一种石墨烯键合硅胶固定相的制备方法

Method for preparing graphene bonded silica gel stationary phase

Abstract

The invention discloses a method for preparing a graphene bonded silica gel stationary phase. The method comprises the steps: firstly, allowing carboxyl or hydroxyl on the surface of graphene oxide to generate a condensation reaction with amino on the surface of aminopropyl silica gel, carrying out covalent bonding of graphene oxide to the surface of the aminopropyl silica gel surface, and thus obtaining a graphene oxide bonded silica gel; and then allowing the graphene oxide bonded silica gel material to under the hydrazine hydrate action, reducing hydroxyl and carboxyl on the surface of the graphene oxide, and thus obtaining a graphene bonded silica gel stationary phase material. The preparation method has many advantages of high stability, simple preparation process, good separation performance and the like.
本发明公开了一种石墨烯键合硅胶固定相的制备方法。该方法首先将氧化石墨烯表面的羧基或羟基与氨丙基硅胶表面的氨基发生缩合反应,将氧化石墨烯共价键合到氨丙基硅胶表面,制备得到氧化石墨烯键合硅胶;再将氧化石墨烯键合硅胶材料在水合联氨的作用下,将氧化石墨烯表面的羟基和羧基还原,制备得到石墨烯键合硅胶固定相材料,它具有稳定性高、制备过程简单和分离性能好等诸多优点。

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Patent Citations (0)

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NO-Patent Citations (2)

    Title
    QIAN LIU ET AL.: "“Graphene and Graphene Oxide Sheets Supported on Silica as Versatile and High-Performance Adsorbents for Solid-Phase Extraction”", 《ANGEWANDTE CHEMIE》
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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    CN-105921137-ASeptember 07, 2016中国科学院兰州化学物理研究所Preparation method of graphene quantum dot bonded silica gel stationary phase