干旱区生态环境知识资源中心(Arid): Inverse desert beetle-like ZIF-8/PAN composite nanofibrous membrane for highly efficient separation of oil-in-water emulsions

Arid

DOI	10.1039/d0ta08469g
	Inverse desert beetle-like ZIF-8/PAN composite nanofibrous membrane for highly efficient separation of oil-in-water emulsions
	Li, Haoyu; Mu, Peng; Li, Jian; Wang, Qingtao
通讯作者	Li, J (corresponding author), Northwest Normal Univ, Key Lab Ecofunct Polymer Mat, Minist Educ, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China.
来源期刊	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
EISSN	2050-7496
出版年	2021
卷号	9 期号:7 页码:4167-4175
英文摘要	Purification of highly emulsified oily wastewater is of significance but challenging due to the critical limitations of low efficiency and serious membrane blocking. Herein, inspired by the desert beetle's capability of water-collection in air, we first constructed an inverse desert beetle-like membrane to achieve oil capture in water, thus improving the separation performances of the surfactant-stabilized oil-in-water emulsion. The as-prepared nanofibrous membrane consists of hydrophobic/oleophilic ZIF-8 bumps and underlying underwater superoleophobic polyacrylonitrile (PAN), and possesses a similar structure to desert beetles but with opposite wettability. In the process of emulsion demulsification, besides the sieving effect of the underlying traditional underwater superoleophobic PAN membrane, the bumpy oleophilic ZIF-8 particles of the composite membrane can capture oil, thus strengthening the demulsification ability of the membrane. Furthermore, the separation efficiency of the inverse desert beetle-like membrane is up to 99.92% for surfactant-stabilized oil-in-water emulsion, which is superior to that of traditional single underwater superoleophobic PAN membranes lacking the hydrophobic bump structure. Moreover, for light oil-in-water emulsion, the permeation flux also increases because the captured tiny oil droplets can aggregate subsequently and grow large enough to detach from the underlying surface which greatly reduces the incidence of filter cake formation and congestion. This inverse desert beetle-like membrane opens up new avenues for designing advanced membranes in the oil/water emulsion separation field.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000621407000034
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350939
作者单位	[Li, Haoyu; Mu, Peng; Li, Jian; Wang, Qingtao] Northwest Normal Univ, Key Lab Ecofunct Polymer Mat, Minist Educ, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Li, Haoyu,Mu, Peng,Li, Jian,et al. Inverse desert beetle-like ZIF-8/PAN composite nanofibrous membrane for highly efficient separation of oil-in-water emulsions[J],2021,9(7):4167-4175.
APA	Li, Haoyu,Mu, Peng,Li, Jian,&Wang, Qingtao.(2021).Inverse desert beetle-like ZIF-8/PAN composite nanofibrous membrane for highly efficient separation of oil-in-water emulsions.JOURNAL OF MATERIALS CHEMISTRY A,9(7),4167-4175.
MLA	Li, Haoyu,et al."Inverse desert beetle-like ZIF-8/PAN composite nanofibrous membrane for highly efficient separation of oil-in-water emulsions".JOURNAL OF MATERIALS CHEMISTRY A 9.7(2021):4167-4175.