Journal
MATERIALS LETTERS
Volume 254, Issue -, Pages 210-213Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2019.07.069
Keywords
Carbon materials; Composite materials; Carbon/g-C3N4 aerogel; Underwater superoleophobicity; Emulsion separation; Dye Absorption
Funding
- National Natural Science Foundation of China [51602132, 51875330]
- National Science Foundation of Shaanxi Province [2018JZ5003, 2019JZ-24]
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To realize simultaneous removal of oils and water-miscible dyes from emulsions, a versatile carbon/graphitic carbon nitride (g-C3N4) aerogel with high compressibility and underwater superoleophobicity was fabricated by in situ pyrolysis of urea on the surfaces of cotton fibers. The surfaces were densely covered with a layer of g-C3N4 nanoparticles, leading to the aerogel with underwater superoleophobicity towards oils and organic solvents. The aerogel can be applied for wastewater purification with high flux and removal efficiency only driven by gravity. Various emulsions, dye wastewaters, and even their mixtures can be effectively purified by the aerogel with excellent recyclability. The prepared carbon/g-C3N4 aerogel is believed to have great potential for practical wastewater purification. (C) 2019 Elsevier B.V. All rights reserved.
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