【摘要】 研究了壳聚糖对Fe2 + 离子的吸附动力学行为和吸附条件优化 ,得到了较为理想的合成产物。用紫外光谱、红外光谱、元素分析和热分析对配合物的组成进行了表征。结果表明 ,壳聚糖与Fe2 + 之间发生了配位作用 ,其吸附行为可用Langmuir单分子层吸附机理解释 ,且求得吸附表观活化能为 2 0 2 3kJ mol和Lagergren一级速率常数为 0 2 5h- 1 。更多还原

【Abstract】 The isothermal sorption kinetics of chitosan(CTS) for ferrous ions has been investigated. The structure of the chelate compound was confirmed by IR spectra?UV VIS spectra?elemental and thermal analysis. The results were satisfied with the Langmuir single molecule layer adsorption mechanism and the Lagergren one order equation. The apparent adsorption activation energy is 20 23 kJ/mol and the sorption rate constant of the Lagergren one order sorption is 0 25 h -1 at 293 15 K.更多还原