Abstract
The paper presents the results of the study of the adsorption of vitamin B6 on two samples of autochthonous activated carbon: AC-C and CAN-8. The adsorption kinetics data, determined at three values of initial concentration, show that the immobilization rate of vitamin B6 increases with increasing contact time between the two phases and is a function of the initial adsorbate concentration. The adsorption isotherms of vitamin B6 were processed using the equations of Langmuir and Freundlich adsorbtion, model. It was determined that the immobilization of vitamin B6 on the studied adsorbants is better described by the Langmuir model. The maximum adsorption values recorded for activated carbons AC-C and CAN-8 are in concordance with the structural parameters of the investigated carbons. The realized research shows that emergent contaminants, such as vitamin B6, can be effectively immobilized and removed from aqueous solutions using autochthones activated carbons AC-C and CAN-8 as adsorbents obtained from local raw material.
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