Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Membrane technology is an important component of resource recovery. Covalent organic frameworks (COFs) with inherent long-range ordered structure and permanent porosity are ideal materials for fabricating advanced membrane. Zwitterionic COFs have unique features beyond single ionic COFs containing anions or cations. Here, a zwitterionic colloidal 2D-COF (TpPa-Py) is synthesized via a single-phase method. ultrathin zwitterionic COF membranes are fabricated via a facile blade-coating method. Experimental and molecular dynamics simulation results showed that due to the unique amphiphilic nature of the TpPa-Py, the TpPa-Py membrane exhibits high level permeance and rejection of both positively and negatively charged dyes. Moreover, the TpPa-Py membrane exhibits excellent dye/dye and dye/salt separation performance. The selectivity factors were 89 for the separation of acid blue and rhodamine B, and 47.8 for the separation of methyl blue and NaCl. This work provides a promising solution for the development of high-performance membranes tailored for resource recovery of dye wastewater, addressing a critical need in water treatment.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.watres.2024.123073 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Antifreezing Ultrathin Bioionic Gel-Based Wearable System for Artificial Intelligence-Assisted Arrhythmia Diagnosis in Hypothermia.
ACS Nano
March 2025
Research Center for Translational Medicine, Medical Innovation Center and State Key Laboratory of Cardiology, Shanghai East Hospital; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai 200120, China.
Cardiovascular disease (CAD) is a major global public health issue, with mortality rates being significantly impacted by cold temperatures. Stable and reliable electrocardiogram (ECG) monitoring in cold environments is crucial for early detection and treatment of CAD. However, existing skin sensor struggle to balance freeze resistance, breathability, flexibility, conductivity and adhesion at cold temperatures.
View Article and Find Full Text PDFUltrathin zwitterionic COF membranes from colloidal 2D-COF towards precise molecular sieving.
Water Res
April 2025
College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China. Electronic address:
Membrane technology is an important component of resource recovery. Covalent organic frameworks (COFs) with inherent long-range ordered structure and permanent porosity are ideal materials for fabricating advanced membrane. Zwitterionic COFs have unique features beyond single ionic COFs containing anions or cations.
View Article and Find Full Text PDFInhibition of biofouling by in-situ grown zwitterionic hydrogel nanolayer on membrane surface in ultralow-pressurized ultrafiltration process.
Water Res
April 2024
State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
Article Synopsis
- Researchers developed an ultrathin zwitterionic hydrogel nanolayer on polysulfone ultrafiltration membranes to improve surface water purification while addressing membrane fouling and energy efficiency.
- The modified membranes exhibited enhanced resistance to biological fouling from substances like bovine serum albumin and harmful bacteria, outperforming standard membranes through both foulant repulsion and antimicrobial properties.
- In practical applications, the hydrogel layer led to a significant increase in dissolved organic carbon removal and water flow stability, suggesting a promising method for controlling biofouling in low-energy water treatment processes.
Ultrathin Water-Responsive Zwitterionic Hydrogel Brush Coatings for Long-Term Corrosion Protection.
ACS Appl Mater Interfaces
January 2024
State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
Preventing metal corrosion has usually been associated with water-repellent coatings that inhibit the penetration of aggressive chloride ions. Contrary to this conventional wisdom, we engineered ultrathin superhydrophilic zwitterionic hydrogel brushes rooted in a nanoporous anodic aluminum oxide (AAO) substrate that effectively hampered the adsorption of hydrated chloride ions (Cl·HO) on the Al alloy surface. The hydrogel brush coating enhanced corrosion resistance by 3 orders of magnitude, with corrosion current density declining from 1.
View Article and Find Full Text PDFAchieving superior anticoagulation of endothelial membrane mimetic coating by heparin grafting at zwitterionic biocompatible interfaces.
Int J Biol Macromol
February 2024
Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xian 710127, Shaanxi, PR China; Institute of Materials Science and New Technology, Northwest University, Xian 710127, Shaanxi, China. Elec
Thrombosis and bleeding are common complications of blood-contacting medical device therapies. In this work, an endothelium membrane mimetic coating (PMPCC/Hep) has been created to address these challenges. The coating is fabricated by multi-point anchoring of a phosphorylcholine copolymer (poly-MPC-co-MSA, PMPCC) with carboxylic side chains and end-group grafting of unfractionated heparin (Hep) onto polydopamine precoated blood-contacting material surfaces.
View Article and Find Full Text PDF