Cloreto de n-(2-hidroxil) propil-3-trimetil amônio quitosana como adsorvente de corantes reativos em solução aquosa

Química Nova

Valfredo T. Fávere¹  Humberto G. Riella²  Sirlei Da Rosa² 

[1] ,Universidade Federal de Santa Catarina Departamento de Química Florianópolis SC ,Brasil

关键词: reactive dye;    quaternary chitosan;    adsorption;   

DOI  :  10.1590/S0100-40422010000700010

来源: SciELO

【 摘 要 】

The quaternary chitosan was synthesized by reaction of chitosan with glycidyl trimethylammonium chloride. it was characterized by infrared spectra and conductometric titration. Adsorption of reactive blue 4 (RB4) and reactive red 120 (RR120) by quaternary chitosan was studied from aqueous medium. Two kinetic adsorption models were tested: pseudo first-order and pseudo second-order. The experimental data best fitted the pseudo second-order model. The Langmuir isotherm model provided the best fit to the equilibrium data in the concentration range investigated and the maximum adsorption capacity determined was 415 mg (RR120) and 637 mg (RB4) of reactive dye per gram of adsorbent.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License