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Han S.,Zhejiang Agriculture And forestry University | Sun Q.,Zhejiang Agriculture And forestry University | Sun Q.,Key Laboratory of Wood Science and TechnologyZhejiang Province | Zheng H.,Zhejiang Agriculture And forestry University | And 3 more authors.
Carbohydrate Polymers | Year: 2016

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. © 2015 Published by Elsevier Ltd.


Jin C.,Zhejiang Agriculture And forestry University | Jin C.,Key Laboratory of Wood Science and TechnologyZhejiang Province | Li J.,Zhejiang Agriculture And forestry University | Li J.,Key Laboratory of Wood Science and TechnologyZhejiang Province | And 5 more authors.
Journal of Alloys and Compounds | Year: 2015

Silver nanoparticles (Ag NPs) were successfully in situ deposited onto the surface of the bamboo timber through a simple silver mirror reaction. Scanning electron microscopy (SEM) images showed that the surface of the bamboo timber was densely covered with the uniform Ag NPs, which made the intrinsic insulating bamboo timber conductive. With further modification by fluoroalkylsilane (FAS), the Ag NPs-covered bamboo timber showed superhydrophobicity with the water contact angle (WCA) of 155°. Simultaneously, the modified bamboo timber displayed a durable and robust superhydrophobic property even under corrosive solutions including acidic, alkali and NaCl solutions with different molar concentrations. Especially in harsh conditions of boiling water or intense water stirring, the modified bamboo timber remained superhydrophobicity and high conductivity. © 2015 Elsevier B.V. All rights reserved.

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