【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。更多还原

【Abstract】 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.更多还原