Ion Transport Mechanism in the Sub-Nano Channels of Edge-Capping Modified Transition Metal Carbides/Nitride Membranes DOI Creative Commons
Yinan Li, Xiangmin Xu, Xiaofeng Fang

et al.

Separations, Journal Year: 2025, Volume and Issue: 12(4), P. 78 - 78

Published: March 28, 2025

Edge-capping modified MXene membranes with new channels created by lateral nanosheets are of great research significance. After introducing tripolyphosphate (STPP) to Ti edges Ti3C2Tx and fabricating the STPP-MXene edge-capping method, this investigated performance optimization mechanism STPP-modified in terms salt permeability (NaCl, Na2SO4, MgCl2, MgSO4) transmembrane energy barriers (Esalt) through concentration gradient permeation test. Experimental results demonstrated an approximately 1.86-fold enhancement flux (Js) compared membranes. The solution–diffusion model was also introduced evaluate solubility (Ks) diffusivity (Ds) during permeation. Furthermore, analysis revealed that STPP modification induced significantly larger reductions activation for magnesium salts (MgSO4: 55.1%; MgCl2: 47.4%) sodium (NaCl: 30.5%; Na2SO4: 30.9%). This phenomenon indicated weakened electrostatic interactions between high-valent Mg2+ membrane edges, whereas limited charge density Na+ resulted relatively modest optimization. highlight contribution capping on adjacent nanosheets. Therefore, increased transportation rate cations across more than twice, thus advancing application 2D resource recovery.

Language: Английский

Efficient activation of peroxymonosulfate by sulfur-coordinated iron-based two-dimensional composite membrane (S-Fe@G) via sulfur doping and nanoconfined catalysis DOI

Wenwa Weng,

Jiawei Hou,

Nigel Graham

et al.

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123984 - 123984

Published: March 1, 2025

Language: Английский

Citations

0
Ion Transport Mechanism in the Sub-Nano Channels of Edge-Capping Modified Transition Metal Carbides/Nitride Membranes DOI Creative Commons
Yinan Li, Xiangmin Xu, Xiaofeng Fang

et al.

Separations, Journal Year: 2025, Volume and Issue: 12(4), P. 78 - 78

Published: March 28, 2025

Edge-capping modified MXene membranes with new channels created by lateral nanosheets are of great research significance. After introducing tripolyphosphate (STPP) to Ti edges Ti3C2Tx and fabricating the STPP-MXene edge-capping method, this investigated performance optimization mechanism STPP-modified in terms salt permeability (NaCl, Na2SO4, MgCl2, MgSO4) transmembrane energy barriers (Esalt) through concentration gradient permeation test. Experimental results demonstrated an approximately 1.86-fold enhancement flux (Js) compared membranes. The solution–diffusion model was also introduced evaluate solubility (Ks) diffusivity (Ds) during permeation. Furthermore, analysis revealed that STPP modification induced significantly larger reductions activation for magnesium salts (MgSO4: 55.1%; MgCl2: 47.4%) sodium (NaCl: 30.5%; Na2SO4: 30.9%). This phenomenon indicated weakened electrostatic interactions between high-valent Mg2+ membrane edges, whereas limited charge density Na+ resulted relatively modest optimization. highlight contribution capping on adjacent nanosheets. Therefore, increased transportation rate cations across more than twice, thus advancing application 2D resource recovery.

Language: Английский

Citations

0