壳聚糖/明胶互穿网络水凝胶对酸性橙II的吸附  

Adsorption of chitosan/gelatin interpenetrating network hydrogel for Acid Orange II dyes

作　　者：熊子豪 崔莉[1] 王军[1] 李连[1] 郭义[1] 张传杰[1] 朱平[1] 

机构地区：[1]武汉纺织大学生物质纤维及生态染整湖北省重点实验室纺织新材料与先进加工技术国家重点实验室培育基地,湖北武汉430073

出　　处：《印染》2015年第5期10-14,共5页China Dyeing and Finishing

基　　金：湖北省自然科学基金(2012FFB04602);武汉纺织大学大学生创新创业训练计划项目(2013CXXL039)

摘　　要：以壳聚糖、明胶为原料,京尼平为交联剂,制备了含交联剂的壳聚糖/明胶互穿网络水凝胶材料,并用红外光谱进行表征。试验考察了不同交联剂含量,以及吸附处理时p H值和温度对质量浓度为400 mg/L的酸性橙II染料的吸附性能。结果显示,当交联剂京尼平浓度为0.5 mmol/L,吸附处理p H值为3时,能够实现对酸性橙II染料的高效吸附,且温度越高吸附量越大;对染料的吸附行为符合准一级动力学吸附方程和Langmuir等温吸附模型。解吸试验结果说明,壳聚糖/明胶互穿网络水凝胶对染料的吸附能够实现循环利用。Taking chitosan and gelatin as raw materials and Genipin as a crosslinker, chitosan-gelatin in-terpenetrating network hydrogel materials are prepared and charaterized by infrared spectroscopy. Theadsorption properties of the materials with different concentrations of crosslinker to 100 mg/L Acid Or-ange Ⅱ dyes are investigated with different pH value and temperature. The results show that good ad-sorption to Acid Orange II dyes can be achieved with 0.5 mmol/L crosslinker Genipin and pH value 3.The adsorption quantity increases with the increase in the temperature, and the adsorption behavior fol-lows pseudo first order kinetics equation and Langmuir adsorption isotherm model. The desorption ex-periments show that the adsorption of chitosan/gelatin interpenetrating network hydrogel is recycable.

关 键 词：印染废水 壳聚糖 明胶 酸性染料 吸附 解吸 

分 类 号：X791[环境科学与工程—环境工程] O636.1[理学—高分子化学]