Stable superhydrophobic and superoleophilic silica coated polyurethane sponges for the continuous capture and removal of oils from the water surface
作者： Jian Li , Dianming Li , Wenfang Hu , Jianping Li , Yaoxia Yang
DOI: 10.1039/C5NJ01565K
关键词: Chemistry 、 Pollutant 、 Sponge 、 Polyurethane 、 High absorption 、 Chemical engineering 、 Organic chemistry 、 Oily wastewater 、 Oil spill
摘要: The removal of oil and organic pollutants from water is highly desired due to the frequent spill accidents, as well increase industrial oily wastewater. In this work, we demonstrate a simple method for collection oils solvents surfaces based on hydrophobic SiO2 coated polyurethane sponges (SiO2-PU-sponge) that were fabricated by facile solution-deposition process. SiO2-PU-sponge could quickly selectively absorb various kinds up 55.8 times its own weight. addition, superhydrophobic sponge retains high absorption capacity even under harsh conditions, such temperatures corrosive solutions. Furthermore, connected with vacuum system remove great amount – 32000 Such an effective approach large-scale capture in future.
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