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论文类型：期刊论文

发表时间：2008-05-05

发表刊物：CARBOHYDRATE POLYMERS

收录刊物：SCIE、EI

卷号：72

期号：2

页面范围：326-333

ISSN号：0144-8617

关键字：dialdehyde starch; dialdehyde starch aminothiazole; Cu (II); adsorption

摘要：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 arninothiazole 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. (c) 2007 Elsevier Ltd. All rights reserved.