Excellent Fog-Droplets Collector via Integrative Janus Membrane and Conical Spine with Micro/Nanostructures

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Hu ZhouYongmei Zheng

Abstract

Inspired by a cactus spine and trichomes integrated fog collection system, a strategy is presented to design a micro/nanostructured conical spine and Janus membrane integrative system (MNCS+JM). In this strategy, the surface of conical spine can be covered with rough micro and nanostructure (MNCS), so that the tiny fog-droplets can be captured, coalesced, and transported. Janus membrane (JM) with inside hydrophobic surface and outside hydrophilic surface is further used to control the water collection in process of droplet transport when the Janus membrane is vertically placed with different positions on the MNCS, thus MNCS+JM propel the droplet continuously for transport-coalescence-transport in a circle of droplet transport and collection. It is demonstrated that a higher fog collection rate can be achieved effectively, which is attributed to a cooperation effect between the Laplace pressure in difference and the released surface energy in droplet coalescence, in addition to wettability force of superhydrophobic-hydrophilic difference in the Janus membrane. This strategy of MNCS+JM offers an insight into the surface of materials to control the droplet transport for water collection in efficiency, which is significant to be ex...Continue Reading

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Citations

Jan 7, 2019·The European Physical Journal. E, Soft Matter·Jianlin Liu, Shanpeng Li
Sep 18, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Zhen Chen, Zengzhi Zhang
Jul 26, 2019·Soft Matter·Youhua JiangKyoo-Chul Park
Jun 2, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Jianping TangDong Wu
Jul 15, 2021·ACS Applied Materials & Interfaces·Yutaka YamadaAkihiko Horibe
Dec 28, 2019·ACS Applied Materials & Interfaces·Xin LiYongmei Zheng
Dec 12, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Xuelian Gou, Zhiguang Guo
Oct 8, 2020·ACS Applied Materials & Interfaces·Jinghui LiYongmei Zheng
Feb 20, 2019·ACS Applied Materials & Interfaces·Yan XingYongmei Zheng
Nov 22, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Lieshuang ZhongHongbo Zeng
Nov 11, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Xing TangZhiguang Guo
Dec 17, 2021·ACS Applied Materials & Interfaces·Jiwang ChenHuanting Wang
Jan 4, 2022·ACS Applied Materials & Interfaces·Jie TangJifu Shi
Jan 26, 2022·ACS Applied Materials & Interfaces·Xiaoyan YuZhongjun Cheng

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