海绵
吸附
润湿
材料科学
废水
化学工程
制浆造纸工业
化学
有机化学
复合材料
环境科学
环境工程
植物
生物
工程类
作者
Bin Du,Bin Li,Kenan Yang,Yi Chen,Rubai Luo,Shisheng Zhou,Huailin Li
标识
DOI:10.1088/2053-1591/acd5ad
摘要
Abstract In recent years, the leakage of crude oil and the discharge of oily wastewater in industrial production have seriously endangered the water environment and ecological safety. Adsorbent materials with excellent oil-water separation performance play an important role in water purification. In this work, we employed a simple yet effective strategy to prepare highly compressible wood sponges. And with the prepared wood sponge as the substrate, the prepared pH-responsive copolymer was coated on the surface of the wood sponge by spraying method, and the pH-responsive superhydrophobic wood sponge was successfully prepared. The experimental results show that the wood sponge has excellent pH-responsive properties and can complete the transition of surface wettability between superhydrophobicity and hydrophilicity according to the change of pH value. The wood sponge has good oil adsorption capacity (12.72 g g −1 ), and reusability. Continuous oil-water separation can be carried out under the vacuum pump, and the oil-water separation efficiency in one separation cycle is above 92%. It has great application potential in the treatment of oily wastewater.
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