Stainless steel mesh supported TiO2 nanowires membrane with ultra-high flux for separation of oil-in-water mixtures and emulsions

被引：22
作者：
Kang, Yutang [1 ]
Jiao, Shihui [1 ]
Zhao, Yue [1 ]
Zhang, Zhenwei [1 ]
Wang, Boran [1 ]
Pang, Guangsheng [1 ]
机构：
[1] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2019年 / 375卷
基金：
中国国家自然科学基金;
关键词：
TiO2; nanowires; Deposition; Membrane; Oil/water separation; NANOFIBROUS MEMBRANE; OIL/WATER SEPARATION; CERAMIC MEMBRANES; COATED MEMBRANES; PVDF MEMBRANES; MICROFILTRATION; PERFORMANCE; LAYER; PURIFICATION; FABRICATION;
D O I：
10.1016/j.surfcoat.2019.07.049
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A stainless steel mesh supported TiO2 nanowires membrane is prepared by heating hydrogen titanate nanowires deposited on stainless steel mesh. The stainless steel mesh supported TiO2 nanowires membrane exhibits superhydrophilic and underwater superoleophobic property, The water contact angles in air of the stainless steel mesh supported TiO2 nanowires membrane is 0 degrees and the underwater oil contact angles (gasoline, n-hexadecane, hexamethylene and methylbenzene) are > 150 degrees. Both of surfactant-free oil-in-water mixtures and surfactantstabilized emulsions are separated with a high permeation flux of > 10(6) L m(-2) h(-1) bar(-1) and a separation efficiency of > 99.1%. The stainless steel mesh supported TiO2 nanowires membrane exhibits good resistant to fouling, and the possible organic pollutants are easy to be removed by heat treatment and the superhydrophilic and underwater superoleophobic property is recovered.
引用
收藏
页码：518 / 526
页数：9
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