then prepared nanofibrillated cellulose (NFC) aerogels
with high specific surface area (153–284 m2 g-1), high
porosity (93–99 %), and low density (14–105 mg cm-3) via
the multiple-stage solvent exchange technique followed by
freeze drying. Also, the NFC aerogels were used as templates
to combine with hydrophobic silanes [21], Fe3O4/Ag
[22], polypyrrole [23], and N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane
[24] for some advanced
applications including oil–water separation, catalyst,
antibacterial agent, CO2 capture from air, and electrochemical
devices.