多层氧化石墨烯膜的性能控制及其在水处理中的应用进展
首发时间:2019-06-12
摘要:随着经济的高速发展,污染环境和危害人体的废水亟需分离处理。氧化石墨烯(GO)优越的综合性能和膜技术的广泛应用使多层GO膜成为解决水环境污染和水资源短缺问题最具潜力的方法之一。简要介绍了多层GO膜的制备方法,重点梳理了控制GO膜分离性能的方法,详细介绍了GO膜的层数、氧化程度、改性对分离性能的影响,并通过分子动力学对多层GO膜模拟分析,对多层GO薄膜在去除重金属离子、脱盐、有机物脱除等方面的应用进行了综述。最后,展望了多层GO膜在水处理领域未来的发展和面临的挑战。
关键词: 多层氧化石墨烯膜 性能控制 水处理 膜分离 分子动力学
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Performance control of multilayer graphene oxide membrane and its application in water treatment
Abstract:With the rapid development of economy, wastewater needs to be separation treatment urgently, which pollutes the environment and is harmful to human. Due to the excellent overall properties of graphene oxide (GO) and the wide applicability of the membrane technology, multilayer GO membrane has become one of the most potential tools for solving the pressing global environment challenges, such as water pollution and fresh water scarcity. The preparation methods of controlling the separation performance of GO membrane are emphatically combed. The effects of the number of layers, oxidation degree and modification of GO membrane on the separation performance are detailed explained. And the multilayer GO membrane is simulated and analyzed by molecular dynamics, the applications of multilayer GO membrane in removal of heavy metal ions, desalination and removal of organic substance are reviewed. In the end, the future prospective and challenges of multilayer GO membrane in water treatment and purification were discussed.
Keywords: multilayer graphene oxide membrane performance control water treatment membrane separation molecular dynamics
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