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

и другие.

Separations, Год журнала: 2025, Номер 12(4), С. 78 - 78

Опубликована: Март 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.

Язык: 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

и другие.

Journal of Membrane Science, Год журнала: 2025, Номер unknown, С. 123984 - 123984

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

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

и другие.

Separations, Год журнала: 2025, Номер 12(4), С. 78 - 78

Опубликована: Март 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.

Язык: Английский

Процитировано

0