Flexible dual-Janus porous membrane for underwater gas bubbles anti-buoyancy unidirectional transportation

作     者：Shuang Ben Han Ma Rui Liu Yuzhen Ning Zhihong Zhao Xudong Zhang Qiang Li Kesong Liu 

作者机构：School of Materials Science and EngineeringShenyang Ligong UniversityShenyang 110159China Tianmushan LaboratoryHangzhou 310023China School of Equipment EngineeringShenyang Ligong UniversityShenyang 110159China Key Laboratory of Bio-Inspired Smart Interfacial Science and TechnologySchool of ChemistryBeihang UniversityBeijing 100191China School of Mechanical Engineering and AutomationBeihang UniversityBeijing 100191China 

出 版 物：《Science China Chemistry》 (中国科学(化学英文版))

年 卷 期：2025年第68卷第3期

页      面：881-890页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (22105014,21871020,52303143) the China Postdoctoral Science Foundation (2020M680296,2022T150035,2021TQ0023) the High-level Talent Project of Shenyang Ligong University the Special fund of Basic Scientific Research Expenses for Undergraduate Universities in Liaoning Province (LJ212410144077,LJ212410144072) the Beijing Young Talent Support Program the 111 Project the Fundamental Research Funds for the Central Universities 

主　　题：air diode anti-buoyancy unidirectional penetration without additional force dual-Janus membranes wettability gradient structural gradient 

摘      要：Controllable transportation of bubbles in surfactant or aqueous is very important in daily chemical products,food fermentation,mineral flotation and other ***,bubbles are mainly dominated by buoyancy and move upward in solution,which makes the manipulation of bubbles *** some progress has been made in controlling underwater bubbles,achieving continuous transportation and collection of underwater bubbles without relying on external forces is still a great *** this end,we bionically designed a flexible polydimethylsiloxane(PDMS)porous surface with dual-Janus ***,a porous PDMS membrane integrating structural gradient and wettability gradient realizes the underwater anti-buoyancy unidirectional transportation of bubbles without external force input,and possesses the capability of underwater gas anti-buoyancy transportation and *** work provides inspiration and direction for the development and design of underwater gas transportation and storage devices and provides innovative thinking for the implementation of seabed carbon dioxide storage technology.