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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 PublicationCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN0927-7757
Volume644Pages:13
AbstractTreatment 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.
KeywordPVDF microfiltration membrane Tannic acid Ag nanoparticles High hydrophilicity Underwater superoleophobicity Oil-in-water emulsion separation
DOI10.1016/j.colsurfa.2022.128844
Language英语
WOS KeywordSILVER NANOPARTICLES ; NANOFIBROUS MEMBRANE ; PVDF MEMBRANE ; COMPLEXES ; GREEN
Funding ProjectNational 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 AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences
WOS IDWOS:000797570000005
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/53566
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Yong
Affiliation1.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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