Open AccessAdsorption Equilibrium and Kinetic Studies of Effect of ortho-Substitution to Benzoic Acid in Aqueous Phase Using Granular Activated Carbon
Author(s) -
Roy George Roy George
Publication year - 2019
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2019.21938
Subject(s) - benzoic acid , chemistry , adsorption , salicylic acid , activated carbon , phthalic acid , aqueous solution , inorganic chemistry , aqueous two phase system , kinetics , phase (matter) , organic chemistry , physics , quantum mechanics , biochemistry
Adsorption equilibrium and kinetics studies of effect of ortho-substituted benzoic acid in aqueous phase using granular activated carbon were investigated. The granular activated carbon (GAC) obtained from bituminous type coal having a surface area of 998 m2/g and loosely bounded and open pores morphology. The adorbates selected for this study was benzoic acid and its ortho-derivatives namely; salicylic acid, phthalic acid and o-toluic acid. The solubility of adsorbate in solvent affected the adsorption behaviour more pronouncly. The order of adsorption for adsorbates was found to be as: benzoic acid > salicylic acid > o-toluic acid > phthalic acid.