Abstract
Cellulose nanofibers (CNF) can be regarded as
biodegradable and biobased alternatives for synthetic
membrane materials. Carboxylic acid groups containing
TEMPO oxidized CNF is highly anionic and can be used e.g.
for scavenging of contaminants, such as cationic metal
ions from waste water. Water stable membranes were
prepared from TEMPO oxidized CNF with an addition of 10
w-% of poly(vinyl alcohol) (PVA). The water permeability
of the membrane is in the reverse osmosis membrane
region. Furthermore, a surface modification route in
order to attach a thermoresponsive
poly(N-isopropylacrylamide) group directly on
nanocellulosic (TEMPO-PVA materials and unmodified CNF
based materials) membrane surfaces was developed. Effects
of surface modification on the membranes structure and
properties were evaluated.
| Original language | English |
|---|---|
| Publication status | Published - 2014 |
| Event | 4th Dissemination workshop of the Nano4water cluster: Nanoenabled systems and membranes for water treatment - Stockholm, Sweden Duration: 23 Apr 2014 → 24 Apr 2014 Conference number: 4 |
Workshop
| Workshop | 4th Dissemination workshop of the Nano4water cluster |
|---|---|
| Country/Territory | Sweden |
| City | Stockholm |
| Period | 23/04/14 → 24/04/14 |