Fabrication of Magnetically Inorganic/Organic Superhydrophobic Fabrics and Their Applications

作者：Lv, Lizhang; Zhao, Wenjie; Zhong, Ximing; Fu, Heqing^*

来源：ACS applied materials & interfaces, 2020, 12(40): 45296-45305.

DOI：10.1021/acsami.0c13229

• inorganic/organic superhydrophobic fabrics
• magnetic property
• self-cleaning
• oil/water separation
• flame retardancy

In order to solve the problem caused by oil spills and organic solvent contamination, novel magnetically inorganic/organic superhydrophobic fabrics are fabricated via a facile method. Cotton fabrics are immersed in a mixture of functionalized Co0.2Mg0.8Fe2O4 (FCMFO) nanoparticles, vinyl-terminated polydimethylsiloxane (VPDMS), trimethylolpropane triacrylate, and 2-hydroxy-2-methylpropiophenone before UV irradiation for 100 s to obtain the multifunctional superhydrophobic fabrics with magnetic property. The coated fabrics show excellent superhydrophobicity, and the water contact angle is 157.1 degrees when the mass ratio of FCMFO nanoparticles to VPDMS is 0.3. These superhydrophobic fabrics have high oil/water separation efficiency (98.7% for dichloromethane/water) and high oil flux (71,506 L.m(-2).h(-1) for dichloromethane/water). Even after 20 separation cycles, oil/water separation efficiency and oil flux maintain 96.4% and 64,012 L.m(-2).h(-1), respectively. Furthermore, the magnetic property of these superhydrophobic fabrics could be used in the separation of oil from water. Moreover, the superhydrophobic fabrics possess exceptional self-cleaning performance, mechanical durability, chemical stability, and flame retardancy. These multifunctional superhydrophobic fabrics are potential for wide applications.

• 单位
  仲恺农业工程学院