Robust construction of underwater superoleophobic CNTs/nanoparticles multifunctional hybrid membranes via interception effect for oily wastewater purification
writer：Luke Yan*, Gui Zhang, Lei Zhang*, Wei Zhang, Jincui Gu, Youju Huang, Jiawei Zhang, Tao Chen*
keywords：CNTs membrane, Underwater superoleophobic, Oil/water emulsion separation, Catalytic degradation, Catalytic nanoparticles
source：期刊
specific source：Journal of Membrane Science, 2019. 569(1): 32~40 (DOI: https://doi.org/10.1016/j.memsci.2018.09.060)
Issue time：2019年
A simple and robust strategy is suggested for fabricating multifunctional hybrid separation membrane loading with catalytic nanoparticles based on the interception effect of porous CNTs network membrane. CNTs functionalized covalently with hydrophilic polyacrylic acid brushes assemble into a superhydrophilic/underwater superoleophobic network structure, which displays thickness dependent porosity. This allows the CNTs membrane capture catalytic nanoparticles by simple filtration process and construct flexibly desired separation membrane. Not only effectively separate oil-in-water emulsion, the prepared CNTs hybrid membranes can also catalytically decompose different organic pollutants in water by conveniently altering catalytic nanoparticles in the membrane. This robust construction provides a convenient means to obtain multifunctional CNTs separation membrane, promoting the practical application of superwettable CNTs membrane in the treatment of complex oily wastewater.