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Cotton aerogels and cotton-cellulose aerogels from environmental waste for oil spillage cleanup.

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Bibliographic Details
Title: Cotton aerogels and cotton-cellulose aerogels from environmental waste for oil spillage cleanup.
Authors: Cheng, Hanlin1, Gu, Bowen1, Pennefather, Mark P.1, Nguyen, Thanh X.1, Phan-Thien, Nhan1, Duong, Hai M.1 mpedhm@nus.edu.sg
Source: Materials & Design. Sep2017, Vol. 130, p452-458. 7p.
Subjects: Aerogels, Fabrication (Manufacturing), Polyamide fibers, Ceramic materials, Pollution control industry
Abstract: For the first time, successful fabrication of the cotton aerogels and cotton-cellulose aerogels is achieved using recycled fibers from environmental waste for oil absorption. The pure cotton and cotton-cellulose aerogels are obtained using a cost-effective mixing-blending method with polyamide-epichlorohydrin as strengthening additives. The obtained aerogels are silanized using methyltrimethoxysilane via a facile chemical vapor deposition to endow aerogels with hydrophobic surface. Effects of fiber concentrations and cotton-to-cellulose mass ratio on oil absorption performance in various solvents are also investigated. The cotton aerogel with an initial concentration of 0.25 wt% presents the highest oil absorption capacity over 100 g g − 1 . Besides, the cotton/cellulose aerogels also demonstrate good absorption capacity in different pollutant organics. The absorption kinetics of the aerogels with different cotton concentrations are also investigated using pseudo first-order model. Both equilibrium absorption and absorption kinetics demonstrate cotton/cellulose aerogels as promising materials for oil absorption and environmental pollution treatment. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:For the first time, successful fabrication of the cotton aerogels and cotton-cellulose aerogels is achieved using recycled fibers from environmental waste for oil absorption. The pure cotton and cotton-cellulose aerogels are obtained using a cost-effective mixing-blending method with polyamide-epichlorohydrin as strengthening additives. The obtained aerogels are silanized using methyltrimethoxysilane via a facile chemical vapor deposition to endow aerogels with hydrophobic surface. Effects of fiber concentrations and cotton-to-cellulose mass ratio on oil absorption performance in various solvents are also investigated. The cotton aerogel with an initial concentration of 0.25 wt% presents the highest oil absorption capacity over 100 g g − 1 . Besides, the cotton/cellulose aerogels also demonstrate good absorption capacity in different pollutant organics. The absorption kinetics of the aerogels with different cotton concentrations are also investigated using pseudo first-order model. Both equilibrium absorption and absorption kinetics demonstrate cotton/cellulose aerogels as promising materials for oil absorption and environmental pollution treatment. [ABSTRACT FROM AUTHOR]
ISSN:02641275
DOI:10.1016/j.matdes.2017.05.082