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题名: Superhydrophobic helix: controllable and directional bubble transport in an aqueous environment
作者: Yu, Cunming2; Zhu, Xuanbo3; Cao, Moyuan1; Yu, Cunlong3; Li, Kan3; Jiang, Lei3
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2016
卷: 4, 期:43, 页:16865-16870
收录类别: SCI
英文摘要: Manipulating air bubbles in an aqueous medium exhibits both scientific and technologic value in gas-collection, selective aeration, and pollutant disposal. Superhydrophobic substrates, known as underwater superaerophilic substrates, offer numerous opportunities to develop advanced gas controlling systems, arising from its strong affinity to air bubbles in water. Herein, we present a superhydrophobic helix that is able to achieve controllable and directional bubble delivery. In an aqueous environment, the bubble tends to stay on the summit of the helix structure and moves along with the helix rotation. The velocity of the bubble delivery can be facilely tuned in terms of the spacing length of the helix. Continuous bubble collection and delivery were realized by integrating the helix with a gas needle and anti-buoyancy transport of the air bubbles was demonstrated using a tilted superhydrophobic helix. Taking advantage of the bubble controllability, a bubble based micro-reaction of H-2 and O-2 was conducted depending on the special helix structure with two directionalities. This contribution should provide new ideas for the exploration of functional superwettability materials and promote the development of gas-involved multiphase systems.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35712
Appears in Collections:绿色印刷实验室_期刊论文

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作者单位: 1.Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, BNLMS, Key Lab Green Printing, Inst Chem, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Bioinspired Mat & Interfacial Sci, Beijing 100190, Peoples R China
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