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Synthesis and characterization of multi-amino-functionalized cellulose for arsenic adsorption.
MedLine Citation:
PMID:  23218309     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A multi-amino adsorbent for arsenic adsorption was reported in this paper. Glycidyl methacrylate (GMA) was first grafted onto the surface of cotton cellulose using ceric ammonium nitrate (CAN) as the initiator, and then the introduced epoxy groups reacted with tetraethylenepentamine (TEPA) to obtain a multi-amino adsorbent. The adsorbent was characterized by FTIR, elemental analysis, (13)C NMR and SEM. Then, the adsorption of arsenic for this adsorbent was investigated. The results showed that the GMA and TEPA were successfully grafted onto the surface of cellulose, and the modification improved the arsenic adsorption performances. Kinetic study suggested that the chemisorptions were the rate-limiting step. Among the three adsorption isotherm models used, Langmuir model fitted the experimental data best. The adsorption capacities of arsenic were less affected by coexisting ions. The adsorbent could be effectively regenerated for four cycles with 0.1mol/L NaOH solution.
Authors:
Xiaolin Yu; Shengrui Tong; Maofa Ge; Lingyan Wu; Junchao Zuo; Changyan Cao; Weiguo Song
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Publication Detail:
Type:  Journal Article     Date:  2012-10-02
Journal Detail:
Title:  Carbohydrate polymers     Volume:  92     ISSN:  1879-1344     ISO Abbreviation:  Carbohydr Polym     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2012-12-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8307156     Medline TA:  Carbohydr Polym     Country:  England    
Other Details:
Languages:  eng     Pagination:  380-7     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
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