离子型超交联聚合物吸附罗丹明B  

Ionic Hypercrosslinked Polymer for Rhodamine B Adsorption

作　　者：王科伟[1] 午赵霞 刘慧君[1] 郭永[1] 崔晓娜 任斐 贾治芳[1] WANG Kewei;WU Zhaoxia;LIU Huijun;GUO Yong;CUI Xiaona;REN Fei;JIA Zhifang(School of Chemistry and Chemical Engineering,Shanxi Datong University,Datong 037009,Shanxi,China)

机构地区：[1]山西大同大学化学与化工学院,化学生物传感山西省重点实验室,山西大同037009

出　　处：《功能高分子学报》2022年第5期461-467,共7页Journal of Functional Polymers

基　　金：国家自然科学基金面上项目(21975146);山西省省筹资金资助回国留学人员科研项目(2020-134);山西省应用基础研究计划青年项目(201801D221096);大同市工业重点研发计划项目(2019028,2018013)。

摘　　要：为了高效吸附废水中的可溶性有机染料,以4-苯胺基苯磺酸钠和苯为单体,二甲氧基甲烷为交联剂,在无水FeCl_(3)催化下,经过付-克反应一步合成了磺酸钠离子(—SO_(3)Na)修饰的超交联聚合物(HCP-SO_(3)Na)。通过元素分析、红外光谱、N_(2)吸/脱附分析、固态核磁共振波谱和热重分析对HCP-SO_(3)Na的结构和热性能进行了表征。结果表明,HCP-SO_(3)Na是一种比表面积大、热稳定性强的无定形微孔有机聚合物,比表面积为587 m^(2)/g,微孔面积为411 m^(2)/g。通过对阳离子染料罗丹明B(RhB)的吸附研究表明,—SO_(3)Na基团的引入,可增加HCP对RhB的饱和吸附量,最大吸附量达431 mg/g,吸附符合准二级动力学模型和Langmuir模型,且循环吸附5次之后,吸附性能无明显降低。Hypercrosslinked polymer(HCP)is a class of microporous organic polymer connected by light elements(C,H,O,and N)through covalent bonds.In order to efficiently adsorb soluble organic dyes in water treatment,here,an ionic HCP(HCP-SO_(3)Na)was prepared through an efficient Friedel-Crafts reaction from sodium 4-(phenylamino)benzenesulfonate and benzene in the presence of formaldehyde dimethyl acetal and anhydrous FeCl_(3).A series of characterizing techniques such as elemental analysis,infrared spectroscopy,N_(2)adsorption/desorption analysis,solid-state^(13)C nuclear magnetic resonance spectroscopy and thermogravimetric analysis were employed to characterize the structure and thermal property of the ionic polymer.It was found that HCP-SO_(3)Na was an amorphous microporous polymer with large specific surface area and high thermostability.The specific surface area and micropore area were 587 m^(2)/g and 411 m^(2)/g,respectively.The adsorption of HCP-SO_(3)Na for the organic dye of Rhodamine B demonstrated the―SO_(3)Na groups distributing uniformly in the polymer could increase the saturation capacity of HCP.The maximum adsorption capacity was up to 431 mg/g.The adsorption process conformed to kinetic pseudo-second-orde model and Langmuir model.HCP-SO3Na can be easily recovered and reused five times without significant loss of activity.

关 键 词：超交联聚合物 离子型多孔材料 罗丹明B 染料吸附 

分 类 号：O631.5[理学—高分子化学]