ADSORPTION KINETICS OF FUCHSIN ACID ONTO AL-BENTONITE

  • Nguyễn Lê Mỹ Linh
  • Võ Văn Tân
Keywords: Al pillared bentonite, fuchsin acid, isotherms, adsorption kinetics

Abstract

In the present work, the Al-bentonite was prepared by the modification of Wyoming bentonite with cation
aluminium by ultrasound-assisted cation exchange. X-ray diffraction (XRD), infrared spectroscopy (FTIR), and nitrogen adsorption/desorption isotherms were utilized to characterize the modified bentonite. The
Al-bentonite was employed for the removal of fuchsin acid from aqueous solution. Fuchsin acid adsorption
followed the pseudo-second-order kinetic model. The determined activation energy of this fuchsin acid
adsorption was 5.17 kJ/mol.

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Published
2024-07-10