Superhydrophobic materials like carbon-coated sponges have been attracting attention due to their wide applicability in several industries. One of the main applications of such materials is the efficient removal of various water pollutants such as oil by adsorption. Herein, a flexible, porous, and hydrophilic melamine sponge was coated by superhydrophobic soot that was produced by incomplete combustion of the propane-butane mixture. Characterization of the soot and the sponge was performed via several methods such as spectroscopy, microscopy, and thermogravimetry. The product was tested in the petroleum oil removal process. The superhydrophobic sponge repelled water well and at the same time perfectly sorbed oil products. The wetting edge angle of soot coated sponge was found between 145 and 150°. The sponge showed an excellent adsorption capacity of 24 g oil/g for the selective separation of oil from water. The entrapped oil was released simply by squeezing the sponge for cyclic use and about 95.5 wt% of the oil was adsorbed and the soot-coated sponge still maintained this capacity after 19 cycles. Hence, this novel soot-coated hydrophobic sponge is considered a promising candidate for oil-polluted water treatment.

碳涂层海绵等超疏水材料因其在多个行业中的广泛适用性而备受关注。这种材料的主要应用之一是通过吸附有效去除各种水污染物，例如油类。在此，一种柔软、多孔且亲水的三聚氰胺海绵被丙烷-丁烷混合物不完全燃烧产生的超疏水烟灰覆盖。烟灰和海绵的表征通过多种方法进行，例如光谱学、显微镜和热重分析。该产品在石油除油过程中进行了测试。超疏水海绵很好地排斥水，同时完美地吸附油品。发现涂有烟灰的海绵的润湿边缘角在 145° 和 150° 之间。海绵对油水的选择性分离显示出 24 g oil/g 的优异吸附能力。只需挤压海绵即可释放截留的油以供循环使用，大约 95.5 wt% 的油被吸附，并且在 19 次循环后，涂有烟灰的海绵仍保持此容量。因此，这种新型的烟灰涂层疏水海绵被认为是油污染水处理的有希望的候选者。