Creation of a hydrophobic sponge based on nanostructured soot
DOI:
https://doi.org/10.18321/cpc21(4)265-271Keywords:
synthesis, soot, hydrophobic sponge, contact angle, adsorption.Abstract
The carbon-coated hydrophobic sponge is widely used in a number of industries. One of the main such applications is the effective removal of various water pollutants, such as oil, through absorption. In this work, a flexible, porous, and hydrophilic melamine sponge is coated with soot, which has superhydrophobic properties, resulting from incomplete combustion of a propane-butane mixture. Samples of superhydrophobic soot and sponges with hydrophobic properties are examined using methods, such as, SEM, EDAX, BET. The created hydrophobic sponge does not absorb water, but at the same time absorbs oil products well. The wetting angle of the surface of the created sponge is in the range of 145-150º and, with selective separation of oil from water, shows the absorption of 24 g of oil per 1 g of sponge. As a result of research, it was found that a sponge coated with soot retains its sorption capacity after 20 cycles of operation, with the total amount of sorbed oil being about 95.5%.Thus, the results obtained demonstrate the effectiveness of using a melamine sponge coated with hydrophobic soot.
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