Polyaniline coated membranes for effective separation of oil-in-water emulsions | |
Department | 固体润滑国家重点实验室 |
Liu MM(刘明明)1,3; Li J(李静)1; Guo ZG(郭志光)1,2; Li J(李静); Guo ZG(郭志光) | |
2016 | |
Source Publication | Journal of Colloid and Interface Science |
ISSN | 0021-9797 |
Volume | 467Pages:261-270 |
Abstract | Polyaniline (PANI) decorated commercial filtration membranes, such as stainless steel meshes (SSMs) with 5 μm pore size and polyvinylidene fluoride (PVDF) membranes with 2–0.22 μm pore sizes, were fabricated by a simple one-step dilute polymerization at low temperature. Lots of short PANI nanofibers were firmly and uniformly coated onto the membrane surfaces, forming rough micro- and nanoscale structures and leading to underwater superoleophobicity with low oil-adhesion characteristic. Furthermore, we systematically studied the effect of pore size and pressure difference on oil–water separation ability of the obtained membranes. It was found that the PANI-modified SSMs with 5 μm pore size were suitable for the separation of non-surfactant emulsions with water fluxes of more than 1000 L m−2 h−1 under gravity only. The PANI-modified PVDF membranes were used for the effective separation of surfactant-stabilized emulsions with water fluxes up to 3000 L m−2 h−1 for 2 μm pore size under 0.1 bar or 0.22 μm pore size under 0.6 bar. In addition, the superhydrophilic membranes with PANI coatings were demonstrated for high oil rejection, stable underwater superoleophobic properties after ultrasonic treatment and immersing in oils and various harsh conditions, and high and steady water permeation flux after several cycles. |
Keyword | Polyaniline Porous Membranes Superhydrophilic Underwater Superoleophobic Oil-in-water Emulsion Separation |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.jcis.2016.01.024 |
Funding Organization | the National Nature Science Foundation of China (nos. 21203217;51522510);the “Top Hundred Talents” Program of Chinese Academy of Sciences |
Indexed By | SCI |
If | 4.233 |
Language | 英语 |
Funding Project | 空间润滑材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19750 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Li J(李静); Guo ZG(郭志光) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Hubei Univ, Minist Educ, Key Lab Green Preparat & Applicat Funct Mat, Wuhan 430062, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Liu MM,Li J,Guo ZG,et al. Polyaniline coated membranes for effective separation of oil-in-water emulsions[J]. Journal of Colloid and Interface Science,2016,467:261-270. |
APA | Liu MM,Li J,Guo ZG,李静,&郭志光.(2016).Polyaniline coated membranes for effective separation of oil-in-water emulsions.Journal of Colloid and Interface Science,467,261-270. |
MLA | Liu MM,et al."Polyaniline coated membranes for effective separation of oil-in-water emulsions".Journal of Colloid and Interface Science 467(2016):261-270. |
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