Revista de Ingeniería

revinge | eISSN 2011-0049 | ISSN 0121-4993

Superficial Characterization in Gas and Liquid Phase of Activated Carbons

No. 27 (2008-05-01)
  • Liliana Giraldo
    Ph.D. Profesora Asistente, Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia. Bogotá D.C., Colombia.
  • Vanessa García
    Departamento de Química, Facultad de Ciencias, Grupo de Investigación en Sólidos Porosos y Calorimetría, Universidad de los Andes, Bogotá D.C., Colombia.
  • Juan Carlos Moreno
    Ph.D. Director del Departamento de Química e investigador del Grupo de Investigación en Sólidos Porosos y Calorimetría, Facultad de Ciencias, Universidad de los Andes. Bogotá D.C., Colombia. jumoreno@uniandes.edu.co
https://doi.org/10.16924/revinge.27.1

Abstract

The superficial area of an activated carbon obtained from coffee husk and coconut shell was determined, by means of isotherms of adsorption of N2 to 77K and the results they area compared with the method of index blue of methylene, finding an good correlation between the two areas determined by this method. This research shows that both methods allow making a complementary analysis of a porous surface.

Keywords: Activated carbon, adsorption, blue methylene index, decolouration