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Study on oil-water separation of superhydrophobic and self-cleaning fluorinated graphite modified stainless steel mesh

LEI Ran?WANG JiarouZHAO Song?WANG Zhi

£¨State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072 China£©

Abstract:?Epoxy resin and fluorinated graphite (FG) nanosheets were used to modify the surface of 200 mesh(75 mm), 300 mesh(50 mm) and 400 mesh(37.5 mm) stainless steel meshes to prepare fluorinated graphite modified steel meshes with superhydrophobic and self-cleaning properties. The mixture of hexane/water, dichloromethane/water, decane/water, toluene/water and diesel/water can be quickly separated by the FG modified steel mesh under its own gravity, and the separation efficiency is above 99.89%. At the same time, the fluorinated graphite modified stainless steel mesh also has good reusability and mechanical durability. After 100 cycles of recycling and 100 times of wear under the action of external force, it still maintains good superhydrophobic properties.
Keywords:?film£»surface£»fluorinated graphite£»superhydrophobic£»oil-water separation£»stability

ÒýÈëÎÄÖУº?À×È», Íõ¼ÎÈá, ÕÔËÌ, ÍõÖ¾. ³¬ÊèË®¡¢×ÔÇåÀí·ú»¯Çâ¸ß´¿Ê¯Ä«¸ÄÐÔ²ÄÁϲ»Ðâ¸ÖÍøµÄÓÍË®·ÖÀëÆ÷¿ÆѧÑо¿[J]. »¯¹¤Ñ§±¨, 2021, 72(2): 1191-1201?(LEI Ran, WANG Jiarou, ZHAO Song, WANG Zhi. Study on oil-water separation of superhydrophobic and self-cleaning fluorinated graphite modified stainless steel mesh[J]. CIESC Journal, 2021, 72(2): 1191-1201)

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