摘要
本文用X射线光电子能谱(XPS)研究了交联壳聚糖对钒(Ⅴ)的吸附机理,在对比交联壳聚糖(CCTS)吸附钒(Ⅴ)前后的XPS谱中,可观察到CCTS的N1s和钒(Ⅴ)的V2p3/2峰都有较大的化学位移,说明钒(Ⅴ)与交联壳聚糖的—NH2基团发生了配位反应,交联壳聚糖对钒(Ⅴ)的吸附主要是化学吸附。
X-ray photoelectron spectroscopy (XPS) has been used to investigate the adsorption mechanism of vanadium (Ⅴ) on the crosslinked chitosan (CCTS). There are significant chemical shifts of both N1s peak of CCTS and V2p_(3/2) peak of vanadium in the XPS of the sample after adsorption comparing to that of the unadsorbed samples. The result indicates that vanadium (Ⅴ) ions complex with the —NH_2 groups on CCTS and the adsorption of vanadium (Ⅴ) ions on CCTS is a chemical adsorption process.
出处
《分析科学学报》
CAS
CSCD
北大核心
2004年第5期534-536,共3页
Journal of Analytical Science
基金
国家自然科学基金(No.20277028)
湖北省自然科学基金(No.2002AB059)
