以活性炭和壳聚糖为复配原料合成复配壳聚糖树脂,对树脂的结构进行扫描电镜和红外表征,并研究了复配壳聚糖树脂对Cu2＋的等温吸附动力学特性。结果表明复配改性后的壳聚糖具有多孔结构,比表面积增大;交联反应发生在壳聚糖分子中的氨基和羟基上;复配壳聚糖树脂对Cu2＋的吸附符合Langmuir和Freundlich等温吸附模型;其吸附动力学过程符合Lagergren二级动力学方程,吸附过程容易进行。
Complex chitosan resin was synthesized with the materials of chitosan and activated carbon. The structure of the resin was characterized by SEM and FT-IR and the isothermal adsorption and adsorption kinet- ics were studied. Results show that the complex chitosan has porous structure and larger surface area. The re- action of crosslinking is on the group of --NH3 and --OH. The adsorption isotherm of the Cu2+ on the resin fits the model of Langmuir and Freundlich. The adsorption kinetics fits Lagergren the second-order equation well and the adsorption is easy to proceed.
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