聚二甲基硅氧烷
材料科学
溢出
化学工程
吸水率
多孔性
吸收(声学)
吸收能力
石油泄漏
复合材料
废物管理
环境工程
环境科学
工程类
作者
Yangxin Jin,Peng Jiang,Qingping Ke,Feihuan Cheng,Yinshengnan Zhu,Yixiang Zhang
标识
DOI:10.1016/j.jhazmat.2015.07.002
摘要
Developing functional porous materials with highly efficient oil–water separation ability are of great importance due to the global scale of severe water pollution arising from oil spillage and chemical leakage. A solution immersion process was used to fabricate polydimethylsiloxane (PDMS)-coated cotton, which exhibited superhydrophobic and superoleophilic properties. The water contact angle of ∼157° and mass of ∼1.49 g were retained after 1000 compression cycles, indicating that the PDMS was strongly attached to the cotton fibres. The PDMS-coated cotton absorbed various oils and organic solvents with high selectivity, high absorption capacity (up to 7080 wt.%), and good recyclability (exceeding 500 cycles). Notably, the loading capacity of the PDMS-coated cotton against water exhibited a similar trend to its oil absorption capacity. These findings will further the application of superhydrophobic and superoleophilic porous materials in oil/water separation.
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