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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。
In this paper, the adsorption mechanism of vanadium (Ⅴ) by cross-linked chitosan was studied by XPS. The XPS spectra of vanadium (Ⅴ) before and after cross-linked chitosan (CCTS) The chemical shifts of both N1s and V2p3 / 2 peaks of CCTS showed that there was coordination reaction between vanadium (Ⅴ) and the -NH2 group of the crosslinked chitosan. The effect of crosslinking chitosan on vanadium (V) adsorption is mainly chemical adsorption.