最近最好的2019中文,最好看免费中文,最好免费观看高清在线,中文字幕在线观看,中文字幕2019年最好看电视剧,最好看的免费观看高清视频,最好看的电影2019中文字幕,最好看的2019年中文视频,最好看的MV中文字幕国语电影,最好看的中文字幕国语电视剧,最好看的2018国语在线,最好看免费中文在线看电视剧网站

測量應(yīng)用案例-20220610

文獻(xiàn)名： Reproducible and fast preparation of superhydrophobic surfaces via an ultrasound-accelerated one-pot approach for oil collection

作者： Biyun Wang^a，Yanling Ma^a，Ni Wang^a，Juanli Wang^ac，Jing Luo^b，Bo Peng^d，Ziwei Deng^ab

^a Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710119, China

^b The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Lihu Street 1800, Wuxi 214122, China

^c Engineering Research Center of Historical Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710119, China

^d Department of Applied Physics, Aalto University, Espoo FI-00076, Finland

摘要：The currently available superhydrophobic coating techniques that utilize mussel-inspired polydopamine coating to construct hierarchical superhydrophobic structures require multiply procedures and are time-consuming processes. Here, we propose an ultrasound-accelerated strategy to various commercial sponges with hierarchically structured superhydrophobic surfaces by briefly submerging sponges into a slightly alkaline aqueous mixture comprising dopamine hydrochloride (DA) and dodecyltrimethoxysilane (DTMS) under ultrasound. The ultrasound is found significantly accelerate the hierarchical surface structures from PDA, while only minorly influences the hydrolysis of DTMS that hydrophobically modifies the surface of PDA. As a result, the hierarchical superhydrophobic surfaces are formed within 25 min. In addition, the superhydrophobicity of the surface can be recovered by repeating this ultrasound-assisted process, provided that the superhydrophobic feature is vanished or lost during their use in a harsh environment. These superhydrophobic sponges are superior materials for oil collection from water, in a durably robust, efficient and recyclable manner with multi-life span. This strategy presents a rather high efficient and time-saving process for constructing/recovering hierarchical superhydrophobic surfaces, which may be useful for the rapid engineering commercial materials with restorable superhydrophobic surfaces.

關(guān)鍵詞：Superhydrophobicity；Ultrasound；Polydopamine；Silane；Oil/water separation