Anti‐fouling loose polyamide nanofiltration membrane preparation by biodegradable sophorolipids for precise separation of simulated dyeing wastewater DOI

Xin‐Xi Ding,

Cheng Jiang,

Ming Li

et al.

Journal of Chemical Technology & Biotechnology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

Abstract Background Strengthening the recycling and utilization of resources is deeply significant in achieving carbon neutrality. The nanofiltration membranes possess separation ability within nanoscale by utilizing special pore size ranges surface charge properties, showing great application prospects resource recycling. commercial are mainly prepared interfacial polymerization with fast reaction speed easy scaling‐up advantages. However, obtained polyamide dense selective layers low permeance efficiency to molecules. Herein, biodegradable surfactant sophorolipid was added aqueous solution improve performance membranes. Results Compared traditional membranes, sophorolipid‐modified membrane improved from 3 18 L·m −2 ·h −1 ·bar . modified showed high rejection dyes large molecular structures those small structures. Conclusion may separate mixed dye congo red (molecular weight 696.66 g/mol) indigo carmine 407.98 red/NaCl precisely. Besides, good anti‐fouling properties long‐term stability test. This study offer research significance for treatment printing dyeing wastewater. © 2024 Society Chemical Industry (SCI).

Language: Английский

Tailored nanofiltration membrane for enhanced antibiotic desalination by surface modification using branched quaternary triethanolamine assembly DOI
Xiang Guo, Bin Zhao, Yue Li

et al.

Journal of Membrane Science, Journal Year: 2024, Volume and Issue: unknown, P. 123364 - 123364

Published: Sept. 1, 2024

Language: Английский

Citations

4
Conversion of membrane surface charge property via post-crosslinking for heavy metal ions removal DOI

Mwema Wanjiya,

Chenggang Jin,

Yue Shen

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131613 - 131613

Published: Jan. 1, 2025

Language: Английский

Citations

0
Magnetically Modified Bentonite for Optimized Erythromycin Removal via RSM and DFT Analysis DOI Creative Commons
Ying‐Chieh Hung, Yuqi Wu,

Ru-Hau Ye

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(8), P. 1792 - 1792

Published: April 16, 2025

Erythromycin (ERY), an antibiotic widely used in human and veterinary medicine, persists the environment due to its low degradability, accumulating wastewater soil. This study presents a novel adsorbent synthesized by magnetically modifying calcined natural bentonite with Fe3O4 nanoparticles enhance ERY removal. The modification increased surface area, highest adsorption observed at pH 11. Adsorption studies revealed that Dubinin–Radushkevich isotherm model pseudo-first-order kinetic best described behavior. Response methodology (RSM) was employed optimize key parameters, including dosage, temperature, contact time. quadratic indicated optimal conditions of 41.9 mg adsorbent, 29.1 °C, 9.6 h time, yielding maximum removal efficiency 96.2%. Density functional theory (DFT) analysis provided molecular-level understanding mechanism, identifying strong interactions between ERY, Fe3O4, bentonite. theoretical binding energy aligns experimental results, confirming role magnetic promoting adsorption. demonstrates promising approach for mitigating contamination aqueous environments.

Language: Английский

Citations

0
Deep Eutectic Solvent-Mediated Engineering of Polyamide Membranes for High-Performance Loose Nanofiltration DOI Creative Commons
Yang Xu, Zhi Cao, Huiqing Wu

et al.

Polymer science & technology., Journal Year: 2025, Volume and Issue: unknown

Published: May 20, 2025

Language: Английский

Citations

0
Chitosan‐Integrated MXene‐Based Nanofiltration Membrane With High Permeability for Efficient Dye Wastewater Treatment DOI

Yanyan Qin,

Ke Su,

Yixuan Zhao

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

ABSTRACT Two‐dimensional MXene nanofiltration membranes hold the promise for sustainable and rapid wastewater treatment. Nevertheless, addressing significant swelling issue of in water remains a critical challenge prior to their practical implementation. Herein, negatively charged MXene‐based membrane is modified with positively chitosan (CS) at various MXene:CS mass ratios using straightforward hybrid approach. The CS‐MXene vacuum filtered onto an electrospun polyacrylonitrile (PAN) substrate serve as barrier layer, resulting creation anti‐swelling CS‐MXene/PAN composite characterized by exceptional mechanical strength, stability, loose structure. synergistic interaction between layer PAN imparts superior low‐pressure performance. Specifically, CS ratio 1:2, exhibits rejection rates 99.83%, 99.04%, 99.93%, 98.84% alcian blue 8GX, Sirius red, Coomassie brilliant blue, Congo respectively, along corresponding fluxes 435.23, 244.71, 573.76, 505.11 L m −2 h −1 0.2 MPa. also demonstrates long‐term stability during dye treatment, permeate flux remaining high level. These characteristics make promising candidate applications.

Language: Английский

Citations

0
Construction of self-cleaning nanofiltration membranes inspired by biomimetic catalysis utilizing cobalt phthalocyanine DOI

Shiyuan Jia,

Shi-Wen Lv, Tao Fang

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 163657 - 163657

Published: May 1, 2025

Language: Английский

Citations

0
Schiff Bases Derived from Pyridoxal 5′-Phosphate and 2-X-Phenylamine (X = H, OH, SH): Substituent Effects on UV-Vis Spectra and Hydrolysis Kinetics DOI Creative Commons
Maksim N. Zavalishin, A. N. Kiselev, G. A. Gamov

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(15), P. 3504 - 3504

Published: July 26, 2024

Schiff bases are compounds that widely distributed in nature and have practical value for industry biomedicine. Another important use of is identifying metal ions different molecules, including proteins. Their proneness to hydrolysis limits the utilization mainly non-aqueous solutions. However, by introducing -OH -SH substituents aromatic amine-bearing rings, it possible increase resilience base destruction water. The present paper discusses how hydroxyl or thiol group influences spectral properties kinetics formation derived from pyridoxal 5'-phosphate aniline, 2-hydroxyaniline, 2-mercaptoaniline using quantum chemical data. variation between imines can be explained taking into account geometry frontier molecular orbital alteration induced substituents. changes rate analyzed computed values local reactivity indices.

Language: Английский

Citations

0
Anti‐fouling loose polyamide nanofiltration membrane preparation by biodegradable sophorolipids for precise separation of simulated dyeing wastewater DOI

Xin‐Xi Ding,

Cheng Jiang,

Ming Li

et al.

Journal of Chemical Technology & Biotechnology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

Abstract Background Strengthening the recycling and utilization of resources is deeply significant in achieving carbon neutrality. The nanofiltration membranes possess separation ability within nanoscale by utilizing special pore size ranges surface charge properties, showing great application prospects resource recycling. commercial are mainly prepared interfacial polymerization with fast reaction speed easy scaling‐up advantages. However, obtained polyamide dense selective layers low permeance efficiency to molecules. Herein, biodegradable surfactant sophorolipid was added aqueous solution improve performance membranes. Results Compared traditional membranes, sophorolipid‐modified membrane improved from 3 18 L·m −2 ·h −1 ·bar . modified showed high rejection dyes large molecular structures those small structures. Conclusion may separate mixed dye congo red (molecular weight 696.66 g/mol) indigo carmine 407.98 red/NaCl precisely. Besides, good anti‐fouling properties long‐term stability test. This study offer research significance for treatment printing dyeing wastewater. © 2024 Society Chemical Industry (SCI).

Language: Английский

Citations

0