摘要
用丙酮酸对壳聚糖进行改性,得到水溶性的丙酮酸改性壳聚糖,研究了丙酮酸改性壳聚糖、低聚壳聚糖及壳聚糖对镉离子的吸附性能,结果表明丙酮酸改性壳聚糖对镉离子吸附能力最强,吸附容量可达到87.74mg/g,吸附速率也最快,在镉离子溶液中搅拌反应20min,其吸附率就可达到81.22%,本论文的研究对开发新型重金属离子吸附剂具有一定的意义。
Chitosan （CTS） is modified by pyruvic acid for synthesis of water soluble pyruvic acid-modified chitosan （PCTS）. The adsorption properties of PCTS, chitosan oligosaccharide （COS） and CTS for Cd ion were studied in this paper. The results showed that PCTS has higher adsorption capacity than COS and CTS, with its adsorption volume being of 87.74 mg/g. And PTTS also shows the highest adsorption rate, being of 81.22% in 1 hour. This research has the important means for development novel absorbents of heavy metal ion.
出处
《现代食品科技》
EI
CAS
2010年第7期677-679,716,共4页
Modern Food Science and Technology
基金
2008年目标导向项目(SKLF-MB-200805)
关键词
壳聚糖
丙酮酸
镉
吸附
chitosan
pyruvic acid
Cd
adsorption
