Effective separation of surfactant-stabilized crude oil-in-water emulsions by using waste brick powder-coated membranes under corrosive conditions

doi:10.1039/c9gc04178h

	Effective separation of surfactant-stabilized crude oil-in-water emulsions by using waste brick powder-coated membranes under corrosive conditions
	Shi, Guogui 1; Shen, Yongqian 2; Mu, Peng 1; Wang, Qingtao 1; Yang, Yaoxia 1; Ma, Siyi 1; Li, Jian 1
刊名	GREEN CHEMISTRY
	2020-02-21
卷号	22 期号:4 页码:1345-1352
ISSN号	1463-9262
DOI	10.1039/c9gc04178h
英文摘要	Crude oil spill accidents that have been occurring frequently not only have been seriously destroying the marine ecological environment and threatening human health for a long time, but also generating a great loss of precious resources. Therefore, the treatment of crude oil wastewater, especially under corrosive conditions, is one of the most urgent problems. However, to the best of our knowledge, the effective separation of surfactant-stabilized micro-nanoscale crude oil-in-water emulsions under corrosive conditions has been rarely reported. Herein, waste bricks are employed to effectively separate the surfactant-stabilized micro-nanoscale crude oil-in-water emulsions under corrosive conditions, which not only enables the removal of crude oil, but also reduces environmental pollution. The suspensions of waste brick powders (WBP) and sodium alginate were coated onto a polyvinylidene fluoride (PVDF) membrane via a vacuum filtration approach to prepare a WBP-coated membrane. The as-prepared WBP-coated membrane exhibited excellent underwater superoleophobicity under corrosive conditions and low adhesion to crude oil. Besides, the WBP-coated membrane can separate crude oil-in-water emulsions with a separation efficiency of up to 99.8% and a permeating flux as high as 623 L m(-2) h(-1). More significantly, the as-prepared WBP-coated membrane can successfully separate crude oil-in-water emulsions under corrosive aqueous conditions (1 M HCl, 1 M NaOH and 3.5 wt% NaCl solution) with a separation efficiency of above 99.5% and a permeating flux of up to 934 L m(-2) h(-1). The WBP-coated membrane not only removes crude oil from oily wastewater, but also enables the recycling of waste resources.
资助项目	National Natural Science Foundation of China[51872245] ; Fok Ying-Tong Education Foundation of China[161044] ; Natural Science Foundation for Distinguished Young Scholars of Gansu Province, China[18JR3RA083] ; China Postdoctoral Science Foundation[2018T110025][2017M610031] ; Young Teacher Research Group Foundation of Northwest Normal University[NWNU-LKQN-16-6]
WOS研究方向	Chemistry ; Science & Technology - Other Topics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000518034000030
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/76626]
专题	材料科学与工程学院
通讯作者	Li, Jian
作者单位	1.Northwest Normal Univ, Coll Chem & Chem Engn, Gansu Int Sci & Technol Cooperat Base Water Reten, Lanzhou 730070, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Non Ferrous Me, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Shi, Guogui,Shen, Yongqian,Mu, Peng,et al. Effective separation of surfactant-stabilized crude oil-in-water emulsions by using waste brick powder-coated membranes under corrosive conditions[J]. GREEN CHEMISTRY,2020,22(4):1345-1352.
APA	Shi, Guogui.,Shen, Yongqian.,Mu, Peng.,Wang, Qingtao.,Yang, Yaoxia.,...&Li, Jian.(2020).Effective separation of surfactant-stabilized crude oil-in-water emulsions by using waste brick powder-coated membranes under corrosive conditions.GREEN CHEMISTRY,22(4),1345-1352.
MLA	Shi, Guogui,et al."Effective separation of surfactant-stabilized crude oil-in-water emulsions by using waste brick powder-coated membranes under corrosive conditions".GREEN CHEMISTRY 22.4(2020):1345-1352.