INFLUENCE OF THE SYNTHESIS PARAMETERS ON SOME TEXTURAL PROPERTIES OF ROMANIAN ACID ACTIVATED BENTONITE

  • URSU ALINA VIOLETA
    UNIVERSITY „VASILE ALECSANDRI” OF BACĂU, 157 CALEA MARASESTI, RO-600115, BACĂU, ROMANIA
  • JINESCU GHEORGHITA
    UNIVERSITY “POLITEHNICA” OF BUCAREST, 313 SPLAIUL INDEPENDENTEI, RO-060042, BUCHAREST, ROMANIA
  • NISTOR ILEANA DENISA
    UNIVERSITY „VASILE ALECSANDRI” OF BACĂU, 157 CALEA MARASESTI, RO-600115, BACĂU, ROMANIA
  • GEORGESCU ANA MARIA
    UNIVERSITY „VASILE ALECSANDRI” OF BACĂU, 157 CALEA MARASESTI, RO-600115, BACĂU, ROMANIA
  • MUNTIANU (GHIMICIU) GABRIELA
    UNIVERSITY „VASILE ALECSANDRI” OF BACĂU, 157 CALEA MARASESTI, RO-600115, BACĂU, ROMANIA
  • SILION MIHAELA
    INSTIUTUTE OF MACROMOLECULAR CHEMISTRY “PETRU PONI

Abstract

This paper presents the influence of synthesis parameters (concentration of acid solution and the solid: liquid ratio) on textural characteristics of bentonite activated clays: nitrogen adsorption/desorption isotherms, surface and pore size distribution. Acid activated clays present higher specific surface area than the natural bentonite used as feed stock and a better adsorption capacity.

Cuvinte cheie

acid activated bentonite specific surface area pore size distribution