期刊
APPLIED SURFACE SCIENCE
卷 509, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2019.144818
关键词
Graphene aerogel; Graphene oxide nanoribbon; Capillary-driven pump; Organic solvent absorption
类别
资金
- National Natural Science Foundation of China [U1703251, 21571152]
- Program for Tianshan Innovative Research Team of Xinjiang Uygur Autonomous Region [2018D14002]
- Scientific Research Program of the Higher Education Institution of Xinjiang, China [XJEDU2017A001]
- Opening Project of Xinjiang Key Laboratory of Advanced Functional Materials [2017D04014]
Inspired by capillary-driven pump existing in nature, a capillary-like hydrophobic GO/GONR-APTES composite aerogel (MGGNA) was creatively fabricated by crosslinking one-dimensional functional GONRs with three-dimensional graphene aerogel. The prepared MGGNA presented a very low density in the range of 2.32-4.11 mg cm(-3), high porosity (97.5-98.6%) and high surface area (45.1 m(2) g(-1)) as well as high compression and recoverability properties, recovering 96.6% when compressed to 90% strain in a dry environment. The adsorption of organic pollutants was carried by the capillary force through the capillary-like channels inside the MGGNA, and the super-absorption capacity for organic solvents was up to 447 g g(-1). The MGGNA exhibited excellent performance stability over repeated use in combustion and mechanical squeezing cycles. Meanwhile, the dynamic test illustrated the continuous and highly efficient in-situ oil/water separation. Such outstanding properties make the resulting MGGNA present the prospect of practical application in organic pollution cleanup.
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