IMR OpenIR
Underwater superoleophobic PVA-GO nanofibrous membranes for emulsified oily water purification
Ghaffar, Abdul; Chen, Cheng; Zhu, Xiaoying; Chen, Baoliang
2019-12-01
Source PublicationENVIRONMENTAL SCIENCE-NANO
ISSN2051-8153
Volume6Issue:12Pages:3723-3733
AbstractAccidental oil spills during oil exploration, production and transportation constitute a significant environmental threat, and thus remain a major challenge. Given that, common polymeric membranes often exhibit surface fouling, which limits their long term practical applications and makes it hard to recycle them with efficient flux stability and separation efficiency. Herein, we report a versatile porous structured polyvinyl alcohol (PVA) based nanofibrous membrane (NFM) with graphene oxide (GO), prepared by simple and straightforward electrospinning, to remediate oily water. The PVA-GO NFM was prepared keeping in view an effective pore geometry and selective wettability to facilitate oily water emulsion separation entirely under gravitational force, with a controlled GO ratio and compatibility to avoid aggregation, allowing easy spin ability. The morphology of the PVA NFM was completely changed in the presence of GO due to homogenous distribution with robust mechanical strength and outstanding thermal stability. As a result, the as-prepared PVA-GO NFM achieves a separation efficiency of above 99% for surfactant-free and surfactant-stabilized oily water emulsions with a water flux of approximately 45 and 30 L m(-2) h(-1), entirely under gravitational force due to the presence of GO. Furthermore, the PVA-GO NFM maintains its actual selectivity and surface wettability even after recycling, thereby allowing long term applications with almost the same separation efficiency and water flux. The present methodology for membrane fabrication is believed to be an effective energy saving filtration approach, with anti-oil property and reusability, and thus is promising for practical use in water purification and treatment processes, specifically for oily water remediation.
Indexed BySCI
Language英语
WOS IDWOS:000501324000015
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80575
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Ghaffar, Abdul,Chen, Cheng,Zhu, Xiaoying,et al. Underwater superoleophobic PVA-GO nanofibrous membranes for emulsified oily water purification[J]. ENVIRONMENTAL SCIENCE-NANO,2019,6(12):3723-3733.
APA Ghaffar, Abdul,Chen, Cheng,Zhu, Xiaoying,&Chen, Baoliang.(2019).Underwater superoleophobic PVA-GO nanofibrous membranes for emulsified oily water purification.ENVIRONMENTAL SCIENCE-NANO,6(12),3723-3733.
MLA Ghaffar, Abdul,et al."Underwater superoleophobic PVA-GO nanofibrous membranes for emulsified oily water purification".ENVIRONMENTAL SCIENCE-NANO 6.12(2019):3723-3733.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ghaffar, Abdul]'s Articles
[Chen, Cheng]'s Articles
[Zhu, Xiaoying]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ghaffar, Abdul]'s Articles
[Chen, Cheng]'s Articles
[Zhu, Xiaoying]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ghaffar, Abdul]'s Articles
[Chen, Cheng]'s Articles
[Zhu, Xiaoying]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.