am9b17052_si_004.avi (8.58 MB)
Download fileOne-Step Transformation of Metal Meshes to Robust Superhydrophobic and Superoleophilic Meshes for Highly Efficient Oil Spill Cleanup and Oil/Water Separation
media
posted on 20.12.2019, 03:29 authored by Chao Fu, Lin Gu, Zhixiang Zeng, Qunji XuePhytic acid (PA), which is a natural and innoxious plant
constituent,
can strongly adsorb on the metal surface because of its six phosphate
groups. In this work, based on the chelating properties of PA and
the reaction between PA and hydrolyzable vinyltriethoxysilane (VTES),
we developed a novel and facial strategy to generate hierarchical-layer
nanospheres on the metal mesh surface and fabricated robust superhydrophobic
and superoleophilic miniature metal mesh ships. Because of their superwetting
properties, the modified meshes could easily remove and recycle the
oil spills from the water surface (>90% collection efficiency),
and
have high oil/water separation capacity (>96%). The excellent stability,
corrosion resistance, and robust mechanical durability endow the modified
mesh ships with more advantages in a marine environment. We envision
that these superhydrophobic meshes modified with PA and VTES are sustainable,
environmentally friendly, and easy to scale up and hence display great
potential in practical application.
History
Usage metrics
Read the peer-reviewed publication
Categories
Keywords
marine environmentmetal mesh shipsoil spillschelating propertiesMetal Mesheshydrolyzable vinyltriethoxysilaneSuperoleophilic MeshesPAmetal surfaceRobust Superhydrophobiccorrosion resistancehierarchical-layer nanospheressuperhydrophobic meshesmetal mesh surfaceEfficient Oil Spill Cleanupinnoxious plant constituentsuperwetting propertiesVTESmesh shipsphosphate groupsOne-Step Transformation