Journal
DESALINATION AND WATER TREATMENT
Volume 51, Issue 16-18, Pages 3295-3316Publisher
DESALINATION PUBL
DOI: 10.1080/19443994.2012.749055
Keywords
Polymeric nanocomposite membrane; Nanoparticle; Blending; Deposition
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Nanocomposite membranes benefit from both flexibility and processability of polymers and the thermal and mechanical stability of nanoparticles at the same time. This paper discusses the effect of the presence of various nanoparticles on the morphology and efficiency of the polymeric membranes in the separation of liquid phase. The presence of nanoparticles usually increases the hydrophilicity and decreases the fouling of polymeric membranes during the filtration process. The presence of TiO2, Al2O3, ZrO2, SiO2, Fe3O4, Ag, and Fe nanoparticles increases the mechanical and thermal resistant of the polymeric membranes. The TiO2 and Ag result in anti-bacterial characteristics, ZrO2 and Fe create catalytic properties, SiO2 nanoparticle causes conductivity properties, and Fe3O4 nanoparticle gives magnetic characteristics to polymeric membranes. Understanding the synthesis method (in situ or ex situ) and the combination routes (blending with polymeric matrix or deposition on the surface) of the used nanoparticles is very important in determining the structure and performance of the composite membranes during liquid filtration. Findings from such studies are highlighted and the future possibility of nanocomposite membrane application in liquid filtration is also discussed.
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