文献类型：期刊文献

英文题名：Smart Amphiphilic Random Copolymer-Coated Sponge with pH-Switchable Wettability for On-Demand Oil/Water Separation

作者：Jin, Ling[1];Wang, Yijing[1];Xue, Tao[1];Xie, Jing[1];Xu, Yesheng[1];Yao, Yuan[1];Li, Xinxin[1]

机构：[1]East China Univ Sci & Technol, Key Lab Specially Funct Polymer Mat & Related Tec, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：35

期号：45

起止页码：14473

外文期刊名：LANGMUIR

收录：;EI(收录号：20194507646642);WOS:【SCI-EXPANDED(收录号:WOS:000497262300008)】；

基金：The authors are grateful for the financial support provided by the National Natural Science Foundation of China Project (grant no. 51573088) and the Fundamental Research Funds for the Central Universities (no. 50321041917001).

语种：英文

外文关键词：Alkalinity - Mechanical stability - Porous materials - Separation

摘要：To prepare intelligent controllable oil/water separation materials with high mechanical stability and good recyclability, we fabricated a novel pH-controlled wettability melamine sponge by using a facile dipcoating method. The coated sponge exhibits reversibly switchable wettability between superhydrophilicity-superoleophobicity through acidic surrounding and superhydrophobicity-superoleophilicity under neutral or alkaline conditions. The as-prepared sponge possesses excellent absorption capacity (46.06-122.81 g/g) and oil/water separation efficiency (above 98%). The coated sponge also has good mechanical stability and recyclability which means it can be reused for absorption and oil/water separation. This smart porous material, which can flexibly transform wettability on demand, has great application prospects in oil/water separation.