Enhanced Polyimide–Graphene Oxide Nanofiltration Membranes for High‐Efficiency Separations of Inorganic Salts and Organic Dyes DOI

Xinyi Song,

Zhuo Chen, Xiaohua He

et al.

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

Published: April 5, 2025

ABSTRACT Polyimide (PI) nanofiltration (NF) membranes have garnered significant attention in water purification due to superior separation efficiency and stability. This study presents the fabrication of PI/graphene oxide (GO) NF through a non‐solvent‐induced phase inversion process, specifically for separations inorganic salts organic dyes. The chemical structures PI‐GO are characterized using Fourier transform infrared spectroscopy (FT‐IR) X‐ray photoelectron (XPS), their properties examined zeta potential measurements, contact angle tests, thermogravimetric analysis. incorporation GO significantly enhances hydrophilicity membranes, subsequently optimizing capabilities. Filtration experiments demonstrate that addition notably increases permeance PI substantially rejects negatively charged dyes such as Coomassie Brilliant Blue (CBB), Congo Red (CR), Direct Black 38 (DB38). Moreover, exhibit excellent salt ions while effectively removing Notably, also display remarkable performance with hot (50°C 90°C) CBB/Na 2 SO 4 feed solutions, indicating robust thermal These findings suggest hold substantial promise field technology, owing exceptional performance.

Language: Английский

Enhancing loose nanofiltration membrane performance with strategic diethanolamine and polyquaternium-10 modifications for efficient dye desalination DOI

Bingzhi Yi,

Lulu Liu, Hua He

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118586 - 118586

Published: Jan. 1, 2025

Language: Английский

Citations

1
A comprehensive study of recent advances, challenges and factors of nanofiltration membrane in various industrial applications DOI
Zubaida Rukhsana Usha, Cui Liu, Shudong Zhang

et al.

Desalination, Journal Year: 2024, Volume and Issue: unknown, P. 118461 - 118461

Published: Dec. 1, 2024

Language: Английский

Citations

4
A facile route to polyethyleneimine functionalized polyethersulfone membranes for drinking water softening and removal of diverse pollutants DOI
Linghui Wang, Dan Qiu,

Yitian Zha

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: 361, P. 131487 - 131487

Published: Jan. 10, 2025

Language: Английский

Citations

0
A novel loose nanofiltration membrane prepared using large rigid-contorted diamine monomer for dye purification DOI
Xiang Guo, Bin Zhao, Yue Li

et al.

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123928 - 123928

Published: March 1, 2025

Citations

0
Mercapto-UiO-66 induces polyamide chain ordering for efficient Li+/Mg2+ separation DOI

Xiaowen Huo,

Xiuling Liu,

Yue Miao

et al.

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123932 - 123932

Published: March 1, 2025

Language: Английский

Citations

0
Development of novel heterostructure composite nanofiltration membrane by interlocked and expanded Kevlar-nanofiber with g-C3N4 nanosheet DOI
Yanqing Xu,

Qite Qiu,

Jiaqi Xiong

et al.

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123927 - 123927

Published: March 1, 2025

Language: Английский

Citations

0
Enhanced Polyimide–Graphene Oxide Nanofiltration Membranes for High‐Efficiency Separations of Inorganic Salts and Organic Dyes DOI

Xinyi Song,

Zhuo Chen, Xiaohua He

et al.

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

Published: April 5, 2025

ABSTRACT Polyimide (PI) nanofiltration (NF) membranes have garnered significant attention in water purification due to superior separation efficiency and stability. This study presents the fabrication of PI/graphene oxide (GO) NF through a non‐solvent‐induced phase inversion process, specifically for separations inorganic salts organic dyes. The chemical structures PI‐GO are characterized using Fourier transform infrared spectroscopy (FT‐IR) X‐ray photoelectron (XPS), their properties examined zeta potential measurements, contact angle tests, thermogravimetric analysis. incorporation GO significantly enhances hydrophilicity membranes, subsequently optimizing capabilities. Filtration experiments demonstrate that addition notably increases permeance PI substantially rejects negatively charged dyes such as Coomassie Brilliant Blue (CBB), Congo Red (CR), Direct Black 38 (DB38). Moreover, exhibit excellent salt ions while effectively removing Notably, also display remarkable performance with hot (50°C 90°C) CBB/Na 2 SO 4 feed solutions, indicating robust thermal These findings suggest hold substantial promise field technology, owing exceptional performance.

Language: Английский

Citations

0