摘要
研究了壳聚糖对Fe2 + 的吸附行为 ,并进行了条件优化 ,得到了较为理想的合成产物。通过红外光谱和紫外光谱进行了表征 ,进而用化学分析、元素分析确定了配合物的组成 ,并利用TG DSC分析 ,采用常用的 2 2种机理函数 ,对非等温动力学数据进行了线性回归拟合处理 ,求得了配合物主要分解阶段热动力学最可机理函数和动力学参数 (E和A)。
The chelating effect of ferrous ions on chitosan have been investigated. By optimizing with the condition to the adsorption of ferrous ions, we have got the comparatively ideal synthetic product outcome. By way of IR spectrum and UV\|VIS spectrum corroborated the chelating effect between chitosan and ferrous ions, and using the element analysis and thermal analysis established the component of the chitosan\|ferrous complex. The thermal decomposition of the complex and its kinetics were studied by non\|isothermal thermogravimety. The stages of the decomposition were identified by TG\|DSC curve. The most probable mechanism function and the kinetic parameters(the activation energy E and pre\|exponential constant A ) were obtained from comparing the kinetic parameters by differential and integral methods.
出处
《化学通报》
CAS
CSCD
北大核心
2002年第12期849-853,共5页
Chemistry
基金
陕西省科委自然科学资助项目 (2 0 0 1H10 )
