化工学报 ›› 2020, Vol. 71 ›› Issue (6): 2900-2911.DOI: 10.11949/0438-1157.20200002

• 材料化学工程与纳米技术 • 上一篇    下一篇

氧化石墨烯杂化分子印迹复合膜制备及性能研究

毛东阳(),杨丹,范杰平()   

  1. 南昌大学资源环境与化工学院,江西 南昌 330031
  • 收稿日期:2020-01-04 修回日期:2020-04-07 出版日期:2020-06-05 发布日期:2020-06-05
  • 通讯作者: 范杰平
  • 作者简介:毛东阳(1996—),男,硕士研究生,1245804512@qq.com
  • 基金资助:
    国家自然科学基金项目(21968017)

Preparation and properties of graphene oxide hybrid molecularly imprinted composite membranes

Dongyang MAO(),Dan YANG,Jieping FAN()   

  1. School of Resource, Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
  • Received:2020-01-04 Revised:2020-04-07 Online:2020-06-05 Published:2020-06-05
  • Contact: Jieping FAN

摘要:

采用改进的Hummers法,通过冷冻干燥制备了氧化石墨烯(GO)。以辛弗林盐酸盐为模板分子,水溶性的丙烯酰胺为功能单体,离子液体(溴代1-丁基-3-甲基咪唑)为致孔剂,把GO加入聚合液中,制备了GO杂化的分子印迹复合膜(GO-MIM)。利用透射电镜、扫描电镜、X射线衍射和红外光谱等方法对GO及GO-MIM进行了表征。通过将分子印迹膜技术与GO相结合,明显提高了分子印迹膜的力学性能。吸附及渗透实验表明,GO-MIM可在纯水溶剂体系,对辛弗林盐酸盐具有很好的选择性吸附能力和优先透过能力,体现了明显的分子印迹效果。

关键词: 分子印迹膜, 氧化石墨烯, 吸附, 分离, 辛弗林盐酸盐

Abstract:

Graphene oxide (GO) was prepared by the improved Hummers method and freeze-drying method. With synephrine hydrochloride as the template molecule, water-soluble acrylamide as the functional monomer, and ionic liquid (1-butyl-3-methylimidazole bromide) as the porogen, GO was added to the polymerization solution to prepare graphene oxide hybrid molecularly imprinted composite membrane (GO-MIM). Transmission electron microscopy, scanning electron microscopy, X-ray diffraction, and infrared spectroscopy were used to characterize GO and GO-MIM. By combining molecularly imprinted membrane technology with GO, the mechanical properties of MIM are significantly improved. Adsorption and permeation experiments show that GO-MIM can be used in pure water solvent system and has a good selective adsorption capacity and preferential permeability for synephrine hydrochloride.

Key words: molecularly imprinted membrane, graphene oxide, adsorption, separation, synephrine hydrochloride

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