A review on oil/water emulsion separation membrane material

Zhang, Ning; Yang, Xianwen; Wang, Yalun; Qi, Yunping; Zhang, Yana; Luo, Jialiang; Cui, Ping; Jiang, Wei

doi:10.1016/j.jece.2022.107257

Cited by 92 publications

(57 citation statements)

References 238 publications

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“…There are several physical and chemical methods for the purification of oily wastewater. A number of techniques such as solvent extraction, microwave irradiation, oxidation, landfill, electrokinetics and froth flotation have been developed to separate oil–water mixtures but with limited success either due to their low efficiency or high cost [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Graft Polymerization of Stearyl Methacrylate on PET Track-Etched Membranes for Oil–Water Separation

et al. 2022

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In this article, results of PET track-etched membranes (PET TeMs) hydrophobized by photo-induced graft polymerization of stearyl methacrylate (SM) inside the pores were presented. The effects of monomer concentration, time of irradiation and the nature of the solvent on the degree of grafting and membrane morphology were investigated. The PET TeMs with pore diameters ranging from 350 nm (pore density of 1 × 108 pore/cm2) to 3.05 µm (pore density of 1 × 106 pore/cm2) were hydrophobized and tested for oil–water separation by using hexadecane–water and chloroform–water emulsions. Studies have shown high separation performance for membranes (up to 1100 mL/m2·s) with large pore diameters while achieving a high degree of purification.

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Section: Introductionmentioning

confidence: 99%

Graft Polymerization of Stearyl Methacrylate on PET Track-Etched Membranes for Oil–Water Separation

et al. 2022

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“…The continuous phase flow could be expressed by Hagen-Poiseuille equation [ 26 ]:

where J refers to the permeation flux,

is the intrusion pressure,

is the porosity, d is the material thickness,

represents the liquid viscosity, and

refers to the tortuosity. According to the above equation, an ideal separtion material should consider the following three aspects: (1) opposite affinity to water and oil; (2) suitable pore size for the selective permeation; (3) as much porosity as possible [ 27 ].…”

Section: Basic Theories and Materials Characteristicsmentioning

confidence: 99%

Recent Advances in Biomass-Based Materials for Oil Spill Cleanup

2023

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Oil spill on sea surfaces, which mainly produced by the oil leakage accident happened on tankers, offshore platforms, drilling rigs and wells, has bring irreversible damage to marine environments and ecosystems. Among various spill oil handling methods, using sorbents to absorb and recover spill oils is a perspective method because they are cost-effective and enable a high recovery and without secondary pollution to the ecosystem. Currently, sorbents based on biomass materials have aroused extensively attention thanks to their features of inexpensive, abundant, biodegradable, and sustainable. Herein, we comprehensively review the state-of-the-art development of biomass-based sorbents for spill oil cleanup in the recent five years. After briefly introducing the background, the basic theory and material characteristics for the separation of oil from water and the adsorption of oils is also presented. Various modification methods for biomass materials are summarized in section three. Section four discusses the recent progress of biomass as oil sorbents for oil spill cleanup, in which the emphasis is placed on the oil sorption capacity and the separation efficiency. Finally, the challenge and future development directions is outlined.

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Section: Introductionmentioning

confidence: 99%

“…In general, the construction of superhydrophobic surfaces can be achieved by simultaneous modification of the surface chemistry/chemical composition and the topography/surface microstructure. 9 The common substrates that have been hydrophobically modified for oil/water separation include metal meshes, 10 polymeric membranes, 11,12 sponges, 13,14 and woven/nonwoven fabrics and textiles. 15 Nonwoven fabrics (NWFs) are considered as random sheets/ webs of fibers, which are held together by bonding or interlocking of the fibers through chemical, mechanical, thermal, or solvent methods along with their combinations.…”

Section: Introductionmentioning

confidence: 99%

Facile and Green Fabrication of Superhydrophobic Polyacrylonitrile Nonwoven Fabric with Iron Hydroxide Nanoparticles for Efficient Oil/Water Separation

Abu-Thabit

Azad

Mezghani

et al. 2022

ACS Appl. Polym. Mater.

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Superhydrophobic materials have been used for the treatment of oily wastewater due to their selective absorption properties. However, many of the reported methods for creating superhydrophobic surfaces lack the feasibility for large-scale production due to the use of non-environmentally friendly chemicals or the involvement of complicated fabrication steps. In this study, we report a simple, green, and rapid process for fabricating superhydrophobic polyacrylonitrile (PAN) nonwoven fabric (NWF) for the separation of oil/water mixtures via adsorption and filtration strategies. PAN NWF was functionalized with iron hydroxide nanoparticles, which endowed the modified fabric with increased surface roughness and hydrophobic property. In the next step, the superhydrophobicity was attained by creating a multiscale hierarchical surface roughness and lowering the surface energy via an in situ deposition of the iron palmitate complex nano/ microparticles. The resulting superhydrophobic PAN NWF exhibited high chemical stability in corrosive environments and excellent mechanical durability as revealed from the sandpaper abrasion and tape peeling tests. The superhydrophobic NWF showed good oil absorption capacity, high permeation flux, high separation efficiency, and stable performance for 20 separation cycles. The excellent durability, recyclability, and long-term separation performance are expected to enable the application of the modified fabric for water−oil separation in harsh environments.

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A review on oil/water emulsion separation membrane material

Cited by 92 publications

References 238 publications

Graft Polymerization of Stearyl Methacrylate on PET Track-Etched Membranes for Oil–Water Separation

Graft Polymerization of Stearyl Methacrylate on PET Track-Etched Membranes for Oil–Water Separation

Recent Advances in Biomass-Based Materials for Oil Spill Cleanup

Facile and Green Fabrication of Superhydrophobic Polyacrylonitrile Nonwoven Fabric with Iron Hydroxide Nanoparticles for Efficient Oil/Water Separation

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