材料科学
氮化硼
三聚氰胺
阻燃剂
多孔性
涂层
图层(电子)
微型多孔材料
三聚氰胺树脂
化学工程
制作
复合材料
纳米技术
医学
替代医学
病理
工程类
作者
Dan Liú,Mingwen Zhang,He Li,Ying Chen,Weiwei Lei
标识
DOI:10.1002/admi.201700392
摘要
Cleanup of oil spills and industrial discharge of organic solvents is a global challenge. However, development of the ideal materials for water remediation with a high separation efficiency and low risk of fire is still rather sparse because the material needs to be superhydrophobic/superoleophilic and also flame‐retardant. Here, a novel coating material of porous boron nitride nanosheets (BNNSs) and a layer‐by‐layer assembly technology for tailoring inexpensive cotton fabric and melamine sponge with these desired properties are reported. The BNNS‐coated cotton fabric and melamine sponge exhibit high oil/water separation efficiency, selective absorption capacity of oil and organic solvents, and excellent recyclability. Furthermore, the coated materials show an efficient flame‐retardant effect which completely stops melamine sponge melt dripping upon exposure to the direct flame from a butane blowtorch within 52 s. The integrated advantages of the high porosity, low water adhesion, compressibility, strong fire‐resistance, simple operation, and commercial availability enable the porous BNNS‐coated cotton fabric and melamine sponge to satisfy various practical oil/water separation requirements.
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