N-亚水杨基壳聚糖Schiff碱树脂的合成及其吸附性能的研究

Study on Synthesis of N-salicylidenea Chitosan Schiff Base Resin and Its Adsorptive Properties

利用壳聚糖 C2 位上的活泼氨基与水杨醛进行缩合反应 ,合成了 N 亚水杨基壳聚糖 Schiff碱树脂。测定了该树脂对过渡金属离子的吸附性能 ,结果表明 ,该树脂对 Cu2 +的吸附量较高 ,为32 .7mg/g;吸附速度快 ,在 2 h内吸附率可达 85% ,并具有一定的选择性。

N salicylidenea chitosan schiff base resin (SCTS) was synthesized with chitosan and salicylaldehyde schiff base by condensation reaction.Its structrue was characterized by element analysis,IR,Xray poder diffraction and its adsorptive properties for Cu 2+ ,Zn 2+ ,Ni 2+ ,Fe 3+ ,Co 2+ were also studied.The results showed that the resin has good adsoptive properties and selectivity for Cu 2+ 。