氧化石墨烯改性聚酰胺膜研究进展

doi:10.19964/j.issn.1006-4990.2020-0640

摘要/Abstract

摘要：

聚酰胺膜广泛应用于海水淡化、苦咸水脱盐及废水处理等领域,复杂、多类型的应用场景对膜性能提出了更高要求。氧化石墨烯（GO）以优异的机械、化学稳定性及亲水性等优点引起了学者的广泛关注。利用GO改性聚酰胺膜,可以改善膜的水通量、抗污染及耐氯性等性能。综述了聚酰胺膜在酸性和含氯溶液中的降解过程,介绍了GO结构特征,重点关注了利用GO在聚酰胺膜支撑层中、支撑层与功能层间、功能层中及功能层表面进行改性以提高膜性能的研究进展,对GO改性聚酰胺膜中金属离子及水传质过程进行了简要介绍。最后,提出未来可以从完善GO改性聚酰胺膜抗污机理、提高GO在膜基质中的稳定性、提高GO在溶液中的分散性及增强GO改性聚酰胺膜耐酸性等方面作进一步研究。

关键词: 纳米材料, 膜, 氧化石墨烯, 水处理, 污染

Abstract:

Polyamide membrane is widely used in seawater softening,brackish water desalination,wastewater treatment and other fields.Higher requirement for polyamide membrane has been put forward for various application scenarios.Graphene oxide（GO） has attracted much attention of scholars for its excellent mechanical property,chemical stability and hydrophilici-ty.Polyamide membrane was modified by GO in different layers to improve its water flux,antipollution and chlorine-resistance.The degradation process of polyamide membrane in acidic and chlorine-containing solution was reviewed and GO structure characteristics was introduced.The research progress in polyamide membrane modified by GO in the support layer,between the support and functional layer,in the functional layer and the surface of the functional layer to improve the performance of the membrane were mainly focused.The mass transfer processes of metal ions and water molecules in polyamide membrane modi-fied by GO were briefly introduced.Finally,it was suggested that the further research could be carried out from the aspects of perfecting the anti-fouling mechanism of GO modified polyamide membrane,improving the stability of GO in membrane matrix,increasing the dispersion of GO in solution,enhancing the acid resistance of GO modified polyamide membrane in the future.

Key words: nanomaterial, membrane, graphene oxide, water treatment, pollution

中图分类号:

TQ127.11

白露,王敏,杨红军,彭正军,赵有璟,李志录. 氧化石墨烯改性聚酰胺膜研究进展[J]. 无机盐工业, 2021, 53(10): 15-21.

Bai Lu,Wang Min,Yang Hongjun,Peng Zhengjun,Zhao Youjing,Li Zhilu. Research progress of graphene oxide modified polyamide membrane[J]. Inorganic Chemicals Industry, 2021, 53(10): 15-21.

图/表 2

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