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A flame-retardant post-synthetically functionalized COF sponge as absorbent for spilled oil recovery
- Source :
- Journal of Materials Science.
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Frequent oil spills pose severe damages to the marine ecosystems and result in hazardous fires when the spilled oil is ignited. Developing high-performance, flame-retardant absorbent materials for large-scale water treatment is therefore urgently needed. Herein, we report an efficient post-synthetic silylation process to achieve a porous covalent-organic framework (COF), denoted as [CF3] − COF. The absorption capacity of oils and organic solvents in [CF3] − COF was explored by experimental measurements with the absorption mechanism illuminated by molecular simulations. The prepared [CF3] − COF powders were further loaded into melamine sponge to yield a highly hydrophobic absorbent denoted as [CF3] − COF@sponge, which was demonstrated to effectively remove oils/organic solvents with outstanding stability and excellent flame retardancy. Moreover, an oil-collecting apparatus was designed to continuously separate oils/organic solvents from water. The rapid recovery of oils/organic solvents from water using this device proves the great promise of [CF3] − COF@sponge in water treatment.
- Subjects :
- Materials science
Silylation
020502 materials
Mechanical Engineering
02 engineering and technology
chemistry.chemical_compound
0205 materials engineering
chemistry
Chemical engineering
Mechanics of Materials
Hazardous waste
Absorption capacity
General Materials Science
Water treatment
Absorption (chemistry)
Melamine
Porosity
Fire retardant
Subjects
Details
- ISSN :
- 15734803 and 00222461
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Science
- Accession number :
- edsair.doi...........c8f08e48ef24b85e78b55ecae236278f
- Full Text :
- https://doi.org/10.1007/s10853-021-06006-w