Underwater superoleophobic/underoil superhydrophobic corn cob coated meshes for on-demand oil/water separation

doi:10.1016/j.seppur.2017.12.023

	Underwater superoleophobic/underoil superhydrophobic corn cob coated meshes for on-demand oil/water separation
	Li, Jian 1; Bai, Xiangge 1; Tang, Xiaohua 1; Zha, Fei 1; Feng, Hua 1; Qi, Wei 2
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2018-04-29
卷号	195 页码:232-237
关键词	Underwater superoleophobic Underoil superhydrophobic Oil/water separation Separation efficiency Corn cob On-demand
ISSN号	1383-5866
DOI	10.1016/j.seppur.2017.12.023
通讯作者	Li, Jian(jianli83@126.com) ; Qi, Wei(qiwei@ms.giec.ac.cn)
英文摘要	The separation of water/oil mixtures is extensively required due to the expanding industrial oily wastewater and frequent oil spill accidents, exciting the development of facile and efficient oil/water separation technologies. in this study, corn cob powders (CCPs) coated meshes with underwater superoleophobicity and underoil super hydrophobicity were successfully fabricated by a facile spraying-coating method, which can be used for on demand immiscible oil/water mixtures separation without any additional chemical treatment. Thus, both separation modes (oil-blocking or water-blocking) in One single device were achieved for selective oil/water separation regardless of the heavy oil or light oil involved in the mixtures. The oil-blocking mode with underwater superoleophobicity allows water in light oil/water mixtures to permeate, while the water-blocking mode with underoil superhydrophobicity letting heavy oil to permeate. In addition, the high separation efficiencies larger than 99.9% for a series of oil/water mixtures were achieved in the single device with the driving-force only its gravity. Moreover, the coated meshes showed robust environmental stability that could be used for the separation of oil and various corrosive mixtures, such as strong acidic, alkaline and salt aqueous solutions. All these features make the coated mesh become an ideal candidate for on-demand separation of various oil/water mixtures.
资助项目	Natural Science Foundation of China[21376241] ; China Postdoctoral Science Foundation[2017M610031] ; Young Teacher Research Group Foundation of Northwest Normal University[NWNU-LKQN-16-6] ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development[Y707sc1001]
WOS关键词	WATER EMULSION SEPARATION ; SWITCHABLE WETTABILITY ; OIL ; MEMBRANES ; COATINGS ; SURFACE ; FILMS
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000425077100026
资助机构	Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Young Teacher Research Group Foundation of Northwest Normal University ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/23386]
专题	中国科学院广州能源研究所
通讯作者	Li, Jian; Qi, Wei
作者单位	1.Northwest Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Gansu, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Li, Jian,Bai, Xiangge,Tang, Xiaohua,et al. Underwater superoleophobic/underoil superhydrophobic corn cob coated meshes for on-demand oil/water separation[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2018,195:232-237.
APA	Li, Jian,Bai, Xiangge,Tang, Xiaohua,Zha, Fei,Feng, Hua,&Qi, Wei.(2018).Underwater superoleophobic/underoil superhydrophobic corn cob coated meshes for on-demand oil/water separation.SEPARATION AND PURIFICATION TECHNOLOGY,195,232-237.
MLA	Li, Jian,et al."Underwater superoleophobic/underoil superhydrophobic corn cob coated meshes for on-demand oil/water separation".SEPARATION AND PURIFICATION TECHNOLOGY 195(2018):232-237.