A hydrophilic coating capable of withstanding acid and alkali to modify PVDF membrane

Wu, Zixin; Tian, Jiaying; Wu, Lili; Zhang, Chaocan

doi:10.1016/j.jwpe.2021.102519

Cited by 13 publications

(3 citation statements)

References 51 publications

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“…Finally, the absorption peak at 1115 cm –1 represents the Si–O–Si stretching vibration mode derived from hydrolyzed/condensed APTES. All of these findings were consistent with previous research. , …”

Section: Resultssupporting

confidence: 93%

“…All of these findings were consistent with previous research. 16,27 To further confirm the successful modification, the surface chemical composition of MF-Pristine and MF-(TA-APTES-SP-0.05) membranes was analyzed using the XPS technique. In the spectrum of MF-Pristine, two peaks of carbon and fluoride were present in the wide scan (Figure 5b).…”

Section: Possible Reaction Mechanism Of the Ta-aptes Hydrophilicmentioning

confidence: 99%

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Rapid Approach to Synthesizing a Tannic Acid (TA)-3-Aminopropyltrietoxysilane (APTES) Coating for Efficient Oil–Water Emulsion Separation

et al. 2022

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Plant polyphenol-inspired surface modification of membranes is helpful for oil−water separation. However, the preparation of this coating is time-consuming. Herein, we introduce a rapid synthesis of the TA-APTES coating by the addition of sodium periodate (SP). The surface chemical composition and morphology of the resultant TA-APTES hybrid coatings were characterized using SEM, ATR-FTIR, and XPS. The hydrophilicity and membrane performance were investigated by the water contact angle, pure water permeability, and oil rejection for an isooctane-in-water emulsion. The experimental findings revealed that the optimal microfiltration (MF) membrane (MF-TA-APTES-SP-0.05) displayed exceptional hydrophilicity and water permeability (9558 L m −2 h −1 bar −1 ). The membrane realized highly efficient separation with a permeability (4117 L m −2 h −1 bar −1 ) and rejection of oils (>99%). Furthermore, it possessed outstanding chemical stability and maintained underwater superoleophobicity even after exposure to harsh conditions. This simple and rapid strategy of developing hydrophilic coatings as a modifier for the poly(vinylidene fluoride) membranes has potential applications in oil−water separation and wastewater treatment.

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Section: Resultssupporting

confidence: 93%

Section: Possible Reaction Mechanism Of the Ta-aptes Hydrophilicmentioning

confidence: 99%

Rapid Approach to Synthesizing a Tannic Acid (TA)-3-Aminopropyltrietoxysilane (APTES) Coating for Efficient Oil–Water Emulsion Separation

et al. 2022

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“…Xu et al 34 developed a tea polyphenols and silica composite coating to obtain a superhydrophilic PVDF membrane. Wu et al 35 investigated a simple membrane modified with tea polyphenols and titanium ions to reduce membrane contamination. These membranes remained stable under acidic conditions during long-term rinsing experiments.…”

Section: Introductionmentioning

confidence: 99%

Simple temperature-regulated polymerization for the fabrication of a tea polyphenols-modified PVDF membrane for emulsion separation

Xie,

Lu,

Wei

et al. 2024

New J. Chem.

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Constructing a composite microfiltration carbon membrane by TiO2 and Fe2O3 for efficient separation of oil–water emulsions

Zhang

Peng

Yao

et al. 2023

Environ Sci Pollut Res

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A hydrophilic coating capable of withstanding acid and alkali to modify PVDF membrane

Cited by 13 publications

References 51 publications

Rapid Approach to Synthesizing a Tannic Acid (TA)-3-Aminopropyltrietoxysilane (APTES) Coating for Efficient Oil–Water Emulsion Separation

Rapid Approach to Synthesizing a Tannic Acid (TA)-3-Aminopropyltrietoxysilane (APTES) Coating for Efficient Oil–Water Emulsion Separation

Simple temperature-regulated polymerization for the fabrication of a tea polyphenols-modified PVDF membrane for emulsion separation

Constructing a composite microfiltration carbon membrane by TiO2 and Fe2O3 for efficient separation of oil–water emulsions

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