期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 445, 期 -, 页码 128-134出版社
ELSEVIER
DOI: 10.1016/j.Colsurfa.2014.01.015
关键词
Recycled cellulose aerogel; Oil spill; Water absorption; Thermal insulation; Water repellent
资金
- Singapore National Environment Agency-Environment Technology Research Program (7th RFP) [R-265-000-450-490]
A cost effective and scalable recipe for fabricating biodegradable cellulose aerogels from paper waste has been realized. The green aerogel is macroporous and has extremely low density and thermal conductivity: 0.04 g cm(-3) and 0.029-0.032 Wm(-1) K-1, respectively. It is highly absorbent, absorbing 18-20 times its weight in liquid. Up to 99.8% of the liquid is recovered simply by squeezing the aerogel. The fabrication can be optimized for absorbing polar (water) or non-polar liquids (oil). Coating the aerogel with methyltrimethoxysilane improves its hydrophobicity without affecting its absorbency. Mechanically, the aerogel is flexible yet strong making a wide range of applications possible. (C) 2014 Elsevier B.V. All rights reserved.
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