Rising oil spills from contemporary industrial activities pose threats to local ecosystems. This study presents a novel approach, fabricating superhydrophobic polycaprolactone (PCL) 3D porous foam for oil–water separation using thermally induced nonsolvent-induced phase separation (TINIPS) and silica modification, achieving an impressive water contact angle of 151.56°. PCL foam exhibits remarkable versatility, proving effective in oil absorption on water surfaces and underwater, with an adsorption capacity reaching 9.32 times its weight. Additionally, film-like PCL foam emerges as a valuable tool for oil–water separation through filtration, maintaining a flux of 13.63 m³ m⁻² h⁻¹ even after 10 cycles. This research advances superhydrophobic materials, demonstrating practical applications in mitigating environmental challenges posed by oil spills.

中文翻译：

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通过相分离和二氧化硅改性制备超疏水聚己内酯泡沫用于油水分离

当代工业活动造成的石油泄漏不断增加，对当地生态系统构成威胁。这项研究提出了一种新颖的方法，利用热诱导非溶剂诱导相分离 (TINIPS) 和二氧化硅改性制造用于油水分离的超疏水聚己内酯 (PCL) 3D 多孔泡沫，实现了令人印象深刻的 151.56° 水接触角。 PCL泡沫表现出卓越的多功能性，在水面和水下均能有效吸油，吸附能力达到其重量的9.32倍。此外，薄膜状 PCL 泡沫成为通过过滤进行油水分离的有价值的工具，即使在 10 个循环后仍能保持 13.63 m ³ m ^-2 h ^-1的通量。这项研究推进了超疏水材料的发展，展示了在缓解石油泄漏造成的环境挑战方面的实际应用。