壳聚糖/β-环糊精复合物的制备及应用  

Preparation and Application of Chitosan/β-Cyclodextrin Complex

作　　者：刘佳鑫 王思琪 周悦 王西 赵文珍 赵珺 LIU Jiaxin;WANG Siqi;ZHOU Yue;WANG Xi;ZHAO Wenzhen;ZHAO Jun(School of Food Science and Engineering,Changchun University,Changchun 130022;Zhengzhou City River Managem ent Office,Zhengzhou 450000)

机构地区：[1]长春大学食品科学与工程学院,长春130022 [2]郑州市城区河道管理处,郑州450000

出　　处：《食品工业》2019年第12期196-200,共5页The Food Industry

基　　金：长春大学科研项目（2019JBC26L39）

摘　　要：工业废水中往往含有大量氯离子(Cl^-),为了使废水中Cl^-排放量达到排放要求,首先利用改性剂聚乙二醇400对β-环糊精进行改性合成β-环糊精聚合物,然后利用戊二醛将壳聚糖与β-环糊精聚合物进行交联,制备壳聚糖/β-环糊精复合物,考察壳聚糖与β-环糊精聚合物质量比、反应温度、反应时间、戊二醛添加量对废水中Cl^-吸附量和吸附率的影响。结果表明,当壳聚糖与β-环糊精聚合物质量比为1︰5、反应温度为80℃、反应时间为90min、戊二醛添加量为1.5 mL时, Cl^-的吸附量和吸附率达到最佳,分别为30.34 mg·g^-1和40.78%。Industrial wastewater often contains a large amount of chloride ions(Cl^-) in order to meet the emission requirements for Cl^- emissions in wastewater. In this study, the β-cyclodextrin polymer was synthesized by modifying the β-cyclodextrin with the modifier polyethylene glycol 400(PEG 400), then chitosan was crosslinked with the β-cyclodextrin polymer by using glutaraldehyde to prepare a chitosan/β-cyclodextrin complex. The mass ratio of chitosan to β-cyclodextrin polymer, reaction temperature, reaction time, and the addition amount of glutaraldehyde were used as the main factors to examine the adsorption rate and adsorption capacity of Cl^- in water by the composites prepared in the study. The optimum conditions for the experiment were as follows: mass ratio of chitosan to β-cyclodextrin polymer was 1︰5, reaction temperature was 80 ℃, reaction time was 90 min, and the amount of glutaraldehyde was 1.5 mL. Under the optimal conditions, the adsorption and adsorption rates of chitosan/β-cyclodextrin complex for Cl^- were 30.34 mg·g^-1 and 40.78%, respectively.

关 键 词：Β-环糊精聚合物 壳聚糖 复合物 Cl^- 

分 类 号：O647.33[理学—物理化学] X703[理学—化学]