A polypropylene melt-blown strategy for the facile and efficient membrane separation of oil–water mixtures

Zhang, Zhenqiang; Yu, Danfeng; Xu, Xiubin; Li, Huayi; Mao, Taoyan; Cheng, Zheng; Huang, Jianxing; Yang, Hui; Niu, Zihan; Wu, Xu

doi:10.1016/j.cjche.2020.03.033

Cited by 16 publications

(7 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zhang et al, 176 fabricated eco-friendly, simple, and cost-effective facile PP nonwoven sorbent for oil-water separation via the melt-blown method (Figure 16(a) and (b)). The sorbent showed outstanding superoleophilicity with an oil contact angle of 0 and superhydrophobicity with a WCA of >150°owing to the rough surface of fibers and porous 165 structure of the sorbent (Figure 16(c)).…”

Section: Nonwoven Oil Cleanup Sorbentsmentioning

confidence: 99%

Recent advances of textile sorbents for oil spills cleanup: A review

Zaarour

Liu

2023

Journal of Industrial Textiles

View full text Add to dashboard Cite

Oil sorbents play a significant role in the treatment processes of oil spills, therefore, enhancing the oil-water separation capacity of sorbents has been charming the consideration of scientific researchers. To improve the properties of oil sorption and simplify the process of oil recovery, many advanced oil sorbent devices have been projected recently. Different types of materials are used as sorbents for oil-water separation, however, up to now, there is no review paper focused on textile (woven, knitting, and nonwoven) sorbents, and compared with them. In this review paper, the classification of textile fabrics, properties of surface wetting, fabrication methods of textile sorbents for oil spill cleanup, their properties, and recent applications in the field of oil cleanup are studied. We believe this review can serve as an essential reference for the formation of textile sorbents, their properties, and their applications in the field of oil spill cleanup.

show abstract

Section: Nonwoven Oil Cleanup Sorbentsmentioning

confidence: 99%

Recent advances of textile sorbents for oil spills cleanup: A review

Zaarour

Liu

2023

Journal of Industrial Textiles

View full text Add to dashboard Cite

show abstract

“…A comparison of different nanofiber production techniques is summarized in Table 2 . To date, the electrospinning technique is the most applied to produce nanofiber membranes for the oil/water separation [ 18 ], followed by melt-blowing [ 19 ] and melt-blending extrusion [ 20 ].…”

Section: An Overview Of Nanofiber Production Techniquesmentioning

confidence: 99%

An Overview of Recent Progress in Nanofiber Membranes for Oily Wastewater Treatment

Sarbatly

Chiam

2022

Nanomaterials

View full text Add to dashboard Cite

Oil separation from water becomes a challenging issue in industries, especially when large volumes of stable oil/water emulsion are discharged. The present short review offers an overview of the recent developments in the nanofiber membranes used in oily wastewater treatment. This review notes that nanofiber membranes can efficiently separate the free-floating oil, dispersed oil and emulsified oil droplets. The highly interconnected pore structure nanofiber membrane and its modified wettability can enhance the permeation flux and reduce the fouling. The nanofiber membrane is an efficient separator for liquid–liquid with different densities, which can act as a rejector of either oil or water and a coalescer of oil droplets. The present paper focuses on nanofiber membranes’ production techniques, nanofiber membranes’ modification for flux and separation efficiency improvement, and the future direction of research, especially for practical developments.

show abstract

“…The surface or capillary wall of CF was hydrophilic, and the water contact angle was less than 90°(θ WA < 90°). According to the Young− Laplace equation (eq (5)), the capillary force generated on the CF can absorb water into the capillary. DA had polar groups (such as −OH and −NH 2 ) as well as oxidative polymerization on the surface of CF to form PDA particles, making the surface It can be seen from the figure that both oil (red) and water can pass through CF; in contrast, for CF-PDA and m-CF, water can completely permeate through, while oil cannot.…”

