Topic
Thin-film composite membrane
About: Thin-film composite membrane is a research topic. Over the lifetime, 2471 publications have been published within this topic receiving 89783 citations.
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TL;DR: A review of the field of thin film composite reverse osmosis membranes, with emphasis on the chemistry and composition of these membranes, is given in this article, with particular attention given to composite membranes that have found commercial use, whether in the present or past.
1,627 citations
TL;DR: In this article, a new concept for formation of mixed matrix reverse osmosis membranes by interfacial polymerization of nanocomposite thin films in situ on porous polysulfone supports is reported.
1,104 citations
TL;DR: In this article, the physicochemical properties of reserve osmosis (RO) and nanofiltration (NF) polyamide (PA) membranes are largely determined by their PA chemistry and coatings, if any.
877 citations
TL;DR: The development of a high performance thin-film composite membrane for forward osmosis applications with high water flux was directly related to the thickness, porosity, tortuosity, and pore structure of the polysulfone support layer.
Abstract: Recent studies show that osmotically driven membrane processes may be a viable technology for desalination, water and wastewater treatment, and power generation. However, the absence of a membrane designed for such processes is a significant obstacle hindering further advancements of this technology. This work presents the development of a high performance thin-film composite membrane for forward osmosis applications. The membrane consists of a selective polyamide active layer formed by interfacial polymerization on top of a polysulfone support layer fabricated by phase separation onto a thin (40 μm) polyester nonwoven fabric. By careful selection of the polysulfone casting solution (i.e., polymer concentration and solvent composition) and tailoring the casting process, we produced a support layer with a mix of finger-like and sponge-like morphologies that give significantly enhanced membrane performance. The structure and performance of the new thin-film composite forward osmosis membrane are compared wi...
870 citations
TL;DR: In this article, the properties of polyamide thin films formed via identical interfacial polymerization conditions over porous polysulfone supports with different physical and chemical properties were discussed, including dextran rejections, water contact angles, and surface roughness statistics.
753 citations