Bio-inspired fabrication of superhydrophilic nanocomposite membrane based on surface modification of SiO2 anchored by polydopamine towards effective oil-water emulsions separation

被引：189
|
作者：
Cui, Jiuyun [1 ]
Zhou, Zhiping [1 ]
Xie, Atian [2 ]
Meng, Minjia [2 ]
Cui, Yanhua [2 ]
Liu, Siwei [1 ]
Lu, Jian [3 ]
Zhou, Shi [2 ]
Yan, Yongsheng [2 ]
Dong, Hongjun [2 ]
机构：
[1] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Sch Chem & Chem Engn, Inst Green Chem & Chem Technol, Zhenjiang 212013, Peoples R China
[3] Jilin Normal Univ, Sch Chem, Changchun 130032, Jilin, Peoples R China
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2019年 / 209卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Bio-inspired; Nanocomposite membrane; Superhydrophilicity; Underwater superoleophobicity; Oil-water emulsions separation; OIL/WATER SEPARATION; ULTRAFILTRATION MEMBRANES; PERFORMANCE; COATINGS; HEPARIN; ACID;
D O I：
10.1016/j.seppur.2018.03.054
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A new PVDF@pDA@SiO2 nanocomposite membrane was fabricated by virtue of the surface modification of polydopamine anchored SiO2 on PVDF membrane through a facile and eco-friendly preparation process. It possessed the superior superhydrophilicity/underwater superoleophobicity properties and presented the out standing antifouling oil performance and high-efficiency separation ability for oil-water emulsions, which mainly resulted from its special surface micro-nano structure and pore induced capillarity phenomenon. Furthermore, the PVDF@pDA@SiO2 nanocomposite membrane also exhibited the splendid separation performance, regeneration ability and universality for various oil-water emulsions separation. In addition, the oil water emulsion separation mechanism was discussed in depth. This work might provide a significant guidance for large-scale production and application of this nanocomposite membrane in the fields of wastewater recovery and drinking water treatment.
引用
收藏
页码：434 / 442
页数：9
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