高效回收水面浮油的改性海绵制备与应用

The preparation and application of modified sponge for efficient recovery of floating oil from water surface

通过石墨烯改性聚氨酯海绵制备石墨烯-聚氨酯海绵(GO-PUA)并对其进行了水接触角、FT-IR、XPS、SEM和吸附性能测试。结果表明,GO-PUA具有良好的可压缩性、疏水性和浮油吸附能力,重复吸附-机械挤压过程200次后,其吸附容量没有变化,吸附油回收率达到92.7%。因此,通过GO-PUA高效回收水中浮油是可行的。

Polyurethane-graphene composite aerogel(GO-PUA) was made by introducing graphene to modify polyurethane sponge and characterized by water contact angle, FT-IR, XPS, SEM and adsorption ability. The result shows that GO-PUA had excellent compressibility, hydrophobicity and oil adsorption ability. Its adsorption capacity had not changed after repeating adsorption-extrusion processes 200 times. The recovery rate of adsorbed oil was 92.7% in each cycle. Therefore, it is feasible to efficiently recover oil spill from water through GO-PUA.