The removal of various oils, petroleum products and organic solvents from water has a great importance for environmental protection. In this study, highly hydrophobic and superoleophilic fluoro organothiol-coated carbonized melamine sponge/rGO composite absorbent material (CMS/rGO/PFDT) material was prepared as a new absorbent for the cleanup of oil spills and selective separation of oil-water mixtures. The results of contact angle, scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and Raman measurements proved that the preparation of new absorbent material was successfully performed. CMS/rGO/PFDT displayed excellent hydrophobicity with a high-water contact angle of 143.2°. and superoleophilicity with an oil-contact angle of 0°. This absorbent was unsinkable in water and could absorb the hydrophobic organic contaminants up to 55 times of its own weight. CMS/rGO/PFDT could effectively and selectively absorb the oily substances from olive oil-water and gasoline-water emulsions and achieved the continuous oil-water separation with the assistance of a vacuum pump. The developed CMS/rGO/PFDT material may be a potential absorbent in the absorptive removal of oily substances and organic solvents from oily wastewater and in the separation of oil-water mixture.

从水中去除各种油，石油产品和有机溶剂对环境保护具有重要意义。在这项研究中，制备了高度疏水和超亲油性的氟有机硫醇涂层碳化三聚氰胺海绵/ rGO复合吸收材料（CMS / rGO / PFDT）材料，作为清理溢油和选择性分离油水混合物的新型吸收剂。接触角，扫描电子显微镜（SEM），X射线光电子能谱（XPS），X射线衍射（XRD）和拉曼测量的结果证明了新型吸收材料的制备成功。CMS / rGO / PFDT具有出色的疏水性，与水的接触角为143.2°。油接触角为0°时具有超亲油性。这种吸收剂在水中不沉，可以吸收高达自身重量55倍的疏水性有机污染物。CMS / rGO / PFDT可以有效地，选择性地吸收橄榄油-水和汽油-水乳液中的油性物质，并借助真空泵实现油水的连续分离。所开发的CMS / rGO / PFDT材料在从含油废水中吸收去除油性物质和有机溶剂以及分离油水混合物方面可能是潜在的吸收剂。