The removal of oil spills or organic contaminants from water surface is of great importance for environmental protection. A major challenge is the fast placement and collection of the absorbent materials with high separation selectivity, good stability, and excellent recyclability. In this work, we report a novel environmentally friendly, cost-effective, easy production, fast collection and good recyclability, superhydrophobic adsorbent (PPCA@PFTS), which was obtained via the modification of pomelo peel biomass carbonaceous aerogel (PPCA) with 1H,1H,2H,2H-perfluorooctyl-trimethoxysilane (PFTS). Scanning electron microscopy image shows that PPCA@PFTS possesses a 3D cross-staggered structure with large diameter tunnels as well as numerous mesopores, which provide a possibility for its oil absorption characteristics. The maximum sorption capacities of PPCA@PFTS for soybean oil were about 5.8 g/g. PPCA@PFTS shows good durability with maintained effectiveness up to 30 regeneration cycles tested. Moreover, the adsorbed oil can be collected quickly. Therefore, we believe that a careful design of the pomelo peel biomass carbonaceous aerogel might further improve the oil absorption properties of this kind of materials. Importantly, our results suggest a facile and efficient material that might have practical applications in the cleanup of oil spills and the removal of organic pollutants on water surface.

从水面清除溢油或有机污染物对环境保护非常重要。一个主要的挑战是快速放置和收集具有高分离选择性、良好稳定性和优异可回收性的吸收材料。在这项工作中，我们报道了一种新型的环保、成本效益高、生产容易、收集快、可回收性好的超疏水吸附剂（PPCA@PFTS），它是通过用 1 H改性柚皮生物质碳气凝胶（PPCA）获得的。,1 H ,2 H ,2 H-全氟辛基-三甲氧基硅烷 (PFTS)。扫描电镜图像表明，PPCA@PFTS 具有大直径隧道和众多介孔的 3D 交叉交错结构，这为其吸油特性提供了可能。PPCA@PFTS 对豆油的最大吸附容量约为 5.8 g/g。PPCA@PFTS 显示出良好的耐用性，并在高达 30 次再生循环测试中保持有效性。此外，可以快速收集吸附的油。因此，我们认为柚皮生物质碳质气凝胶的精心设计可能会进一步提高此类材料的吸油性能。重要的是，我们的研究结果表明，一种简便高效的材料可能在清理溢油和去除水面上的有机污染物方面具有实际应用。