Superhydrophobic melamine sponge prepared by radiation-induced grafting technology for efficient oil-water separation  

作　　者：Ying Sun Wen-Rui Wang Dan-Yi Li Si-Yi Xu Lin Lin Man-Li Lu Kai Fan Chen-Yang Xing Lin-Fan Li Ji-Hao Li 

机构地区：[1]Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]School of Architecture and Materials,Chongqing College of Electronic Engineering,Chongqing 401331,China [4]Center for Stretchable Electronics and NanoSensors,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education,College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,China

出　　处：《Nuclear Science and Techniques》2024年第9期103-114,共12页核技术（英文）

摘　　要：This paper presents a superhydrophobic melamine(ME)sponge(ME-g-PLMA)prepared via high-energy radiation-induced in situ covalent grafting of long-alkyl-chain dodecyl methacrylate(LMA)onto an ME sponge for efficient oil–water separation.The obtained ME-g-PLMA sponge had an excellent pore structure with superhydrophobic(water contact angle of 154°)and superoleophilic properties.It can absorb various types of oils up to 66–168 times its mass.The ME-g-PLMA sponge can continuously separate oil slicks in water by connecting a pump or separating oil underwater with a gravity-driven device.In addition,it maintained its highly hydrophobic properties even after long-term immersion in different corrosive solutions and repeated oil adsorption.The modified ME-g-PLMA sponge exhibited excellent separation properties and potential for oil spill cleanup.

关 键 词：Radiation-induced graft polymerization Oil–water separation SPONGE SUPERHYDROPHOBIC 

分 类 号：X74[环境科学与工程—环境工程] X55