Document Detail


Sodium alginate/Na(+)-rectorite composite microspheres: Preparation, characterization, and dye adsorption.
MedLine Citation:
PMID:  22840012     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Sodium alginate/Na(+)-rectorite (SA/Na(+)REC) intercalated nano-composite microspheres were prepared in an inverse suspension system. The effect of the preparation conditions of SA/Na(+)REC composite microspheres on adsorption capacity for Basic Blue 9 was investigated. The structure and morphology were analyzed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscope (SEM). The results showed that the optimal condition was that the amount of Na(+)-rectorite was 2wt%, the amount of cross-linker was 0.384% and the amount of the initiator was 8%. SEM showed that it is porous products with spherical particulate surface. XRD showed that intercalation is formed between Na(+)-rectorite and sodium alginate. The adsorption capacity of SA/Na(+)REC was investigated in comparison with Na(+)-rectorite and sodium alginate using different cationic dyes. The SA/Na(+)REC composite microspheres showed the highest adsorption capacity. The reason lies in the existence of intercalated sodium alginate. It could enlarge the pore structure of microspheres, facilitating the penetration of macromolecular dyes.
Authors:
Lianli Yang; Xiaoyan Ma; Naini Guo
Publication Detail:
Type:  Journal Article     Date:  2012-06-18
Journal Detail:
Title:  Carbohydrate polymers     Volume:  90     ISSN:  1879-1344     ISO Abbreviation:  Carbohydr Polym     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-07-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8307156     Medline TA:  Carbohydr Polym     Country:  England    
Other Details:
Languages:  eng     Pagination:  853-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2012. Published by Elsevier Ltd.
Affiliation:
College of Chemistry and Chemical Engineering, Xianyang Teacher' College, Xianyang, Shaanxi 712000, PR China.
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