Application of a new bifunctionalized chitosan derivative with zwitterionic characteristics for the adsorption of Cu2+, Co2+, Ni2+, and oxyanions of Cr6+ from aqueous solutions: Kinetic and equilibrium aspects
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- 作者：Francine Tatiane Rezende de Almeidaa ; Bruno Christiano Silva Ferreirac ; d ; Ana Luí ; sa da Silva Lage Moreiraa ; Rossimiriam Pereira de Freitasc ; Laurent Fré ; dé ; ric Gila ; laurent@iceb.ufop.br" class="auth_mail" title="E-mail the corresponding author ; Leandro Viní ; cius Alves Gurgelb ; legurgel@iceb.ufop.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Bifunctionalized chitosan ; Adsorption ; Copper ; Cobalt ; Nickel ; Chromium ; Desorption
- 刊名：Journal of Colloid and Interface Science
- 出版年：2016
- 出版时间：15 March 2016
- 年：2016
- 卷：466
- 期：Complete
- 页码：297-309
- 全文大小：974 K
文摘
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A new bifunctionalized chitosan (C2) with zwitterionic characteristics was prepared.
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Trimethylation of amine and esterification of hydroxyls with EDTAD was performed.
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C2 was used for the adsorption of Cu2+, Co2+, Ni2+, and Cr6+ in aqueous solutions.
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Qmax of C2 for Cu2+, Co2+, Ni2+, and Cr6+ were 0.698, 1.125, 0.725, and 1.91 mmol/g.
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Desorption (0.1 mol/L HNO3) and reusability of the C2 adsorbent was also evaluated.