Abstract
For the first time, planar biomimetic membranes consisting of Aquaporin Z (AqpZ) were fabricated upon cellulose acetate membrane substrate functionalized with methacrylate end groups. By vesicle rupture of triblock copolymer (ABA) vesicles and UV polymerization, a selective layer upon the substrate for nano-filtration (NF) was formed. The AqpZ:ABA ratio was varied from 1:200 to 1:50 and its effects on nanofiltration performance were elucidated. It is found that the NF membranes comprising AqpZ:ABA ratio of 1:50 can give an impressive water permeability of 34LMHbar -1 and NaCl rejection of more than 30%. This study opens up new possibilities of using AqpZ embedded biomimetic membranes for water purification with advantages that include high throughput with lesser energy consumption.
Original language | English (US) |
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Pages (from-to) | 27-33 |
Number of pages | 7 |
Journal | Journal of Membrane Science |
Volume | 407-408 |
DOIs | |
State | Published - Jul 15 2012 |
Externally published | Yes |
Keywords
- Aquaporin
- Biomimetic
- Nanofiltration
- Vesicle rupture
- Water purification
ASJC Scopus subject areas
- Biochemistry
- General Materials Science
- Physical and Theoretical Chemistry
- Filtration and Separation