纳米气泡的同步辐射研究进展  

Recent developments in nanobubble research based on synchrotron radiation techniques

作　　者：周利民 王兴亚 张立娟 胡钧[2,3,4] ZHOU LiMin;WANG XingYa;ZHANG LiJuan;HU Jun(Shanghai Synchrotron Radiation Facility,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201204,China;Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China;Center for Interdisciplinary Research,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201800,China;Key Laboratory of Interfacial Physics and Technology,Chinese Academy of Sciences,Shanghai 201800,China)

机构地区：[1]中国科学院上海高等研究院,上海光源科学中心,上海201204 [2]中国科学院上海应用物理研究所,上海201800 [3]中国科学院上海高等研究院,基础交叉研究中心,上海201800 [4]中国科学院微观界面物理与探测重点实验室,上海201800

出　　处：《中国科学：物理学、力学、天文学》2021年第9期49-61,共13页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金项目(编号:11874379,U1532260,12005284);中国科学院前沿科学重点研究项目(编号:QYZDJ-SSW-SLH019)资助。

摘　　要：纳米气泡指溶液中或者固液界面上纳米尺度的气泡,按照Young-Laplace方程和扩散理论预测,此类小气泡应在数微秒内消失.但在过去20年中,有大量实验证据表明纳米气泡可以长期稳定的存在,这在基础研究中犹如"乌云"般存在.同时纳米气泡技术在环境修复、废水处理、矿物浮选、农业和养殖业等被视为是革命性的创新技术.同步辐射技术是探究物质微纳结构和电子结构的利器,为揭示纳米气泡的超常稳定机制及其生效机理提供了重要机遇.本文回顾了适用于纳米气泡体系的同步辐射技术原理以及近年来取得的重要进展,并展望了未来同步辐射技术在纳米气泡领域的深入应用.Nanobubbles are submicron gaseous domains dispersed in solutions or absorbed on solid-liquid interfaces.According to the predictions made on the basis of Young-Laplace equation and diffusion theory,such small bubbles should disappear within microseconds.However,over the past 20 years,many experimental results have demonstrated that the nanobubbles can survive and remain stable for hours.These nanobubbles,just as"the small puzzling dark clouds",remain a big challenge to the fundamental researches.Nanobubble-based technologies are considered a revolutionary innovation in various fields,including environmental remediation,wastewater treatment,mineral flotation,agriculture,and aquaculture,etc.As a powerful tool to probe the micro/nanostructures and electron structures of the tested samples,synchrotron radiation techniques offer a possibility of revealing the mysterious superstability of nanobubbles and the mechanism of their effects.This paper reviewed the principles of the synchrotron radiation techniques applied for detecting nanobubbles and focused on the recent advances.The perspectives and trends in synchrotron radiation techniques in the future studies of nanobubbles were also presented.

关 键 词：纳米气泡 X射线成像 X射线吸收谱 X射线发射谱 水科学 

分 类 号：O434.1[机械工程—光学工程]