Page 67 - 精细化工2019年第9期
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第 36 卷第 9 期                             精   细   化   工                                  Vol.36, No.9
             201 9 年 9 月                             FINE CHEMICALS                                 Sept.    2019


              功能材料
                      木犀草素配位印迹聚合物的制备及吸附性能



                                  乐   薇,锁进猛,徐文广,杨   立,龚乃超

                                   (武汉工商学院  环境与生物工程学院,湖北  武汉    430065)

                                            2+
                 摘要:采用沉淀聚合法,结合 Zn 的配位作用,在水溶液中制备了木犀草素配位印迹聚合物(LUT-CIPs),并
                                                                                              2+
                 考察了 LUT-CIPs 的吸附性能。结果表明,LUT-CIPs 的最佳制备条件为:n〔模板分子(木犀草素-Zn )〕∶n〔功
                 能单体(丙烯酰胺)〕∶n〔交联剂(N,N-亚甲基双丙烯酰胺)〕=1∶4∶30。在该条件下聚合物对醇相中的木犀草素
                 的吸附量达 36.45 mg/g、对芹菜素和芸香叶苷竞争底物的选择性系数分别达到 5.09 和 3.35;木犀草素在 LUT-CIPs
                 的吸附过程符合 Freundlich 等温吸附模型和准二级动力学方程;吸附液中加入的 14 种金属盐均可提高 LUT-CIPs
                 的吸附容量,金属离子和酸根离子种类对吸附有影响,其中加入 Pb(Ac) 2 后吸附容量提高最明显,为加入 Zn(Ac) 2
                 的 2.48 倍、未加金属盐的 5.20 倍。
                 关键词:木犀草素;分子印迹;配位;吸附性能;功能材料
                 中图分类号:TQ041.8;R284.2      文献标识码:A      文章编号:1003-5214 (2019) 09-1795-08


                              Preparation and Adsorption Properties of Luteolin

                                           Complex Imprinted Polymers


                             YUE Wei, SUO Jin-meng, XU Wen-guang, YANG Li, GONG Nai-chao
                 (College of Environmental and Biological Engineering, Wuhan Technology and Business University, Wuhan 430065,
                 Hubei, China)


                 Abstract:  A  series  of  luteolin  complex  imprinted  polymers  (LUT-CIPs)  were  synthesized  in  aqueous
                                                                                        2+
                 solution by precipitation polymerization combined with the coordination effect of Zn . Their adsorption
                 properties  were  also  studied.  The  results  showed  that  the  optimum  condition  for  the  preparation  of
                                                  2+
                 LUT-CIPs were as follows: n(luteolin-Zn  as template molecule)∶n(acrylamide as functional monomer)∶
                 n(N,N-methylenebisacrylamide  as  crosslinker)=1∶4∶30.  Under  this  condition,  the  obtained  LUT-CIPs
                 possessed  the  highest  adsorption  properties,  and  the  adsorption  capacity  for  luteolin  from  ethanol  phase
                 reached 36.45 mg/g, the selectivity coefficient of luteolin for apigenin was 5.09 and for rutin was 3.35. The
                 adsorption process of luteolin on LUT-CIPs conformed to the Freundlich isothermal adsorption model and
                 the pseudo-second-order kinetic equation. The adsorption capacity of LUT-CIPs was increased when adding
                 metal salts into solution, the kinds of metal ion and acid radical influenced the adsorption. After adding
                 Pb(Ac) 2 into the adsorption solution, the adsorption capacity of LUT-CIPs increased most obviously, which
                 was 2.48 times as much as adding Zn(Ac) 2 and 5.20 times as much as adding no metal salts.
                 Key words: luteolin; molecular imprinting; coordination; adsorption properties; functional materials


                                                      [1]
                 木犀草素为一种典型的黄酮类天然化合物 ,存                         选择性富集作用的物质以分离天然植物中的木犀草
                                                  [4]
            在于多种植物中,具有抗肿瘤                [2-3] 、抗菌 、抗氧         素不但有研究意义,还具有经济价值。分子印迹技
                                           [7]
               [5]
                               [6]
            化 以及对血脑屏障 、呼吸系统 、神经系统                       [8-9]  术是新发展起来的一种模拟抗体-抗原相互作用的
            的保护等作用。但从天然植物中分离获得高纯度的                             技术,它以某一种特定靶分子为模板,制备出对该
            木犀草素仍是一个研究难题。因此,制备一种具有                             特定模板分子具有特异性识别作用的印迹聚合物


                 收稿日期:2018-09-05;  定用日期:2019-03-04; DOI: 10.13550/j.jxhg.20180659
                 基金项目:湖北省教育厅科学研究计划项目(B2017321);武汉工商学院校学术团队资助项目(SXTD2015003)
                 作者简介:乐   薇(1979—),女,副教授,E-mail:yuewei11@126.com。
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