乙二胺螯合细菌纤维素的制备及其吸附Cu^2＋研究

Preparation of ethylenediamine chelating bacterial cellulose for the adsorption of copper ions

以细菌纤维素为原料制备乙二胺螯合细菌纤维素。通过红外光谱仪、元素分析仪对产物进行了表征。研究了乙二胺螯合细菌纤维素对铜离子的吸附动力学、等温吸附等特征。结果表明,吸附动力学可用拟二级速度方程来描述,吸附平衡符合Freundlich等温吸附方程,并对其吸附与解吸性能进行了分析。

Ethylenediamine chelating bacterial cellulose has been synthesized by bacterial cellulose. The product is characterized by the infra-red spectroscopy and elemental analyser. Its characteristics, such as adsorption kinetics and adsorption isotherms for copper ions are studied. The results show that the adsorption kinetics can be described by pseudo-second-level velocity equation. The adsorption equilibrium accords with Freundlich isotherm adsorption equation. The adsorption and desorption properties of ethylenediamine chelating bacterial cellulose are also analyzed.