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PVDF microfiltration membranes modified with AgNPs/tannic acid for efficient separation of oil and water emulsions | |
Zhang, Yuxin1,2,3; Duan, Xiaofei4,5; Tan, Boren2; Jiang, Yuchen6; Wang, Yong2,3; Qi, Tao2,3 | |
2022-07-05 | |
Source Publication | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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ISSN | 0927-7757 |
Volume | 644Pages:13 |
Abstract | Treatment of oil/water mixture, especially oil/water emulsions, is of great significance in the protection of both the environment and living creatures. Herein, in this work, we reported a two-step strategy to enhance the hydrophilicity and underwater oleophobicity of PVDF microfiltration membranes using tannic acid (TA, a nature plant polyphenol) and AgNO3 solutions. After coating by Ag nanoparticles (AgNPs)/TA (0.4 mg/ml Ag+, 0.2 mg/ ml TA), the PVDF membrane exhibited high hydrophilicity for a short immersion time (10.35 s) of a water droplet (V=5 mu l, initial WCA=19), underwater superoleophobicity (UOCA=161) and antifouling property and thus, high-efficiency oil/ water emulsions (SDS/kerosene/water emulsion) separation could be realized. Compared with Fe/TA-PVDF (0.4 mg/ml Fe2+, 0.2 mg/ml TA, initial WCA=21 and UOCA=156) and Cu/TAPVDF (0.4 mg/ml Cu2+, 0.2 mg/ml TA, initial WCA=31 and UOCA=147), the AgNPs/TA-PVDF in our work possessed best hydrophilicity and underwater superoleophobicity. In addition, the AgNPs/TA-PVDF could maintain its hydrophilicity, underwater superoleophobicity and mechanical property after rinsing tests and scratch resistance tests. |
Keyword | PVDF microfiltration membrane Tannic acid Ag nanoparticles High hydrophilicity Underwater superoleophobicity Oil-in-water emulsion separation |
DOI | 10.1016/j.colsurfa.2022.128844 |
Language | 英语 |
WOS Keyword | SILVER NANOPARTICLES ; NANOFIBROUS MEMBRANE ; PVDF MEMBRANE ; COMPLEXES ; GREEN |
Funding Project | National Natural Science Foundation of China[22178350] ; National Key Research and Development Program of China[2021YFC1910501] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A15] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM 2020DA02] |
WOS Research Area | Chemistry |
WOS Subject | Chemistry, Physical |
Funding Organization | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences |
WOS ID | WOS:000797570000005 |
Publisher | ELSEVIER |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ipe.ac.cn/handle/122111/53566 |
Collection | 中国科学院过程工程研究所 |
Corresponding Author | Wang, Yong |
Affiliation | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China 4.Univ Melbourne, Melbourne TrACEES Platform, Melbourne, Vic 3010, Australia 5.Univ Melbourne, Fac Sci, Sch Chem, Melbourne, Vic 3010, Australia 6.Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 2E8, Canada |
Recommended Citation GB/T 7714 |
Zhang, Yuxin,Duan, Xiaofei,Tan, Boren,et al. PVDF microfiltration membranes modified with AgNPs/tannic acid for efficient separation of oil and water emulsions [J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2022,644:13. |
APA |
Zhang, Yuxin,Duan, Xiaofei,Tan, Boren,Jiang, Yuchen,Wang, Yong,&Qi, Tao.(2022). PVDF microfiltration membranes modified with AgNPs/tannic acid for efficient separation of oil and water emulsions .COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,644,13. |
MLA |
Zhang, Yuxin,et al." PVDF microfiltration membranes modified with AgNPs/tannic acid for efficient separation of oil and water emulsions ".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 644(2022):13. |
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