Fabrication of a superhydrophilic PVDF-g-PAA@FeOOH ultrafiltration membrane with visible light photo-fenton self-cleaning performance

Chen, Jiazhi; Meng, Xiaorong; Tian, Yurui; Wang, Xudong; Zhu, Jiawei; Zheng, Huiqi; Wang, Lei

doi:10.1016/j.memsci.2020.118587

Cited by 67 publications

(6 citation statements)

References 36 publications

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“…AOPs can effectively remove organic pollutants by degrading the organic compounds to carbon dioxide and water mostly. − Photocatalysis has many applications due to its sustainable, green, and energy-efficient features. − In recent years, the membrane technology is coupled with photocatalysis to improve its self-cleaning performance. , Xu et al fabricated a polyacrylonitrile/titanium dioxide/polyaniline (PAN/TiO 2 /PANI) hybrid fiber by the electrospinning method. The obtained hybrid membrane effectively removed Congo red from water, and it can be regenerated by photocatalytic degradation under visible light irradiation.…”

Section: Introductionmentioning

confidence: 99%

“…26−28 In recent years, the membrane technology is coupled with photocatalysis to improve its self-cleaning performance. 29,30 Xu et al 31 fabricated a polyacrylonitrile/titanium dioxide/polyaniline (PAN/TiO 2 /PANI) hybrid fiber by the electrospinning method. The obtained hybrid membrane effectively removed Congo red from water, and it can be regenerated by photocatalytic degradation under visible light irradiation.…”

Section: Introductionmentioning

confidence: 99%

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Efficient Fenton-Like Catalysis Boosting the Antifouling Performance of the Heterostructured Membranes Fabricated via Vapor-Induced Phase Separation and In Situ Mineralization

Yang

Zhu

et al. 2021

ACS Appl. Mater. Interfaces

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A photocatalytic membrane with significant degradation and antifouling performance has become an important part in wastewater treatment. However, the low catalyst loading on the polymer membrane limits its performance improvement. Herein, we fabricated poly(vinylidene fluoride) (PVDF) and poly(acrylic acid) (PAA) blend membranes with a rough surface via a vapor-induced phase separation (VIPS) process. Then Fe3+ was cross-linked with the carboxyl groups on the membrane surface and further in situ mineralized into β-FeOOH nanorods. The resultant membranes exhibit not only hydrophilicity and underwater superoleophobicity but also favorable separation efficiency and high water flux in oil-in-water emulsions separation. Under visible light irradiation, the membrane can degrade methylene blue (MB) to 95.2% in 180 min. More importantly, the membrane has a significant photocatalytic self-cleaning ability for crude oil with a flux recovery ratio (FRR) as high as 94.1%. This work brings a new strategy to fabricate the rough and porous surface for high loading of the hydrophilic photo-Fenton catalyst, improving the oil/water emulsion separation and antifouling performance of the membranes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficient Fenton-Like Catalysis Boosting the Antifouling Performance of the Heterostructured Membranes Fabricated via Vapor-Induced Phase Separation and In Situ Mineralization

Yang

Zhu

et al. 2021

ACS Appl. Mater. Interfaces

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“…Obviously, the FeV 3 O 8 /H 2 O 2 system is superior to the commercial P25 (35%). In a word, the FeV 3 O 8 catalyst exhibits higher excellent catalytic efficiency than those of reported iron–vanadium oxides such as FeVO 4 nanosheets and other similar iron-based materials ,− (Table ).…”

Section: Resultsmentioning

confidence: 88%

FeV₃O₈ Nanorods for Photodegrading Multiple Dyes

Lin

Huang

Zhao

et al. 2023

ACS Appl. Nano Mater.

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nanostructures have attracted considerable attention in the field of environmental purification and energy conversion. In this paper, 1D FeV 3 O 8 nanorods with 100 nm diameter and about 1 μm length were synthesized via a facile benign route without any surfactants. The crystal structure morphology and chemical composition of the samples were characterized by powder X-ray diffraction, fieldemission scanning electron microscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, Brunauer−Emmett−Teller, and UV−vis and Raman spectroscopy. According to the results, the monoclinic phase of FeV 3 O 8 nanorods is a narrow band gap of 2.38 eV (HOMO, 0.81 eV; LUMO, −1.57 eV). The as-prepared FeV 3 O 8 nanorod has a large specific surface area of 20.006 m 2 g −1 . It could degrade 100% of Rhodamine B (RhB, 25 mg L −1 ) and 99% of Methylene blue (MB, 20 mg L −1 ) within 25 min and still can achieve 98% after four catalytic cycles, which is far better than a commercial TiO 2 catalyst (P25). A nucleation− nanoparticle−nanoflower−nanorod growth mechanism (4N mechanism) for the FeV 3 O 8 nanocrystals was proposed. Moreover, on the basis of the radical quenching and electron paramagnetic resonance tests, a possible photo-Fenton degradation mechanism was proposed. • OH was found to be the best active species during the degradation reactions. Results from this work show that the FeV 3 O 8 catalyst exhibited an excellent photocatalytic performance and durability toward the degradation of multiple organic pollutants in a neutral system.

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“…Meanwhile, the peak intensity at 3000–3700 cm −1 became stronger, which attributed to the –OH. 42 Since the PVDF has a vibration peaks around 840 cm −1 belonging to Fe–O–Fe stretching vibrations are overlapped. Compared with the membrane, the vibration peaks of Fe–O–Fe stretching intensity are intensified, meanwhile, the new peaks at 688 cm −1 were attributed to the Fe–O stretching vibrations.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of photo-Fenton self-cleaning PVDF composite membrane for highly efficient oil-in-water emulsion separation

Liao

et al. 2022

RSC Adv.

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Fabrication of a superhydrophilic PVDF-g-PAA@FeOOH ultrafiltration membrane with visible light photo-fenton self-cleaning performance

Cited by 67 publications

References 36 publications

Efficient Fenton-Like Catalysis Boosting the Antifouling Performance of the Heterostructured Membranes Fabricated via Vapor-Induced Phase Separation and In Situ Mineralization

Efficient Fenton-Like Catalysis Boosting the Antifouling Performance of the Heterostructured Membranes Fabricated via Vapor-Induced Phase Separation and In Situ Mineralization

FeV₃O₈ Nanorods for Photodegrading Multiple Dyes

Fabrication of photo-Fenton self-cleaning PVDF composite membrane for highly efficient oil-in-water emulsion separation

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Fabrication of a superhydrophilic PVDF-g-PAA@FeOOH ultrafiltration membrane with visible light photo-fenton self-cleaning performance

Cited by 67 publications

References 36 publications

Efficient Fenton-Like Catalysis Boosting the Antifouling Performance of the Heterostructured Membranes Fabricated via Vapor-Induced Phase Separation and In Situ Mineralization

Efficient Fenton-Like Catalysis Boosting the Antifouling Performance of the Heterostructured Membranes Fabricated via Vapor-Induced Phase Separation and In Situ Mineralization

FeV3O8 Nanorods for Photodegrading Multiple Dyes

Fabrication of photo-Fenton self-cleaning PVDF composite membrane for highly efficient oil-in-water emulsion separation

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FeV₃O₈ Nanorods for Photodegrading Multiple Dyes