Fabrication of hollow fiber membrane microstructures and the investigation of antifouling mechanism for vegetable oil wastewater

Journal of Membrane Science, Journal Year: 2023, Volume and Issue: 693, P. 122385 - 122385

Published: Dec. 23, 2023

Language: Английский

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Molecularly imprinted nylon membrane with high hydrophilicity and antifouling properties for efficient separation of sulfonamides

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 350, P. 127944 - 127944

Published: May 13, 2024

Language: Английский

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Development of Tannic Acid Coated Polyvinylidene Fluoride Membrane for Filtration of River Water Containing High Natural Organic Matter

Sci, Journal Year: 2023, Volume and Issue: 5(4), P. 42 - 42

Published: Nov. 20, 2023

River water can be used as a source of drinking water. However, it is vital to consider the existence natural organic matter (NOM) and its possible influence on quality (low turbidity, high color). The level NOM in river significantly impacts ecosystem’s health water’s quality, needs removed. A membrane-based approach attractive for treating successfully, but still hindered by membrane fouling problem. This study aims develop polyvinylidene fluoride (PVDF)-based membranes customized removal from anti-fouling property was imposed coating tannic acid (TA) Fe3+ pre-prepared PVDF membrane. results show that TA–Fe coatings were effective, demonstrated FTIR spectra, SEM, EDS data. made more hydrophilic, with smaller pore size lower clean permeability. Such properties offer enhanced rejections (up 100%) remarkably higher recovery 23%), desirable maintaining long-term filtration performance.

Language: Английский

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Superwetting Polypropylene Nonwoven Fabrics Modified by a Catechol-Based Biomimetic Strategy for Oil/Water Separation

ACS Applied Polymer Materials, Journal Year: 2023, Volume and Issue: 5(12), P. 10484 - 10493

Published: Nov. 27, 2023

The superwetting membrane with superhydrophilic/underwater superoleophobic properties is one of the ideal materials for treating oily wastewater. We combined a catechol/silane biomimetic composite coating system and metal-phenolic network structure to co-deposit dopamine-like superhydrophilic on polypropylene nonwoven fabrics. modified fabric separated oil–water mixtures filtration efficiency up 99%. Besides, as-prepared material has property nonstick oil underwater outstanding stability. After 30 cycles separation tests, pure water flux can be restored 94.5% initial value after rinsing deionized water. It maintained being immersed in harsh environment pH 1 or 13 h. Compared dopamine hydrophilic modification, this method was more economical time-consuming could fabricate full-scale material.

Language: Английский

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Electrochemical synthesis of ultra-flexible PES/HKUST-1 composite membranes for wastewater treatment

Microporous and Mesoporous Materials, Journal Year: 2023, Volume and Issue: 366, P. 112917 - 112917

Published: Nov. 27, 2023

Language: Английский

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Fabrication and oil-water separation properties of cerium oxide coated zirconium oxide composite membranes

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2023, Volume and Issue: 683, P. 133069 - 133069

Published: Dec. 23, 2023

Language: Английский

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Iron-Based Oxides Anchored on the Catechol/Silane-Coated Polypropylene Nonwoven Fabrics for Effective Removal of Anionic Dyes

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(10), P. 6150 - 6161

Published: May 8, 2024

The dopamine modification strategy has received extensive attention in water treatment due to its simple and gentle preparation process, excellent adhesion, good secondary reactivity. Further research found that compounds containing the catechol groups can react with amino-containing silane coupling agents under mild conditions form dopamine-like hydrophilic coatings on surface of hydrophobic membranes or fibers. This paper used cheap polypropylene melt-blown nonwovens as substrate prepare a large-capacity dye adsorbent PP-(CK-Fe). Specifically, (CA) (3-aminopropyl) triethoxysilane (KH550) were codeposited coating substrate. Then, we reactivity grow iron-based oxides situ. had adsorption performance anionic dyes at initial pH solution, including Orange II (380 mg/g), methyl orange (268 Congo red (294 carmine (263 mg/g). However, it almost no effect cationic pH, methylene blue Rhodamine B. We chose explore possible mechanism. results confirmed 3–11. process tended be monolayer chemical adsorption. maximum capacity (Qmax) was 515.46 mg/g optimal conditions. study also codeposition constructed polyphenol similar coating.

Language: Английский

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

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(30), P. 13324 - 13334

Published: Jan. 1, 2024

Surface modification of membranes through facile coating methods is a promising way to improve their pollution resistance and separation performance.

Language: Английский

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Recent study on hydrophilization of polyvinylidene fluoride membrane for oily–wastewater treatment

Chinese Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

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Recent development of special wettability filtration membrane for selective oil/water separation applications: A review

Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 198, P. 108885 - 108885

Published: Nov. 4, 2024

Language: Английский

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