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以壳聚糖为原料,乙酸乙酯为致孔剂,环氧氯丙烷为交联剂,通过交联法制备出改性壳聚糖,考察了交联壳聚糖微球对喹乙醇吸附的影响。结果表明,V(壳聚糖)∶V(乙酸乙酯)∶V(环氧氯丙烷)=30∶1∶1时,制备的交联壳聚糖微球对喹乙醇吸附性能较好;红外光谱表明,环氧氯丙烷与壳聚糖发生反应;扫描电镜分析验证环氧氯丙烷用量对交联壳聚糖微球吸附性能有一定影响;吸附动力学曲线得知交联壳聚糖微球在3 h对喹乙醇吸附达到平衡,有较好的吸附速度;与类似物(喹烯酮和乙酰甲喹)吸附特性比较得知,交联壳聚糖微球对喹乙醇有较好的选择吸附性。
Using chitosan as raw material, ethyl acetate as porogen and epichlorohydrin as crosslinking agent, modified chitosan was prepared by cross-linking method. The effects of cross-linked chitosan microspheres on the adsorption of olaquindox influences. The results showed that the crosslinked chitosan microspheres prepared by the method of V (chitosan): V (ethyl acetate): V (epichlorohydrin) = 30:1:1 had better adsorption properties for olaquindox; The spectra showed that epichlorohydrin reacted with chitosan. Scanning electron microscopy analysis confirmed the amount of epichlorohydrin cross-linked chitosan microspheres adsorption performance has some influence; adsorption kinetics curve that cross-linked chitosan microspheres in 3 h on the olaquindox adsorption equilibrium, with a good adsorption speed; and analogues (Quinocetone and mequindox) adsorption characteristics comparison, cross-linked chitosan microspheres olaquindox has a better choice of adsorption.