Section: = R Cos Cosmentioning

confidence: 99%

“… 4 The membrane separation method based on a superwetting surface has been attracting extensive attention in the field of oily wastewater treatment because of its simple operation and high separation efficiency. 5 − 8 Notably, oily wastewater contains other pollutants, such as organic dyes and heavy-metal ions, among which heavy-metal ions are one of the most common and harmful pollutants in water pollution. 9 , 10 Adsorption is one of the most commonly used methods to remove heavy metals because of its simple operation, easy recycling, and low cost.…”

Section: Introductionmentioning

confidence: 99%

“…So far, many technologies have been reported for the disposal of oily wastewater, including flotation, centrifuges, oil skimmers, membrane separation, etc . The membrane separation method based on a superwetting surface has been attracting extensive attention in the field of oily wastewater treatment because of its simple operation and high separation efficiency. − Notably, oily wastewater contains other pollutants, such as organic dyes and heavy-metal ions, among which heavy-metal ions are one of the most common and harmful pollutants in water pollution. , Adsorption is one of the most commonly used methods to remove heavy metals because of its simple operation, easy recycling, and low cost. ,− A superhydrophilic membrane with functional groups for heavy-metal ion adsorption could simultaneously remove oil and heavy-metal ions from wastewater, which simplifies the purification process of oily wastewater containing heavy-metal ions and reduces the cost of wastewater treatment. − Wang et al prepared an organic-inorganic composite membrane by the electrospinning technique modified with 3-[(trimethoxysilyl) propyl]-diethylenetriamine to obtain a superhydrophilic and underwater superhydrophobic membrane. The membrane was used to treat artificial emulsified oily wastewater with the desired concentrations of heavy-metal ions Pb(II), Cr(III), and Ni(II); the water flux could reach 1517 ± 53 L·m –2 ·h –1 , and the removal efficiencies of both oil and heavy-metal ions were larger than 99%.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Superhydrophilic and Underwater Superoleophobic Cotton Fabric for Oil–Water Separation and Removal of Heavy-Metal Ion

Chen

et al. 2022

ACS Omega

View full text Add to dashboard Cite

Superhydrophilic and underwater superoleophobic cotton fabric (named CS-CF-PDA, or m-CF) was prepared by modifying the cotton fabric (CF) with dopamine (DA) and chitosan (CS). The oil–water separation and heavy-metal ion (e.g., Cu(II)) adsorption performances of m-CF were investigated, and m-CF was characterized by field emission scanning electron microscopy (FE-SEM), energy-dispersive spectroscopy (EDS), Fourier transform infrared (FT-IR), and thermogravimetric analysis (TGA). The results showed that the underwater oil contact angle (UWOCA) of m-CF was more than 156°. The m-CF was used to treat artificial oily wastewater containing Cu(II) under room temperature and atmospheric pressure and gravity, by which the separation efficiency, water flux, and Cu(II) removal rate could reach 99%, 17 400 L·m –2 ·h –1 , and 89%, respectively. Additionally, in the process of continuous treatment of oily wastewater, the water flux slightly decreased; on the contrary, the Cu(II) removal rate decreased significantly to 67% within 120 s. Cu(II) was one of the reasons for the decrease of water flux. The m-CF of adsorbed Cu(II) could be leached with HCl (0.1 mol·L –1 ) solution, and the Cu(II) desorption rate could reach over 95% within 120 s. After strong acid, strong alkali, high salt, and abrasion treatment, the UWOCAs of m-CF were still higher than 150°. In a word, in terms of oil–water separation, m-CF exhibited good acid, alkali, salt, and abrasion resistances. Also, it is an underwater superoleophobic material involving simple preparation, low cost, and environmental friendliness, which could remove the floating oil and heavy-metal ions from wastewater and has good industrial application prospects.

show abstract

A polypropylene melt-blown strategy for the facile and efficient membrane separation of oil–water mixtures

Cited by 16 publications

References 45 publications

Recent advances of textile sorbents for oil spills cleanup: A review

Recent advances of textile sorbents for oil spills cleanup: A review

An Overview of Recent Progress in Nanofiber Membranes for Oily Wastewater Treatment

Superhydrophilic and Underwater Superoleophobic Cotton Fabric for Oil–Water Separation and Removal of Heavy-Metal Ion

Contact Info

Product

Resources

About