Superhydrophilic polyvinylidene fluoride membrane with hierarchical surface structures fabricated via nanoimprint and nanoparticle grafting
Superhydrophilic polyvinylidene fluoride membrane with hierarchical surface structures fabricated via nanoimprint and nanoparticle grafting
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DOI：
10.1016/j.memsci.2020.118332
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发表时间：
2020-10-15
影响因子：
9.5
通讯作者：
Huang, Xia
中科院分区：
文献类型：
--
作者：
Ma, Zhibo;Liang, Shuai;Huang, Xia
膜分离技术的可持续发展面临着膜污染问题的严峻挑战。本文提出了一种将纳米压印技术与纳米粒子接枝技术相结合的方法制备聚偏氟乙烯薄膜。纳米压印工艺产生了具有交替凹凸结构的波浪状微尺度表面图案。随后用胺封端的纳米颗粒进行接枝过程进一步将图案修饰成分级结构的表面，这允许快速（
The sustainable development of membrane separation technology is facing the severe challenge of membrane fouling problem. This paper proposed a novel strategy that combined nanoimprint lithography and nanoparticle grafting technology to fabricate antifouling polyvinylidene fluoride membranes. The nanoimprint process brought about a wave-like micro-scaled surface pattern with alternate concave and convex structures. The subsequent grafting process with amine-terminated nanoparticles further decorated the pattern into a hierarchically structured surface, which allowed a rapid (