2020 Volume 2020 Issue 295 Pages 140-151
Because of worldwide industrialization and increasing population, we are facing a problem concerning the availability of clean water. Therefore, the desalination of saline water using a reverse osmosis (RO) membrane is very important technology for producing a large amount of clean water. RO membrane technology has been well developed over the past 50 years. Although remarkable progress has been made in the fabrication of membranes, there is still a challenge to produce reliable membranes with antifouling properties, high mechanical strength, high tolerance to chlorine attack and a minimum thickness of the membrane barrier layer to provide a high flux. Multi-wall carbon nanotubes (CNT) have been added to the active layer of aromatic polyamide (PA)-RO membranes, with interesting results, such as better robustness. This review considers recent work on the synthesis, structure, performance, etc. of CNT/PA nanocomposite membranes.
