戊二酸改性Pb(Ⅱ)印迹壳聚糖基复合膜的制备与表征  

PREPARATION AND CHARACTERISATION OF GLUTARIC ACID-MODIFIED Pb(Ⅱ)-IMPRINTED CHITOSAN-BASED COMPOSITE MEMBRANES

作　　者：孟辰 陈德军[1,2] 邹金池 付广钦 赵梦奇 Meng Chen;Chen Dejun;Zou Jinchi;Fu Guangqin;Zhao Mengqi(School of Chemical Engineering,Xinjiang University,Urumqi 830017,Xinjiang,China;Key Laboratory of Petroleum and Natural Gas Fine Chemicals,Ministry of Education&Autonomous Region,Urumqi 830017,Xinjiang,China)

机构地区：[1]新疆大学化工学院,新疆乌鲁木齐830017 [2]石油天然气精细化工教育部&自治区重点实验室,新疆乌鲁木齐830017

出　　处：《精细石油化工》2025年第2期56-60,共5页Speciality Petrochemicals

基　　金：新疆维吾尔自治区自然科学基金项目(2022D01C28)。

摘　　要：以戊二酸为改性剂,Pb(Ⅱ)为印迹离子,壳聚糖混合聚乙烯醇为主要原料,采用水合法制备了戊二酸改性Pb(Ⅱ)印迹壳聚糖基复合膜。通过红外光谱、X射线衍射和扫描电镜对印迹壳聚糖基复合膜的结构和形态进行了表征,同时测试了印迹壳聚糖基复合膜对Pb(Ⅱ)的吸附性能。结果表明:经过Pb(Ⅱ)印迹技术处理的戊二酸改性膜,在Pb(Ⅱ)吸附能力上展现出显著优势。饱和吸附容量达79.53 mg/g,在pH=4时吸附性能达到顶峰,5次循环后,吸附效能仅下降约4.64%。A glutaric acid-modified Pb(Ⅱ)-imprinted chitosan-based composite film was prepared by hydration reaction using glutaric acid as the modifier,Pb(Ⅱ)as the imprinting ion,and chitosan mixed with poly(vinyl alcohol)as the main raw materials.The structure and morphology of the imprinted chitosan-based composite film were characterized by infrared spectroscopy,X-ray diffraction,and scanning electron microscopy,and the adsorption performance of the imprinted chitosan-based composite film for Pb(Ⅱ)was also tested.The results show that the glutaric acid-modified film treated with the Pb(Ⅱ)imprinting technique exhibits significant advantages in Pb(Ⅱ)adsorption capacity.The saturated adsorption capacity reaches 79.53 mg/g,and the adsorption performance reaches its peak at pH=4.After 5 cycles,the adsorption efficiency only decreases by about 4.64%.It is promising to be used for Pb(Ⅱ)-containing wastewater treatment.

关 键 词：壳聚糖 离子印迹聚合物 吸附性能 表征 

分 类 号：TQ424[化学工程]