文献类型：期刊文献

英文题名：pH-Responsive smart non-woven fabrics (NWFs) with double switchable wettability between superhydrophilicity-superhydrophobicity-superhydrophilicity to oil/water separation

作者：Zhang, Zhibin[1];Yu, Hang[1];Guo, Jiahong[1];Bai, Zhiwei[1];Zhang, Shiping[1];Zhang, Yajuan[1];Wang, Jikui[1]

机构：[1]East China Univ Sci & Technol, Mat Sci & Engn, Shanghai, Peoples R China

年份：2019

卷号：43

期号：17

起止页码：6712

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000468631600032)】；

语种：英文

摘要：pH-Responsive smart non-woven fabrics (NWFs) with double transformations were prepared via the in situ grafting of Ag nanoparticles through an oxidation-reduction reaction and were modified using a mixed thiol-molecule solution, including HS(CH2)(10)CH3, HS(CH2)(10)COOH and HS(CH2)(11)OH. A NWF continuously separates immiscible oil-water mixtures with high selectivity and has considerable flux under gravity. The wettability of NWFs with an optimal thiol concentration shows reversible switches between superhydrophilicity-superhydrophobicity-superhydrophilicity, which corresponds to different conditions such as acidic, neutral and basic. The as-prepared NWFs had great oil absorption capacities and possessed high oil-water separation efficiency. This simple approach to fabricate pH-responsive NWFs has provided a facile and versatile strategy for effectively separating oil-water mixtures, which can be further applied for water treatment, purification of solvents or fuels and so on.