Remoção de azul de metileno de solução aquosa usando zeólitas sintetizadas com amostras de cinzas de carvão diferentes

Química Nova

Denise Alves Fungaro¹  Mariza Bruno¹ 

[1] ,Instituto de Pesquisas Energéticas e Nucleares Centro de Química e Meio Ambiente São Paulo SP ,Brasil

关键词: zeolite;    methylene blue;    dye adsorption;   

DOI  :  10.1590/S0100-40422009000400024

来源: SciELO

【 摘 要 】

Batch sorption experiments were carried out to remove methylene blue from its aqueous solutions using zeolites synthesized from fly ashes as an adsorbent. The adsorbents were characterized by XFR, XRD and SEM. Nearly 90 min of contact time are found to be sufficient for the adsorption of dye to reach equilibrium. Equilibrium data have been analyzed using Langmuir and Freundlich isotherms and the results were found to be well represented by the Freundlich isotherm equation. Adsorption data were fitted to both Lagergren first-order and pseudo-second-order kinetic models and the data were found to follow pseudo-second-order kinetics.

【 授权许可】

CC BY-NC   
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