以二硫化钼( MoS2)粉末为原料,采用超声辅助液相剥离法制备了MoS2纳米片,通过MoS2纳米片和聚二甲基硅氧烷( PDMS)依次修饰聚氨酯( PU)海绵,制备了疏水亲油性质的PU-MoS2吸油材料,并测试了其接触角和吸油性能。结果表明,所制备的PU-MoS2海绵有着优良的疏水亲油性能和较强的吸油能力。对不同的有机液体,PU-MoS2海绵分别能够吸取自身重量12~86倍的有机溶剂。尺寸较小MoS2纳米片修饰制备的PU-MoS2海绵具有较高的吸油能力。此外,PU-MoS2海绵在重复使用20次后仍能保持强的吸油能力,表明其可循环利用,具有良好的应用前景。
MoS2 nanosheets were prepared from MoS2 powders through ultrasonic liquid exfoliation method. Hydrophobic polyurethane ( PU ) sponges for oil absorption were fabricated by subsequent modification with MoS2 nanosheets and polydimethylsiloxane ( PDMS ) . The contact angle and oil absorbent properties of the obtained sponges were measured. The results indicate that PU-MoS2 sponge shows good hydrophobicity and oil absorption capacity. PU-MoS2 sponge has absorbent capacities of 12-86 times of their own weight for different organic solvent. The PU-MoS2 sponge obtained by coating with smaller size MoS2 nanosheets has relatively higher absorption capacity. Moreover, the absorption capacity of the PU-MoS2 sponge did not deteriorate after it was reused for 20 times, so the PU-MoS2 sponge has excellent recyclability for future application.
参考文献
[1] | Broje V;Keller AA.Improved mechanical oil spill recovery using an optimized geometry for the skimmer surface[J].Environmental Science & Technology: ES&T,200624(24):7914-7918. |
[2] | Elizabeth B. Kujawinski;Melissa C. Kido Soule;David L. Valentine.Fate of Dispersants Associated with the Deepwater Horizon Oil Spill[J].Environmental Science & Technology: ES&T,20114(4):1298-1306. |
[3] | Qing Zhu;Ying Chu;Zhikui Wang.Robust superhydrophobic polyurethane sponge as a highly reusable oil-absorption material[J].Journal of Materials Chemistry, A. Materials for energy and sustainability,201317(17):5386-5393. |
[4] | Calcagnile, P.;Fragouli, D.;Bayer, I.S.;Anyfantis, G.C.;Martiradonna, L.;Cozzoli, P.D.;Cingolani, R.;Athanassiou, A..Magnetically driven floating foams for the removal of oil contaminants from water[J].ACS nano,20126(6):5413-5419. |
[5] | Yue Liu;Junkui Ma;Tao Wu.Cost-Effective Reduced Graphene Oxide-Coated Polyurethane Sponge As a Highly Efficient and Reusable Oil-Absorbent[J].ACS applied materials & interfaces,201320(20):10018-10026. |
[6] | 刘俊;常梦洁;杜慧玲.高分散二硫化钼复合纳米纤维的制备及表征[J].人工晶体学报,2016(4):995-999. |
[7] | Xu, M.;Liang, T.;Shi, M.;Chen, H..Graphene-like two-dimensional materials[J].Chemical Reviews,20135(5):3766-3798. |
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