Production of superhydrophobic sand for separation of water-oil mixtures
DOI:
https://doi.org/10.18321/cpc403Keywords:
һуdropһobiсitу, supеrһуdropһobiс sand, wetting аnglе, combustion, sorbent.Abstract
In this work, hydrophobic carbon layers on the surface of river sand were synthesized using propane as fuel using a single-stage flame method. When burning propane with a burner, nano/micro soot can be easily applied to the surface of the sand. The sand obtained by the single-stage method is superhydrophobic with a wetting angle of more than 140°. The created superhydrophobic sand covered with soot with hydrophobic properties was studied by physical and chemical methods, such as scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EMF). Due to the simplicity of the synthesis process and the possibility of largescale production, the created superhydrophobic sand@soot is a good candidate for separating oil and water in real systems. The hydrophobic properties of carbon deposits were quantified by measuring the contact angle of water droplets deposited on the surface of the carbon film. To study the wettability properties of hydrophobic carbon layers, a water drop test was performed. The resulting sand was used to separate oil from water.
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