| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 624413 | Desalination | 2011 | 4 Pages |
Self-supporting bucky-papers membranes were processed from chemical vapour deposition grown carbon nanotubes and coated with a thin layer of poly(tetra-fluoro-ethylene) (PTFE) to enhance their hydrophobicity and improve their mechanical stability over time, without drastically changing their average pore size and porosity. Contact angles and bubble point pressure were respectively increased by 23% and 28%. After coating the membranes were tested in a direct contact membrane distillation setup at various feed temperatures with 35 g/L NaCl feed solution and coated samples exhibited improved lifespan and water vapour permeability at salt rejection higher than 99%. The bucky-paper membranes were also compared with commercial PTFE membranes of similar properties.
Research Highlights► PTFE/carbon nanotube bucky-papers composites were fabricated by sputtering PTFE on top of a performed self-supporting bucky-paper. ► The samples were characterized and the membrane permeability performance tested in a direct contact membrane distillation rig.
