期刊
RSC ADVANCES
卷 8, 期 18, 页码 10040-10056出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra12835e
关键词
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资金
- National Natural Science Foundation of China [11575126]
- Qaidam Salt Chemical Joint Fund of National Natural Science Foundation of China - People's Government of Qinghai Province [U1607117]
- Natural Science Foundation of Tianjin [16JCZDJC36400]
- Science and Technology Plans of Tianjin [15PTSYJC00230]
Forward osmosis (FO) processes have recently attracted increasing attention and show great potential as a low-energy separation technology for water regeneration and seawater desalination. However, a number of challenges, such as internal concentration polarization, membrane fouling, and the tradeoff effect, limit the scaleup and industrial practicality of FO. Hence, a versatile method is needed to address these problems and fabricate ideal FO membranes. Among the many methods, incorporating polymeric FO membranes with inorganic nanomaterials is widely used and effective and is reviewed in this paper. The properties of FO membranes can be improved and meet the demands of various applications with the incorporation of nanomaterials. This review presents the actualities and advantages of organic-inorganic hybrid nanocomposite FO membranes. Nanomaterials applied in the FO field, such as carbon nanotubes, graphene oxide, halloysite nanotubes, silica and Ag nanoparticles, are classified and compared in this review. The effects of modification methods on the performance of nanocomposite FO membranes, including blending, in situ interfacial polymerization, surface grafting and layer-by-layer assembly, are also reviewed. The outlook section discusses the prospects of organicinorganic hybrid nanocomposite FO membranes and advanced nanotechnologies available for FO processes. This discussion may provide new opportunities for developing novel FO membranes with high performance.
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