Abstract
Enhanced α-alumina tight ultrafiltration (UF) membranes were fabricated by using a facile nanoparticle doping sol-gel method. The addition of nanoparticles could not only promote the phase transition of alumina from γ to α phase at low temperature, but also play an important role in the defect-patching of substrate during the layer-forming process. The membrane surface was defect-free and smooth. Additionally, a relatively small pore size was observed. The nanoparticle doping sol-gel method showed a good potential for fabricating such integrated UF membranes, which are high performance interlayers for ceramic nanofiltration (NF) membranes.
Original language | English |
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Pages (from-to) | 12-15 |
Number of pages | 4 |
Journal | Colloids and Interface Science Communications |
Volume | 5 |
DOIs | |
State | Published - 1 Mar 2015 |
Keywords
- Interlayer
- Nanoparticle doping
- Nanoporous
- Sol-gel
- α-Alumina