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    STUDIA CHEMIA - Issue no. 4%20Tom%20II / 2017  
         
  Article:   MALACHITE GREEN DYE ADSORPTION FROM MODEL AQUEOUS SOLUTIONS USING CORN COB ACTIVATED CARBON (CCAC).

Authors:  SILVIA BURCĂ, CERASELLA INDOLEAN, ANDRADA MĂICĂNEANU.
 
       
         
  Abstract:  

This paper presents a report on kinetics of malachite green (MG) dye removal from model aqueous solutions using a biomaterial formed by corn cob activated carbon (CCAC). The sorbent was characterized using specific surface area and pore size distribution (Brunauer–Emmett–Teller, BET) analysis. The BET analysis confirmed the macro-porosity of the adsorbent. Effects of initial concentration of MG dye and CCAC quantity, particle size and stirring rate on adsorption capacities and efficiency were monitored through pseudo first- and second-order models, intra-particle and film diffusion models to present adsorption rate parameters. The removal efficiency of MG increased with the adsorbent quantity and particle size.

 

Keywords: corn cob biomass, activated carbon, malachite green, aqueous phase, characterization techniques, kinetics.

 
         
     
         
         
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