Ceramic Ultrafiltration Membrane from Nanosilica Particles

概要

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This study attempts to develop asymmetric ceramic membrane filter from nanosilica particles for ultrafiltration (UF) membrane. The alumina tube was used as a support and was coated with SiC which acted as an intermediate layer or microfiltration (MF) layer. The UF membrane was developed using the filtration technique through chemical suspension of the particles. Nanosilica was suspended in HCl acid, iso-propanol and acetone before it was deposited on the alumina tube using a special coating assembly. The membranes were characterised for pore size, thickness and microstructure. This study found that the use of nanoparticles for membrane development could easily control the pore size as well as the thickness of the membrane. The uniformity of the membrane thickness could also be achieved through this filtration technique.
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