Superhydrophobic/superoleophilic modified melamine sponge for oil/ water separation
Superhydrophobic/superoleophilic modified melamine sponge for oil/ water separation
复制标题
油水分离用超疏水/超亲油改性三聚氰胺海绵
DOI：
10.1016/j.ceramint.2022.12.001
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发表时间：
2022
影响因子：
5.2
通讯作者：
Lihao Liu
中科院分区：
文献类型：
--
作者：
Mengmeng Yang;Zhaofeng Chen;Lixia Yang;Yang Ding;Manna Li;Qiong Wu;Tianlong Liu;Lihao Liu
本文研究了一种环保、超疏水、耐用的改性三聚氰胺海绵。通过简单的两步浸渍法制作。通过这种策略，活性炭（AC）颗粒和。用聚二甲基硅氧烷（PDMS）将还原氧化石墨烯（rGO）固定在三聚氰胺海绵骨架上。胶合形成MS/rGO/AC/PDMS海绵，具有多级孔隙结构。水接触角（WCA）结果表明，制备的海绵具有优异的防水性，最高可达164◦。被应用于该领域。在油水分离中，MS/rGO/AC/PDMS表现出优异的油水选择性，吸油能力较高。可达120 g/g，分离效率达99.85%以上。值得注意的是，在复杂的环境下，如。经酸碱、疲劳和磨损后，所得海绵能保持原有性能，并与水接触。角度超过154°。此外，它具有良好的机械稳定性，可以连续重复使用和回收，是一种潜在的实际应用材料。
In this work, an environmentally friendly, superhydrophobic and durable modified melamine sponge was .fabricated through a simple two-step dipping method. Through this strategy, the active carbon (AC) particles and .reduced graphene oxide (rGO) were fixed on the melamine sponge skeleton with polydimethylsiloxane (PDMS) .glue to form MS/rGO/AC/PDMS sponge, which has a multi-stage pore structure. Water contact angle (WCA) .revealed that the as-prepared sponge possessed excellent water repellency up to 164◦. Being applied in the field .of oil/water separation, MS/rGO/AC/PDMS exhibited excellent oil-water selectivity, high oil sorption ability up .to 120 g/g, and separation efficiency of over 99.85%. It is worth noting that under complex environments such as .acid-base, fatigue and abrasion, the obtained sponge can maintain original properties, and the water contact .angle exceeds 154◦. In addition, it has good mechanical stability which can be reused and recovered continuously, making it a potential material for practical applications.