Self‐Aggregation Control of Porphyrin for Enhanced Selective Covalent Organic Network Membranes DOI Creative Commons
Wang Ye, Keizo Nakagawa, Kecheng Guan

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 3, 2024

Abstract Covalent organic networks (CONs) are considered ideal for precise molecular separation compared with traditional polymer membranes because their pores have a sharp weight cut‐off and robust structure. However, challenges remain regard to tuning as prerequisite facile membrane fabrication defect‐free layer. Herein, highly conjugated amino‐porphyrin is used exploited its tunable stacking behavior fabricate porphyrin‐based polyamide CONs ordered structures through interfacial polymerization acyl chlorides. Controlling the self‐aggregation of porphyrin conformation chlorides can create different covalent networks. Acid‐triggered protonation offsets reduce pore in network from mesopore micropore, enabling selective molecule transport. Furthermore, chloride ligands control interlayer bonding CONs. Accordingly, tailored diameters (0.48–0.78 nm) confirmed by rejections performance stability over 25 days operation, well under various conditions. This study leverages chemistry CON layer significantly lower (< 330 Da) than previously reported (>800 Da). will pave way development topological membranes.

Язык: Английский

Rapid and Precise Molecular Nanofiltration Using Ultra‐Thin‐Film Membranes Derived from 6,6′‐Dihydroxy‐2,2′‐biphenyldiamine DOI
Youcai Chen,

Wenxiong Shi,

Shao‐Lu Li

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июнь 20, 2024

Abstract A key challenge in efficient molecular separation is fabricating large‐scale, highly selective polymeric membranes with precise pore control at the scale. Herein, a new contorted monomer 6,6′‐dihydroxy‐2,2′‐biphenyldiamine (DHBIPDA) introduced as building block to generate cross‐linked, ultra‐thin microporous nanofilms (sub‐10 nm) via interfacial polymerization, enabling rapid, and nanofiltration. Using diacyl chloride (TPC) cross‐linker instead of trimesoyl (TMC) significantly reduces sizes within achieves narrower distribution due semi‐crystalline structure. The film structures are confirmed using comprehensive characterization techniques including wide‐angle X‐ray scattering (WAXS), diffraction (XRD), positron annihilation lifetime spectroscopy (PALS), CO 2 adsorption analysis, molecular‐scale simulation. DHBIPDA/TPC DHBIPDA/TMC achieve methanol permeance values up 16.4 15.1 LMH bar −1 coupled weight cutoffs (MWCOs) low 283 306 Da, respectively. membrane demonstrates both higher selectivity compared its relatively disordered counterpart DHBIPDA/TMC, consistent data. DHBIPDA‐derived efficiently separates dye mixtures similar weights enables effective recycling organometallic homogeneous catalysts, suggesting potential for industrial applications.

Язык: Английский

Процитировано

13
Impact of acyl chloride monomers on the structure and performance of polyamide nanofiltration membranes for lithium-magnesium separation DOI
Jin Wang,

Wubin Wang,

Yufei Yan

и другие.

Journal of Membrane Science, Год журнала: 2025, Номер unknown, С. 123858 - 123858

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1
Microporous and functional group Co-designed polyesteramide membranes for efficient and broad-spectrum organic solvent nanofiltration DOI Creative Commons
Zhongfan Liu, Yuxuan Sun,

Heguo Han

и другие.

Advanced Membranes, Год журнала: 2024, Номер 4, С. 100098 - 100098

Опубликована: Янв. 1, 2024

Organic solvent nanofiltration (OSN) is an emerging energy-efficient separations technology, which urgently requires easily processable OSN membranes with high selectivity and broad-spectrum organic applicability to facilitate enhanced industrial applications. Herein, we describe the preparation of microporous polyesteramide (PEA) through interfacial polymerization (IP) between amino-diphenol monomers trimesoyl chloride (TMC) on a poly(ether ether ketone) (PEEK) support. The crosslinked network structures large twisted enhance microporosity PEA membranes, leading significant improvement in permeance while maintaining selectivity. optimized membrane demonstrates exceptional for acetone (21 L·m-2·h-1·bar-1) methanol (14.3 L·m-2·h-1·bar-1), molecular weight cut-off 296 g·mol-1. Additionally, PEA/APH-diphenol exhibits ultrafast nonpolar toluene (8.3 owing introduction number ester groups. Overall, prepared molecular-level structure design IP possess enormous application potential their performance

