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

被引:43
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
基金
中国国家自然科学基金;
关键词
OIL; FABRICATION; FOAM; PERFORMANCE; VERSATILE; SURFACE; WASTE;
D O I
10.1021/acs.langmuir.9b02583
中图分类号
O6 [化学];
学科分类号
0703 ;
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.
引用
收藏
页码:14473 / 14480
页数:8
相关论文
共 37 条
[1]   Preparation and properties of pH-responsive reversible-wettability biomass cellulose-based material for controllable oil/water separation [J].
Cheng, Meixiao ;
He, Hui ;
Zhu, Hongxiang ;
Guo, Wei ;
Chen, Wenbo ;
Xue, Fei ;
Zhou, Shile ;
Chen, Xingjuan ;
Wang, Shuangfei .
CARBOHYDRATE POLYMERS, 2019, 203 :246-255
[2]   Conversion of skin collagen fibrous material waste to an oil sorbent with pH-responsive switchable wettability for high-efficiency separation of oil/water emulsions [J].
Dai, Guochen ;
Zhang, Zetian ;
Du, Weining ;
Li, Zhengjun ;
Gao, Wenwei ;
Li, Lixin .
JOURNAL OF CLEANER PRODUCTION, 2019, 226 :18-27
[3]   Polybenzoxazine-Functionalized Melamine Sponges with Enhanced Selective Capillarity for Efficient Oil Spill Cleanup [J].
Ge, Jianlong ;
Wang, Fei ;
Yin, Xia ;
Yu, Jianyong ;
Ding, Bin .
ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (46) :40274-40285
[4]   Superwetting Polymeric Three Dimensional (3D) Porous Materials for Oil/Water Separation: A Review [J].
Guan, Yihao ;
Cheng, Fangqin ;
Pan, Zihe .
POLYMERS, 2019, 11 (05)
[5]   pH-Responsive Sponges Fabricated by Ag-S Ligands Possess Smart Double-Transformed Superhydrophilic-Superhydrophobic-Superhydrophilic Wettability for Oil-Water Separation [J].
Guo, Jiahong ;
Wang, Jikui ;
Gao, Yihan ;
Wang, Jie ;
Chang, Wenbo ;
Liao, Siyuan ;
Qian, ZiMing ;
Liu, YaXin .
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2017, 5 (11) :10772-10782
[6]   Macroporous monoliths with pH-induced switchable wettability for recyclable oil separation and recovery [J].
Guo, Zanru ;
Gu, Hongjian ;
Chen, Qiang ;
He, Zhanfeng ;
Xu, Wenyuan ;
Zhang, Jiali ;
Liu, Yongxin ;
Xiong, Leyan ;
Zheng, Longzhen ;
Feng, Yujun .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2019, 534 :183-194
[7]   Oil/water separation techniques: a review of recent progresses and future directions [J].
Gupta, Raju Kumar ;
Dunderdale, Gary J. ;
England, Matt W. ;
Hozumi, Atsushi .
JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (31) :16025-16058
[8]   Adsorption Mechanism of Oil by Resilient Graphene Aerogels from Oil-Water Emulsion [J].
Huang, Jiankun ;
Yan, Zifeng .
LANGMUIR, 2018, 34 (05) :1890-1898
[9]   Renewable, Biomass-Derived, Honeycomblike Aerogel As a Robust Oil Absorbent with Two-Way Reusability [J].
Jiang, Jingxian ;
Zhang, Qinghua ;
Zhan, Xiaoli ;
Chen, Fengqiu .
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2017, 5 (11) :10307-10316
[10]   Oil/Water Separation Performances of Superhydrophobic and Superoleophilic Sponges [J].
Ke, Qingping ;
Jin, Yangxin ;
Jiang, Peng ;
Yu, Jian .
LANGMUIR, 2014, 30 (44) :13137-13142