Absorption is one of the most important methods for oil spill cleanup. An ideal absorbent is expected to possess advantages of low cost, green, high absorption capacity and excellent reusability. In this paper, a new kind of cellulose aerogel was successfully fabricated via cellulose oxidation, crosslinking, freeze drying and cold plasma modification. The obtained aerogel (water contact angle up to 152.8°) exhibited outstanding oil/water selectivity and high absorption capacity (13.77–28.20 g/g) for various oils and organic solvents. What's more, this kind of aerogel could be reused by simple compression. The absorption-desorption process could be repeated for at least 50 cycles. Through the kinetic analysis, it was found that the pseudo-second order model was more appropriate for the aerogel’s oil absorption process. Owing to its low cost, hydrophobicity, high absorption capacity and excellent reusability, this kind of aerogel is expected to be used in oils and organic solvents spill cleanup and oil/water separation field.

吸收是溢油清理的最重要方法之一。期望理想的吸收剂具有低成本，绿色，高吸收能力和优异的可重复使用性的优点。本文通过纤维素氧化，交联，冷冻干燥和冷等离子体改性成功地制备了一种新型的纤维素气凝胶。所获得的气凝胶（水接触角高达152.8°）表现出出色的油/水选择性和对各种油和有机溶剂的高吸收能力（13.77–28.20 g / g）。而且，这种气凝胶可以通过简单的压缩来重复使用。吸收-解吸过程可以重复至少50个循环。通过动力学分析，发现拟二级模型更适合于气凝胶的吸油过程。由于价格低廉，