PAN基四氮唑螯合纤维制备及对Hg(Ⅱ)的吸附性能研究  

SYNTHESIS OF TETRAAZOLYL-FUNCTIONALIZED CHELATING FIBERS AND ITS ADSORPTION PERFORMANCE ON Hg(Ⅱ)

作　　者：张立科[1,2] 刘傲[1] 王倩[3] 原思国[1] 黄佳佳[1] ZHANG Like;LIU Ao;WANG Qian;YUAN Siguo;HUANG Jiajia(School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China;College of Chemical and Materials Engineering,Institute of Surface Micro and Nano Materials,Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province,Xuchang University,Xuchang 461000,China;Agricultural Technology Promotion Center,Zhengzhou 450001,China)

机构地区：[1]郑州大学化工学院,郑州450001 [2]许昌学院化工与材料学院,表面微纳材料研究所河南省微纳能量储存与转换材料重点实验室,河南许昌461000 [3]郑州市农业技术推广中心,郑州450001

出　　处：《离子交换与吸附》2020年第3期200-210,共11页Ion Exchange and Adsorption

基　　金：国家自然科学基金项目(NO.51503184,51873198)

摘　　要：通过聚丙烯腈纤维(PAN)与三乙烯四胺(TETA)适度交联并与叠氮钠的[3+2]环加成反应,合成了一种新型四氮唑螯合纤维。讨论了反应温度、时间和试剂用量对产物性能的影响,利用元素分析、红外光谱、扫描电镜对所得产物进行了系统表征,并初步考察了纤维的吸附性能及循环再生性能。结果表明,该螯合纤维对Hg(Ⅱ)的吸附容量可达524.1mg/g,在含Hg(Ⅱ)废水处理方面有较好应用前景。A novel tetraazolyl-functionalized chelating fiber(TT-PAN) was prepared via the [3+2] cycloaddition reaction of polyacrylonitrile(PAN) and sodium azide. PAN fiber was pre-crosslinked by triethylenetetramine(TETA) to ensure the above reaction and fiber’s practical application. The physical and chemical structures of the fibrous adsorbent were characterized by EA, FT-IR and SEM. And the adsorption properties of TT-PAN fiber were also investigated;the results showed that the adsorption capacity of TT-PAN fiber was above 500 mg/g for Hg(Ⅱ), which was expected to be applied in the treatment of mercury-containing wastewater.

关 键 词：聚丙烯腈 交联 环加成反应 吸附 Hg(Ⅱ) 

分 类 号：O647.3[理学—物理化学]