación
  • Lemos BRS; Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil.
  • Soares ÉAR; Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil.
  • Teixeira APC; Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil.
  • Ardisson JD; Laboratório de Física Aplicada, Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, MG, 31270-901, Brazil.
  • Fernandez-Outon LE; Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
  • Amorim CC; Departamento de Engenharia Sanitária e Ambiental, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
  • Lago RM; Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil.
  • Moura FCC; Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil. Electronic address: flaviamoura@ufmg.br.
Chemosphere ; 159: 602-609, 2016 Sep.
Article en En | MEDLINE | ID: mdl-27343867
Amphiphilic magnetic composites were produced based on chrysotile mineral and carbon structures by chemical vapor deposition at different temperatures (600-900 °C) and cobalt as catalyst. The materials were characterized by elemental analysis, X-ray diffraction, vibrating sample magnetometry, adsorption and desorption of N2, Raman spectroscopy, scanning electronic microscopy, and thermal analysis showed an effective growth of carbon structures in all temperatures. It was observed that at 800 and 900 °C, a large amount of carbon structures are formed with fewer defects than at 600 and 700 °C, what contributes to their stability. In addition, the materials present magnetic phases that are important for their application as catalysts and adsorbents. The materials have shown to be very active to remove the oil dispersed in a real sample of emulsified wastewater from biodiesel production and to remove methylene blue by adsorption and oxidation via heterogeneous Fenton mechanism.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Carbono / Eliminación de Residuos Líquidos / Asbestos Serpentinas / Aguas Residuales Idioma: En Revista: Chemosphere Año: 2016 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Carbono / Eliminación de Residuos Líquidos / Asbestos Serpentinas / Aguas Residuales Idioma: En Revista: Chemosphere Año: 2016 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido