Polyamide-Crystalline Covalent Organic Framework Dual-Layer Nanofiltration Membrane with Improved Ion Selectivity DOI
Rahul Sampat Khandge, Thanh-Tin Nguyen, Zhiqin Qiang

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(22), P. 13877 - 13885

Published: Nov. 8, 2024

There is growing interest in designing nanofiltration (NF) membranes for selective separations. However, controlling the formation process of polyamide (PA) to achieve simultaneous improvements permeance and selectivity remains challenging. The use an interlayer has recently emerged as a promising strategy tackle this trade-off. Herein, nanoporous covalent organic framework (COF) interlayers were employed facilitate thin PA membrane layer. COF synthesized through counter-diffusion IP method, during which solvent catalyst tailored different extents crystallinity. made by conventional on these found show better performance than that pristine polymer support. In addition, crystalline COFs resulted layer featuring narrow pore size distribution high negative surface charge. resulting dual-layer exhibited enhanced NF performance, with superior rejection divalent salts (Na2SO4, 99.6%; MgSO4, 97.4%), mono/divalent (NaCl/Na2SO4, 137), water permeance. combined exceed those most reported membranes, making PA/crystalline NF-based separation.

Language: Английский

Revisiting the efficacy of COF treatment for dyes in wastewater: A comprehensive review DOI
Xiaoyu Du,

Hailiang Nie,

Yanqing Qu

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: 13(2), P. 115660 - 115660

Published: Jan. 30, 2025

Language: Английский

Citations

2
Layered double hydroxide-based membranes for advanced water treatment: Structural engineering and multifunctional applications DOI

Yahui Xuan,

Xiaofang Feng,

Shuning Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161746 - 161746

Published: March 1, 2025

Language: Английский

Citations

1
Multifunctional Paf@Bc Composite Membranes for Efficient Separation, Purification, and Environmental Applications DOI

Hongliang Lei,

Zhiyi Li, Jia Sun

et al.

Published: Jan. 1, 2025

To enhance the device integration and stabilization of porous aromatic framework (PAF) materials for practical applications, fabrication PAFs into membranes has emerged as a promising strategy. Herein, multifunctional composite membrane (PAF@BC) was developed by incorporating hydrophilic bacterial cellulose (BC) with PAF materials. The structural synergy between powders BC matrix creates interfacial gaps, enabling PAF@BC to achieve exceptional separation purification performance, alongside excellent reusability. exhibited high efficiency stability in intercepting both anionic cationic dyes. Additionally, leveraging intrinsic photocatalytic properties PAF, captured pollutants can be effectively degraded. Moreover, demonstrated outstanding iodine ion removal from aqueous solutions, achieving maximum filtration capacity 447.8 mg/g. In gas-phase efficiently intercepted vapor, 96% performance improvement compared pure membranes. This approach addresses prior limitations materials, such their hydrophobicity hindering effective interaction pollutants. show significant potential environmental remediation open new avenues versatile application diverse fields.

Language: Английский

Citations

0
Constructing ordered crystalline contamination layer for baicalin enrichment by macroporous ceramic membrane with high flux DOI

Qianlian Wu,

Yanyu Xiang,

Xin Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159988 - 159988

Published: Feb. 1, 2025

Language: Английский

Citations

0
PAF@BC composite membrane for multifunctional environmental Applications: Dye Separation, Degradation, and iodine Adsorption, interception DOI

Hongliang Lei,

Zhiyi Li, Jia Sun

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132546 - 132546

Published: March 1, 2025

Language: Английский

Citations

0
Polyamide-Crystalline Covalent Organic Framework Dual-Layer Nanofiltration Membrane with Improved Ion Selectivity DOI
Rahul Sampat Khandge, Thanh-Tin Nguyen, Zhiqin Qiang

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(22), P. 13877 - 13885

Published: Nov. 8, 2024

There is growing interest in designing nanofiltration (NF) membranes for selective separations. However, controlling the formation process of polyamide (PA) to achieve simultaneous improvements permeance and selectivity remains challenging. The use an interlayer has recently emerged as a promising strategy tackle this trade-off. Herein, nanoporous covalent organic framework (COF) interlayers were employed facilitate thin PA membrane layer. COF synthesized through counter-diffusion IP method, during which solvent catalyst tailored different extents crystallinity. made by conventional on these found show better performance than that pristine polymer support. In addition, crystalline COFs resulted layer featuring narrow pore size distribution high negative surface charge. resulting dual-layer exhibited enhanced NF performance, with superior rejection divalent salts (Na2SO4, 99.6%; MgSO4, 97.4%), mono/divalent (NaCl/Na2SO4, 137), water permeance. combined exceed those most reported membranes, making PA/crystalline NF-based separation.

Language: Английский

Citations

3