化工进展 ›› 2021, Vol. 40 ›› Issue (10): 5590-5599.DOI: 10.16085/j.issn.1000-6613.2020-2143

• 材料科学与技术 • 上一篇    下一篇

二硫化钼纳米片基水处理纳滤/反渗透膜研究进展

赵东升()   

  1. 南阳师范学院土木建筑工程学院,河南 南阳 473061
  • 收稿日期:2020-10-26 修回日期:2021-01-12 出版日期:2021-10-10 发布日期:2021-10-25
  • 作者简介:赵东升(1984—),男,博士,讲师,研究方向为膜法水处理技术。E-mail:zds123123@yeah.net
  • 基金资助:
    河南省科技攻关计划(202102310260);河南省高等学校重点科研项目(20B610005)

Research progress in molybdenum disulfide nanosheet-based NF/RO membranes for water treatment

ZHAO Dongsheng()   

  1. College of Civil Engineering and Architecture, Nanyang Normal University, Nanyang 473061, Henan, China
  • Received:2020-10-26 Revised:2021-01-12 Online:2021-10-10 Published:2021-10-25

摘要:

二硫化钼(MoS2)纳米片的层内固有缺陷以及层间纳米限域通道的存在,有利于提高水处理纳滤/反渗透(NF/RO)膜的渗透选择性。本文首先介绍了MoS2纳米片的“三明治”结构,其具有易功能化、高吸附容量和氧化还原去除能力、层间纳米限域通道的光滑性和稳定性及抗污染等特性;然后重点综述了MoS2基纳米孔膜、层叠膜和混合基质膜的制备方法及膜性能的影响因素;最后总结了MoS2纳米片基水处理NF/RO膜未来发展亟待解决的关键问题,主要包括研究大尺寸纳米片和均匀亚纳米孔的可控制备方法,开发超薄、高度有序的MoS2分离层构建方法,探索层间纳米限域通道内分子和离子的传输行为和潜在的分离机理,开发增强与聚合物基质界面相容性的改性策略,对下一代高性能水处理NF/RO膜的研发具有启发意义。

关键词: 膜, 纳滤, 反渗透, 二硫化钼

Abstract:

The inherent defects in the molybdenum disulfide (MoS2) nanosheets and the nano-confined channels between the nanosheets are beneficial to enhance the perm-selectivity of nanofiltration/reverse osmosis (NF/RO) membranes. In this paper, the sandwich structure of the MoS2 nanosheets, and their merits of easy functionalization, high adsorption capacity and redox removal ability, good smoothness and stability of interlayer nano-confined channels, and nice antifouling properties are introduced firstly. After that, the latest research progress of MoS2 nanosheets in nanoporous membranes, laminated membranes and mixed matrix membranes are reviewed. Finally, the critical issues in the future development of the MoS2 nanosheets based NF/RO membranes are summarized, mainly including the preparation of large-scale nanosheets and uniform sub-nanopores, the construction of ultra-thin and perfect MoS2 separation layer, the exploration of molecular and ion transport behaviors and potential separation mechanisms in the nano-confined channels, and the modification strategies to enhance their interfacial compatibility in polymer matrix, which are of great significance for the development of the next-generation high-performance NF/RO membranes.

Key words: membranes, nanofiltration, reverse osmosis, molybdenum disulfide

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