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author:

Wang, Bao (Wang, Bao.) [1] | Feng, Shaotong (Feng, Shaotong.) [2] | Wang, Caihua (Wang, Caihua.) [3] | Liu, Xiaoyan (Liu, Xiaoyan.) [4] | Chen, Lei (Chen, Lei.) [5] | Yan, Dayun (Yan, Dayun.) [6]

Indexed by:

Scopus SCIE

Abstract:

Flexible and effective methods for oil-water separation are crucial for reducing pollutant emissions and safeguarding water and fuel resources. In recent years, there has been growing interest in fundamental research and engineering applications related to water and fuel purification, especially oil-water separation. To date, filter materials with special wetting characteristics have been widely used in oil-water separation. Nanostructured materials are one of the most attractive candidates for next-generation oil-water separation. This review systematically summarizes the mechanisms and current status of oil-water separation using nanostructured materials. Basically, this can be achieved by using nanostructured materials with specific wettability and nanostructures. Here, we provide a detailed discussion of two general approaches and their filtration mechanisms: (1) the selective filtration technique, based on specific surface wettability, which allows only oil or water to penetrate while blocking impurities; (2) the absorption technique, employing porous sponges, fibers, or aerogels, which selectively absorbs impure oil or water droplets. Furthermore, the main failure modes are discussed in this review. The purposes of this article are: (1) to summarize the methods of oil-water separation by nanotechnology; (2) to raise the level of environmental protection consciousness of water pollution by using nanotechnology; (3) to tease out the features of different approaches and provide a pivotal theoretical basis to optimize the performance of filtering materials. Several approaches for oil and water separation are compared. Furthermore, the principle and application scope of each method are introduced.

Keyword:

failure mode filtration mechanism nanostructure water-oil separation wettability

Community:

  • [ 1 ] [Wang, Bao]Northeast Petr Univ, Sch Mech Sci & Engn, Daqing 163318, Peoples R China
  • [ 2 ] [Wang, Caihua]Northeast Petr Univ, Sch Mech Sci & Engn, Daqing 163318, Peoples R China
  • [ 3 ] [Liu, Xiaoyan]Northeast Petr Univ, Sch Mech Sci & Engn, Daqing 163318, Peoples R China
  • [ 4 ] [Wang, Bao]Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China
  • [ 5 ] [Chen, Lei]Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China
  • [ 6 ] [Feng, Shaotong]Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350000, Peoples R China
  • [ 7 ] [Yan, Dayun]George Washington Univ, Dept Mech & Aerosp Engn, Washington, DC 20052 USA

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Source :

SEPARATIONS

ISSN: 2297-8739

Year: 2023

Issue: 11

Volume: 10

2 . 5

JCR@2023

2 . 5 0 0

JCR@2023

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 4

SCOPUS Cited Count: 5

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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