Synthesis of magnetic, durable and superhydrophobic carbon sponges for oil/water separation

被引:64
作者
Wang, Ni [1 ]
Deng, Ziwei [1 ]
机构
[1] Shaanxi Normal Univ, Shaanxi Engn Lab Adv Energy Technol, Shaanxi Key Lab Adv Energy Devices, Minist Educ,Sch Mat Sci & Engn,Key Lab Appl Surfa, Xian 710119, Shaanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
Carbon sponge; Superhydrophobicity; Oil/water separation; Magnetic; Hierarchical architecture; SELECTIVE OIL-ABSORPTION; EFFICIENT SEPARATION; SPILL; FOAM; MICROSPHERES; GRAPHENE; REMOVAL; CLEANUP; MUSSEL;
D O I
10.1016/j.materresbull.2019.03.007
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The clean-up of oil spills is a worldwide challenge for the prevention of serious environmental pollution. Therefore, it is imperative to develop materials for oil-spill cleanup that have high absorption/separation capacity, good selectivity, controlled collection and easy recyclability. Here, we present a facile and low-cost approach for fabricating magnetic, durable, and superhydrophobic carbon sponges. The resultant carbon sponges feature fast magnetic response, excellent superhydrophobicity/superoleophilicity, high chemical resistance, environmental stability and mechanical durability, as well as high oil/water separation efficiency and oil absorbency. More importantly, given the magnetically controllable property endowed by magnetic particles to superhydrophobic carbon sponges, which act as magnetically controlled "smart absorbents", the carbon sponges can therefore controllably and selectively adsorb oils from oil-water mixtures. Thus, our strategy may open up a new avenue for developing magnetic responsive intelligent oil sorbent materials suitable for practical applications in the fields of water remediation, oil spill clean-up and oil recovery.
引用
收藏
页码:19 / 26
页数:8
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