Tailoring the Performance of a Composite PEI Nanofiltration Membrane via Incorporating Activated PDA for Efficient Dye Sieving and Salt Separation DOI Creative Commons
Wanting Li, Jiaye Liu,

Weifu Wang

et al.

Membranes, Journal Year: 2025, Volume and Issue: 15(3), P. 75 - 75

Published: March 2, 2025

Efficient dye sieving and salt separation can facilitate the recycling of valuable resources in textile wastewater treatment. This study focuses on developing a high-performance nanofiltration membrane (NF) by co-depositing activated polydopamine (O-PDA), oxidized with KMnO4, polyethyleneimine (PEI) onto polysulfone support (PSF), thereby enabling effective separation. Due to high hydrophilicity PDA formation molecular polymers after oxidation, it was anticipated that O-PDA would crosslink PEI layer, providing rapid permeating channels. Filtration experiments demonstrated significantly enhanced retention rate membranes, achieving nearly threefold increase NaCl from 15% 45.7%. It observed performance could be adjusted controlling its loading or oxidation level. Furthermore, despite notable reduction permeability, removal efficiency O-PDA/PEI increased substantially 99.5%. Long-term filtration also confirmed both stability anti-fouling properties this design. Clearly, owing excellent operational characteristics, exhibits great potential for applications

Language: Английский

Marangoni-driven regional salt deposition in self-cleaning paper based evaporators for stable and high-performance desalination DOI

Yunong Xie,

Jinbu Su, Wenli Du

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159645 - 159645

Published: Jan. 15, 2025

Language: Английский

Citations

1
Asymmetric wettable Janus SiO2@PDMS/PVA@PVDF membrane for stable membrane distillation DOI

Xin Meng,

Wei Wang, Xuemei Chen

et al.

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 111607 - 111607

Published: Jan. 1, 2025

Language: Английский

Citations

0
Numerical investigation on a quaternary-driven rotary energy recovery device for desalination system: Performance evaluation and theoretical validation DOI
Jie Zhou, Qi Han, Z. Wen

et al.

Desalination, Journal Year: 2025, Volume and Issue: 603, P. 118648 - 118648

Published: Feb. 3, 2025

Language: Английский

Citations

0
Enhanced desalination performance of pilot-scale membrane capacitive deionization (MCDI) system with circulation process DOI
Bokjin Lee,

Jusuk An,

Seungjae Yeon

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118686 - 118686

Published: Feb. 1, 2025

Language: Английский

Citations

0
Tailoring the Performance of a Composite PEI Nanofiltration Membrane via Incorporating Activated PDA for Efficient Dye Sieving and Salt Separation DOI Creative Commons
Wanting Li, Jiaye Liu,

Weifu Wang

et al.

Membranes, Journal Year: 2025, Volume and Issue: 15(3), P. 75 - 75

Published: March 2, 2025

Efficient dye sieving and salt separation can facilitate the recycling of valuable resources in textile wastewater treatment. This study focuses on developing a high-performance nanofiltration membrane (NF) by co-depositing activated polydopamine (O-PDA), oxidized with KMnO4, polyethyleneimine (PEI) onto polysulfone support (PSF), thereby enabling effective separation. Due to high hydrophilicity PDA formation molecular polymers after oxidation, it was anticipated that O-PDA would crosslink PEI layer, providing rapid permeating channels. Filtration experiments demonstrated significantly enhanced retention rate membranes, achieving nearly threefold increase NaCl from 15% 45.7%. It observed performance could be adjusted controlling its loading or oxidation level. Furthermore, despite notable reduction permeability, removal efficiency O-PDA/PEI increased substantially 99.5%. Long-term filtration also confirmed both stability anti-fouling properties this design. Clearly, owing excellent operational characteristics, exhibits great potential for applications

Language: Английский

Citations

0