Three-dimensional graphene aerogel materials used for treatment of oily wastewater with sophisticated composition remains a challenge due to volume shrinkage, resulting in single-function and low adsorption capacity. In this work, renewable Enteromorpha was introduced into the graphene aerogel via facile hydrothermal-freeze casting treatment, forming the compression, ultralight and amphiphilic adsorbent for oil spill cleanup and water pollution remediation. Meanwhile, further freeze casting avoids aerogel collapse for capillary tension during drying and produce more hierarchical pores. As for oil spill clean up, the Enteromorpha modified graphene aerogel (EGA) exhibits excellent adsorption capacity towards oil and organic solvents than pristine graphene aerogel (GA). Even after several cycles by compression and heat treatment, it still has a stable adsorption capacity for oil and organic solvents. The EGA also showed high ability to absorb water-soluble pollutants, such as dyes through hydrogen bonding and electrostatic reactions between dye molecules and aerogel. The facile strategy to fabricate the Enteromorpha-based amphiphilic EGA broadens the applications in water treatment through the high-value utilization of Enteromorpha.

由于体积收缩，用于功能复杂的含油废水的三维石墨烯气凝胶材料仍然是一个挑战，导致单功能和低吸附能力。在这项工作中，可再生的Enteromorpha通过便捷的水热冷冻浇铸处理引入石墨烯气凝胶中，形成压缩，超轻和两亲性吸附剂，用于溢油清理和水污染修复。同时，进一步的冷冻浇铸避免了干燥过程中气凝胶因毛细管张力而塌陷，并产生了更多的分层孔隙。对于溢油清理，Enteromorpha改性的石墨烯气凝胶（EGA）与原始石墨烯气凝胶（GA）相比，对油和有机溶剂表现出出色的吸附能力。即使经过几次压缩和热处理，它对油和有机溶剂仍然具有稳定的吸附能力。EGA还显示出通过氢键和染料分子与气凝胶之间的静电反应吸收水溶性污染物（如染料）的能力。通过基于肠morph的高价值利用，制造基于肠morph的两亲性EGA的简便策略扩大了在水处理中的应用。