Язык: Английский

Процитировано

8
Aminosilane modification of MOF-74 improves the organic solvent nanofiltration performance of AS-MOF-74 (M)/P84 composite membrane DOI

Biadglign Ayalneh Habte,

Chien‐Chieh Hu, Ying‐Ling Liu

и другие.

Journal of Membrane Science, Год журнала: 2025, Номер 718, С. 123682 - 123682

Опубликована: Янв. 5, 2025

Язык: Английский

Процитировано

0
Bioderived Polyarylester Nanofilms from Innovative Plant Materials for High-Efficient Organic Solvent Nanofiltration DOI
Zihao Liu, Yingjie Huang, Yanfeng Lv

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(9), С. 14477 - 14487

Опубликована: Фев. 14, 2025

The successful realization of thin film composite (TFC) organic solvent nanofiltration (OSN) membranes with high permeability and small solute selectivity for solute–solute separation to purify drugs in complex solution environments remains challenging the pharmaceutical industry. Here, we present preparation cross-linked TFC OSN via interfacial polymerization (IP) utilizing phlorotannin, a plant-derived biomass phenolic compound, as promising aqueous phase monomer. Benefiting from presence multiple cross-linking sites twisted rigid structure excellent molecular were successfully fabricated. This allowed straightforward purification active ingredients intermediates. demonstrated remarkable stability over extended periods operation adaptability diverse array environments, making them highly option use fine chemicals, biopharmaceuticals, other fields.

Язык: Английский

Процитировано

0
Constructing reverse osmosis membranes with an excellent anti-fouling performance via a highly effective photoinitiated radical polymerization strategy DOI
Mengxin Li, Xue Yang,

Shibo Bai

и другие.

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 132632 - 132632

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Polyamide membranes with rigid twisted tetraamine monomers for efficient organic solvent nanofiltration DOI

Chenlu Liu,

Xiaoting Feng, Keming Zhang

и другие.

Journal of Membrane Science, Год журнала: 2025, Номер 726, С. 124085 - 124085

Опубликована: Апрель 8, 2025

Язык: Английский

Процитировано

0
High-performance microporous organic solvent nanofiltration composite membrane prepared from a contorted maleimidoanthracene biscatechol monomer DOI
Shao‐Lu Li,

Qiyu Duan,

Mengfan Wang

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер 512, С. 162706 - 162706

Опубликована: Апрель 16, 2025

Язык: Английский

Процитировано

0
Self‐Aggregation Control of Porphyrin for Enhanced Selective Covalent Organic Network Membranes DOI Creative Commons
Wang Ye, Keizo Nakagawa, Kecheng Guan

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 3, 2024

Abstract Covalent organic networks (CONs) are considered ideal for precise molecular separation compared with traditional polymer membranes because their pores have a sharp weight cut‐off and robust structure. However, challenges remain regard to tuning as prerequisite facile membrane fabrication defect‐free layer. Herein, highly conjugated amino‐porphyrin is used exploited its tunable stacking behavior fabricate porphyrin‐based polyamide CONs ordered structures through interfacial polymerization acyl chlorides. Controlling the self‐aggregation of porphyrin conformation chlorides can create different covalent networks. Acid‐triggered protonation offsets reduce pore in network from mesopore micropore, enabling selective molecule transport. Furthermore, chloride ligands control interlayer bonding CONs. Accordingly, tailored diameters (0.48–0.78 nm) confirmed by rejections performance stability over 25 days operation, well under various conditions. This study leverages chemistry CON layer significantly lower (< 330 Da) than previously reported (>800 Da). will pave way development topological membranes.

Язык: Английский

Процитировано

0