Preparation and characteristics of novel dialdehyde aminothiazole starch and its adsorption properties for Cu (II) ions from aqueous solution

Novel Schiff base type starch dialdehyde aminothiazole (DASAT) was synthesized by the reaction of aminothiazole and dialdehyde starch (DAS) from periodate oxidized corn starch. The DASAT was characterized by element analysis, FT-IR spectra and SEM. DASATs with different DS (0.29, 0.46 and 0.78) of a...

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Bibliographic Details
Published in:Carbohydrate polymers 2008-05, Vol.72 (2), p.326-333
Main Authors: Yin, Qiang-Feng, Ju, Ben-Zhi, Zhang, Shu-Fen, Wang, Xin-Bo, Yang, Jin-Zong
Format: Article
Language:English
Subjects:
Adsorption
aldehydes
Applied sciences
biopolymers
chelating agents
chelation
copper
corn starch
Cu (II)
Dialdehyde starch
Dialdehyde starch aminothiazole
equations
Exact sciences and technology
heavy metals
metal ions
Natural polymers
new methods
Physicochemistry of polymers
pollution control
sorption isotherms
Starch and polysaccharides
temperature
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Summary:Novel Schiff base type starch dialdehyde aminothiazole (DASAT) was synthesized by the reaction of aminothiazole and dialdehyde starch (DAS) from periodate oxidized corn starch. The DASAT was characterized by element analysis, FT-IR spectra and SEM. DASATs with different DS (0.29, 0.46 and 0.78) of aminothiazole were prepared and their adsorption properties for Cu (II) ions from aqueous solution were investigated. Batch adsorption experiments were carried out as a function of adsorption time, pH, initial Cu (II) ions concentration and temperature. The adsorption follows the Langmuir isotherm and the adsorption capacity increases with the increasing DS of the DASAT. Moreover, the adsorption process is endothermic, and higher temperature is favorable to the adsorption of Cu (II) ions.
ISSN:0144-8617
1879-1344
DOI:10.1016/j.carbpol.2007.08.019