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

Materials & design, 2017-09, Vol.130, p.452-458 [Peer Reviewed Journal]

2017 Elsevier Ltd ;ISSN: 0264-1275 ;EISSN: 1873-4197 ;DOI: 10.1016/j.matdes.2017.05.082

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  • Title:
    Cotton aerogels and cotton-cellulose aerogels from environmental waste for oil spillage cleanup
  • Author: Cheng, Hanlin ; Gu, Bowen ; Pennefather, Mark P. ; Nguyen, Thanh X. ; Phan-Thien, Nhan ; Duong, Hai M.
  • Subjects: Aerogel ; Cellulose fibers ; Cotton fibers ; Environmental waste ; Oil absorption
  • Is Part Of: Materials & design, 2017-09, Vol.130, p.452-458
  • Description: 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 0.25wt% presents the highest oil absorption capacity over 100gg−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. Graphic abstract [Display omitted] •Cotton aerogel with absorption capacity over 100gg−1 was prepared through simple solution routine.•Silanized cotton and cotton/cellulose aerogel present good hydrophobicity.•Cotton/cellulose aerogels show remarkable absorption capacity in various contaminates.•Cellulose helps to improve absorption reversibility for the composite aerogels.
  • Publisher: Elsevier Ltd
  • Language: English
  • Identifier: ISSN: 0264-1275
    EISSN: 1873-4197
    DOI: 10.1016/j.matdes.2017.05.082
  • Source: DOAJ Directory of Open Access Journals
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