期刊
MATERIALS TODAY
卷 59, 期 -, 页码 46-55出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mattod.2022.08.001
关键词
Hierarchical aerogel; Graphene; Carbon-fiber; Self-assembly; Classical molecular dynamics; Desalination; Water purification
资金
- Princeton Center for Complex Materials (PCCM) Postdoctoral Fellowship
- Princeton Center for Complex Materials (PCCM)
- National Science Foundation (NSF)-MRSEC program [DMR2011750]
The integration of 2D graphitic carbon with 1D carbon nanofiber allows for the development of an ultralightweight G-CF aerogel with a hierarchical structure, which exhibits low density and high surface area and shows excellent water purification performance.
The integration of 2D-graphitic carbon (G) with 1D-carbon nanofiber (CF) allows for the unique properties of 2D graphitic carbon to be combined with the low densities, mechanical performance, and high surface area required for applications across the energy and sustainability landscape. Through a combination of experiments and numerical modeling, we demonstrate the transformation of standard egg-white (EW) proteins into an ultralightweight G-CF aerogel with a multiscale structure. The resulting covalently-bonded hierarchical structure, derived from the complex underlying protein configuration, exhibits a density that is two orders of magnitude lower than existing state-of-the-art materials. We apply this material to the challenges of desalination and water purification, notably demonstrating that the G-CF aerogel significantly improves upon existing materials, capturing 98.2% of ionic impurities and 99.9% of nano/microplastic contamination from seawater.
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