铁(Ⅲ)模板-硫脲交联壳聚糖的合成及其对Fe(Ⅲ)和Fe(Ⅱ)吸附性能比较  

Comparison of Adsorption Behavior of Fe(Ⅱ)and Fe(Ⅲ)Ions on Thiourea Cross-linked Chitosan with Fe(Ⅲ)as Template

作　　者：代军[1] 张浩[1] 杨平华[1] 

机构地区：[1]九江学院化环学院

出　　处：《光谱实验室》2013年第6期2863-2869,共7页Chinese Journal of Spectroscopy Laboratory

基　　金：江西省自然科学基金;项目编号:20114BAB203019

摘　　要：合成了铁(Ⅲ)模板-硫脲交联壳聚糖,研究了F e(Ⅲ)和Fe(Ⅱ)在模板交联壳聚糖上的吸附行为。考察了pH值、接触时间等因素对吸附的影响,结果表明,适宜的pH值为5.0,吸附平衡时间为60min。研究了吸附热力学和吸附动力学,结果表明,吸附符合L angmuir模型和准二级动力学模型。A new type of thiourea cross-linked chitosan with Fe （Ⅲ） as template （TCCTS template） was synthesized. The adsorption of Fe （ Ⅱ ） and Fe （ Ⅲ ） on TCCTS template was studied. The effect factors such as pH,contact time on adsorption were considered. The results showed that the optimum pH value for adsorption was pH = 5.0 and the adsorption equilibrium time was about 60 min. The adsorption isotherms and kinetics were investigated,equilibrium data agreed very well with the Langmuir model and the Pseudo second-order model could describe adsorption process better than Pseudo first-order model.

关 键 词：铁 硫脲 交联壳聚糖 模版 吸附 

分 类 号：O657.31[理学—分析化学] O657.33[理学—化学]