Effect of Reaction Interface Structure on the Morphology and Performance of Thin-Film Composite Membrane DOI

Subo Xu,

Pin Zhao, Hao Liu

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 59(1), P. 902 - 912

Published: Dec. 31, 2024

Thin-film composite (TFC) membrane has been extensively utilized and investigated for its excellent properties. Herein, we have constructed an active layer (AL) containing cave-like structures utilizing large meniscus interface. Furthermore, the impact of interface structure on growth process, morphology, effective surface area AL fully explored with assistance sodium dodecyl benzenesulfonate (SDBS). The SDBS-induced nanobubbles continuously facilitated migration top toward upper space. During this sunken in initially exhibited increase then a decrease. Additionally, larger significantly enhanced delayed rise structures. Therefore, TFC membrane, substrate pore size 1.00 μm assisted by 0.30 mM SDBS, remarkable flux enhancement (>63%) reduced reverse salt (>35%) forward osmosis system. Moreover, roughness factor was introduced to directly quantify area, which had good correlation water flux. Our findings demonstrated significant potential substrates overcome inherent limitations membrane.

Language: Английский

Lignin alkali regulated interfacial polymerization towards ultra-selective and highly permeable nanofiltration membrane DOI Creative Commons
Wentian Zhang, Shanshan Zhao, Jing Li

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 3, 2025

Thin-film composite polyamide (TFC PA) membranes hold promise for energy-efficient liquid separation, but achieving high permeance and precise separation membrane via a facile approach that is compatible with present manufacturing line remains great challenge. Herein, we demonstrate the use of lignin alkali (LA) derived from waste paper pulp as an aqueous phase additive to regulate interfacial polymerization (IP) process performance nanofiltration (NF) membrane. Various characterizations molecular dynamics simulations revealed LA can promote diffusion partition monomer piperazine (PIP) molecules into organic their uniform dispersion on substrate, accelerating IP reaction promoting greater instabilities, thus endowing formation TFC NF ultrathin, highly cross-linked, crumpled PA layer. The optimal exhibited remarkable water 26.0 L m-2 h-1 bar-1 Cl-/SO42- selectivity 191.0, which superior state-of-the-art membranes. This study provides cost-effective scalable strategy fabricating ultra-selective permeable ion-ion small compounds removal. Achieving in thin-film challenging. Here, authors

Language: Английский

Citations

7
Regulation of polyamide reverse osmosis membrane structure by nanobubbles: Unraveling the mystery of structure-property relationships DOI
Houkang Pu,

Hanjing Xue,

Xiaojuan Wang

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118681 - 118681

Published: Feb. 1, 2025

Language: Английский

Citations

0
Regulation of the polyamide network structure with adamantane-1,3-diamine to adjust the selectivity of SWRO membranes DOI

Zhaojing Jing,

Xinxia Tian,

Huibin Geng

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118792 - 118792

Published: March 1, 2025

Language: Английский

Citations

0
Gradient or no gradient: Spatial hydrostatic pressure distributions in bilayer thin-film composite membranes DOI Creative Commons

Ian Keen Koo,

Meng Nan Chong, K.B. Goh

et al.

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 124023 - 124023

Published: April 1, 2025

Language: Английский

Citations

0
Nanofiltration and reverse osmosis technologies for disinfection by-product removal DOI
Lei Wang, Chuyang Y. Tang, Yunxia Hu

et al.

Nature Water, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Language: Английский

Citations

0
Breaking the trade-off between lithium purity and lithium recovery: A comprehensive mathematical modeling based on membrane structure-property-performance relationships DOI Creative Commons
Fengrui Yang,

M.S. Yong,

Zhikao Li

et al.

Water Research, Journal Year: 2025, Volume and Issue: 281, P. 123678 - 123678

Published: April 24, 2025

The application of nanofiltration (NF) membranes for resource recovery, particularly lithium (Li) extraction from high magnesium (Mg) brines, is a rapidly growing research area. However, the trade-off between Li+ purity and recovery remains challenging. In our study, we extend widely adopted Donnan Steric Pore Model with Dielectric Exclusion (DSPM-DE) to analyze membrane structure-property-performance relationships at process scale. For first time, quantify how intrinsic parameters (e.g., pore size, effective thickness, charge density) affect under module-scale processes. Under this framework, demonstrate that electrically neutral positively charged outperform negatively membranes, albeit cost slightly higher required hydraulic pressure. Notably, smaller size yet water permeance (40-80 L m-2 h-1 bar-1) are preferred, which could simultaneously achieve excellent (∼98 %) (∼93 in single-pass process, effectively overcoming purity-recovery correlation. We further negative rejection plays crucial role correlation by significantly increasing recovery. Nevertheless, poor system flux distribution inadvertently observed regions where strong occurs, highlighting need careful consideration balance stability performances. Our study identifies critical achieving optimal performance scale, offering fundamental insights designing high-performance

Language: Английский

Citations

0
Crumpled polyamide membranes templated by macroporous scaffolds for ultra-permeable nanofiltration DOI
Hao Zhang, Fei Xie, Zhe Yang

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118958 - 118958

Published: April 1, 2025

Language: Английский

Citations

0
Sodium dodecylbenzene sulfonate (SDBS) assisted interfacial polymerization on a macro-porous nanofibrous support layer to prepare high-performance forward osmosis membranes DOI
Cong Ma,

Mengyuan Su,

Zhaoyang Cheng

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118989 - 118989

Published: May 1, 2025

Language: Английский

Citations

0
Assessment of permeance and selectivity of thin-film composite polyamide membranes for diverse applications DOI
Li Long, Chenyue Wu, Senlin Shao

et al.

Nature Water, Journal Year: 2025, Volume and Issue: unknown

Published: May 12, 2025

Language: Английский

Citations

0
Effect of Reaction Interface Structure on the Morphology and Performance of Thin-Film Composite Membrane DOI

Subo Xu,

Pin Zhao, Hao Liu

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 59(1), P. 902 - 912

Published: Dec. 31, 2024

Thin-film composite (TFC) membrane has been extensively utilized and investigated for its excellent properties. Herein, we have constructed an active layer (AL) containing cave-like structures utilizing large meniscus interface. Furthermore, the impact of interface structure on growth process, morphology, effective surface area AL fully explored with assistance sodium dodecyl benzenesulfonate (SDBS). The SDBS-induced nanobubbles continuously facilitated migration top toward upper space. During this sunken in initially exhibited increase then a decrease. Additionally, larger significantly enhanced delayed rise structures. Therefore, TFC membrane, substrate pore size 1.00 μm assisted by 0.30 mM SDBS, remarkable flux enhancement (>63%) reduced reverse salt (>35%) forward osmosis system. Moreover, roughness factor was introduced to directly quantify area, which had good correlation water flux. Our findings demonstrated significant potential substrates overcome inherent limitations membrane.

Language: Английский

Citations

2