交联壳聚糖对钒(Ⅴ)吸附机理的XPS研究  

Study on the Adsorption Mechanism of Vanadium (Ⅴ) on the Crosslinked Chitosan by XPS

作　　者：莫少波 [1] 肖玫 [2] 翁玥 [1] 钱沙华 [2] 

机构地区：[1]武汉大学化学与分子科学学院 [2]武汉大学资源与环境科学学院,武汉,430079

出　　处：《分析科学学报》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)

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.

关 键 词：交联壳聚糖 钒(V) 吸附 X射线光电子能谱 

分 类 号：O658.11[理学—分析化学]