Superhydrophobic-superoleophilic heptafluorodecyl triethoxysilane/graphitic carbon spheres Co-modified porous monolith for water/oil separation
Source abstract
Abstract
Abstract Water/oil separation has been a flourishing research focus due to severe oil-spill accidents. The current work reports on preparation, characterization and water/oil separation performance of heptafluorodecyl triethoxysilane (FAS) and graphitic carbon spheres (GCS) co-modified mullite porous ceramic (FAS/GCS-MC) with superhydrophobic and superoleophilic characters. The water contact angle of FAS/GCS-MC was determined as about 161°. The continuous water/oil separation rates for paraffin, vegetable and vacuum pump oils were 3.4 × 104 g m−2 min−1, 2.2 × 104 g m−2 min−1 and 1.3 × 104 g m−2 min−1, respectively; even after 10 cycles, the separation rates remained almost unchanged in high selectivity (above 95%). The as-prepared FAS/GCS-MC was resistant to the temperature change and acid/base erosion, and showed stable superhydrophobicity and separation efficiency. In addition, the separation rate after applied a voltage to FAS/GCS-MC could be obviously enhanced by a self-heating process.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Surface Modification and Superhydrophobicity · Advanced Sensor and Energy Harvesting Materials · Solar-Powered Water Purification Methods
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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