Green and facile fabrication of carbon aerogels from cellulose-based waste newspaper for solving organic pollution. (20th January 2016)

• Record Type: Journal Article
• Authors: Han, Shenjie; Sun, Qingfeng; Zheng, Huanhuan; Li, Jingpeng; Jin, Chunde
• Is Part Of: Carbohydrate polymers. Volume 136(2016)
• Page Start: 95
• Page End: 100
• Publication Date: 2016-01-20
• Subjects: Waste biomass -- Carbon aerogel -- Hydrophobicity -- Absorption -- Recyclability; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2015.09.024
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: Carbon aerogels were successfully fabricated from waste newspaper without generation of any additional pollution. The prepared carbon aerogels exhibited the high sorption capacity of 29–51 times its own weight. The carbon aerogels can be recycled and repeatable used via s simple method of squeezing, combustion, or distillation. This paper provides a green and facile way to fabricate absorbent materials from abundantly industrial materials. Abstract: Carbon-based aerogel fabricated from waste biomass is a potential absorbent material for solving organic pollution. Herein, the lightweight, hydrophobic and porous carbon aerogels (CAs) have been synthesized through freezing–drying and post-pyrolysis by using waste newspaper as the only raw materials. The as-prepared CAs exhibited a low density of 18.5 mg cm −3 and excellent hydrophobicity with a water contact angle of 132° and selective absorption for organic reagents. The absorption capacity of CA for organic compounds can be 29–51 times its own weight. Moreover, three methods (e.g., squeezing, combustion, and distillation) can be employed to recycle CA and harvest organic pollutants. Combined with waste biomass as raw materials, green and facile fabrication process, excellent hydrophobicity and oleophilicity, CA used as an absorbent material has great potential in application of organic pollutant solvents absorption and environmental protection.