Developing efficient sorbent materials is of worldwide importance to protect the environment against frequent oil spills and chemical leakage accidents. A simple and low-cost process was adopted to prepare hydroxylated BN bonded with SiO₂ sol and then embed BN/SiO₂ on polyurethane (PU) foam(BN/SiO₂@PU) via dip-coating. BN/SiO₂@PU could float on water due to its hydrophobicity. Absorption tests were performed to test its performance using various organic solvents or oil. Comparing with BN/SiO₂ aerogel, BN@PU and SiO₂@PU, BN/SiO₂@PU had a high absorption rate and a high absorption capacity for both organic solvents and oil, and could absorb as much as 40 times its weight. It was also able to selectively absorb oil or organic solvents from an oil–water mixture with separation efficiency higher than 95% and had good recyclability of 20 absorption cycles even towards commercial waste oil. Furthermore, BN/SiO₂@PU with high temperature stability can be used under harsh condition. The performance of the prepared adsobent reported is competitive and superior to other reported materials, confirming its potential application in water treatment.

开发有效的吸附剂材料在全球范围内对于保护环境免受频繁的漏油和化学泄漏事故的影响至关重要。采用一种简单，低成本的方法制备了与SiO ₂溶胶结合的羟基化BN ，然后通过浸涂将BN / SiO ₂嵌入聚氨酯泡沫（BN / SiO ₂ @PU）中。BN / SiO ₂ @PU由于其疏水性而可能漂浮在水上。使用各种有机溶剂或油进行吸收测试以测试其性能。与BN / SiO ₂气凝胶，BN @ PU和SiO ₂ @ PU ，BN / SiO _2相比@PU对有机溶剂和油都有很高的吸收率和吸收能力，可以吸收40倍于其重量的重量。它还能够从油水混合物中选择性地吸收油或有机溶剂，分离效率高于95％，即使对于商业废油也具有20个吸收循环的良好可回收性。此外，可以在恶劣条件下使用具有高温稳定性的BN / SiO ₂ @PU。所制备的adobent报告的性能具有竞争力，并且优于其他报告的材料，证实了其在水处理中的潜在应用。