Electrostatically responsive liquid gating system for controlled microbubble generation  

作　　者：Guochao Zeng Yunmao Zhang Zhongyi Fang Lejian Yu Yawen Zhang Shaojie Wang Xu Hou 

机构地区：[1]State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China [2]Department of Physics,Research Institute for Biomimetics and Soft Matter,Fujian Provincial Key Laboratory for Soft Functional Materials Research,Jiujiang Research Institute,College of Physical Science and Technology,Xiamen University,Xiamen 361005,China [3]Department of Joint Surgery and Sports Medicine,Zhongshan Hospital,Xiamen University,Xiamen 361004,China [4]Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM),Xiamen 361102,China

出　　处：《Industrial Chemistry & Materials》2024年第3期424-431,共8页工业化学与材料（英文）

基　　金：supported by the National Natural Science Foundation of China(52025132,52300138,21621091,22021001,and 22121001);the National Postdoctoral Program for Innovative Talents(BX20230198);the China Postdoctoral Science Foundation(2023M732945);the Higher Education Discipline Innovation Project(B17027,B16029);the Natural Science Foundation of Fujian Province of China(2022J02059,2023J05012);the Science and Technology Projects of Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM)(RD2022070601);the New Cornerstone Science Foundation through the XPLORER PRIZE.

摘　　要：Microbubbles have attracted considerable attention due to their distinctive properties,such as large surface area,inherent selfcompression,and exceptional mass transfer efficiency.These features render microbubbles valuable across a diverse range of industries,such as water treatment,mineral flotation,and the food industry.While several methods for microbubble generation exist,the gas–liquid membrane dispersion technique emerges as a reproducible and efficient alternative.Nevertheless,conventional approaches struggle to achieve active in situ control of bubble generation.In this study,we introduce an electrostatically responsive liquid gating system(ERLGS)designed for the active management of microbubble production.Utilizing electric fields and anionic surfactants,our system showcases the capability to dynamically regulate bubble size by manipulating the solid–liquid adsorption.Experiments confirm that this active control relies on the electrostatic adsorption and desorption of anionic surfactants,thereby regulating the interactions among the solid–liquid–gas interfaces.Our research elucidates the ERLGS's ability of precisely controlling the generation of bubbles in situ,enabling nearly one-order-of-magnitude change in bubble size,underscoring its applicability in various fields.

关 键 词：Liquid gating system Electrostatic response Anionic surfactants Adsorption and desorption MICROBUBBLES 

分 类 号：O64[理学—物理化学]