CIESC Journal ›› 2020, Vol. 71 ›› Issue (6): 2900-2911.DOI: 10.11949/0438-1157.20200002

• Material science and engineering, nanotechnology • Previous Articles     Next Articles

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

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
  • 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)

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

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

CLC Number: