文献类型：期刊文献

英文题名：Amino-functionalized mesoporous PVA/SiO2 hybrids coated membrane for simultaneous removal of oils and water-soluble contaminants from emulsion

作者：Liu, Honglin[1];Yu, Hang[1];Yuan, Xiang[1];Ding, Weijie[1];Li, Yue[1];Wang, Jikui[1]

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

年份：2019

卷号：374

起止页码：1394

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20192607123144);WOS:【SCI-EXPANDED(收录号:WOS:000477652900127)】；

基金：Supported by Shanghai Leading Academic Discipline Project (B502) and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：Mesoporous structures; Superhydrophilicity/underwater superoleophobicity; Heavy metal ions and dyes adsorption; Oil/water emulsion separation; Hybrid coatings

摘要：A novel approach for simultaneously removing oil droplets and water-soluble contaminants from stabilized oil/water emulsion has been developed. Herein, the polyvinyl alcohol (PVA)/SiO2 hybrid coatings were fabricated via "one-step" hydrolysis and co-condensation, which possesses unique mesoporous structures (pore diameter approximate to 9.31 nm) and abundant amino groups. Hydrophobic polyvinylidene fluoride (PVDF) membranes adhered firmly by the hybrid coatings, are endowed with superhydrophilicity/underwater superoleophobicity, excellent antifouling performance, ultrahigh water flux (6343.2 Lm(-2) h(-1) bar(-1)), highly efficient oil-in-water emulsion separating capability (filtrate flux = 544.26 Lm(-2) h(-1) bar(-1)) and gravity-driven separation capability. Moreover, copper ion (Cu2+) and methyl blue (MB) can be effectively absorbed from water phase, with considerable adsorption capacities (Q(c)) of 52.8 mg/g and 41.88 mg/g, respectively. After 5 reusing cycles, the relative removal efficiencies (RE) are still higher than 86.89% and 99.76%, respectively. Moreover, with the outstanding reusability and considerable chemical durability, the as-prepared membranes are promising candidate in practical application for wastewater treatment, bridging the gap between contaminants adsorption and oil/water separation.