Aerogels are porous, low density (0.8–0.001 g cm −3 ) solid materials with a high specifi c surface area; they have been recognized as promising materials for a plethora of applications, such as transparent thermal or acoustic insulation, membrane separation, lightweight construction, supported catalysis, superabsorbency, and water purifi cation. [ 1–10 ] Advanced mateAmbient-Dried Cellulose Na...