A5057485293- Covalent Organic Framework Applications
- Nanopore and Nanochannel Transport Studies
- Fuel Cells and Related Materials
- Membrane Separation Technologies
- Membrane-based Ion Separation Techniques
- Metal-Organic Frameworks: Synthesis and Applications
- Luminescence and Fluorescent Materials
- Advanced Photocatalysis Techniques
- Adsorption and biosorption for pollutant removal
- Nuclear Materials and Properties
- Membrane Separation and Gas Transport
- Chemical Synthesis and Characterization
- Per- and polyfluoroalkyl substances research
- Analytical Chemistry and Sensors
- Radioactive element chemistry and processing
- Gas Sensing Nanomaterials and Sensors
- Advanced Battery Materials and Technologies
University of North Texas
2021-2024
Victor (Japan)
2022
Zhejiang University
2021-2022
Abstract Herein, we report a strategy to construct highly efficient perfluorooctanoic acid (PFOA) adsorbents by installing synergistic electrostatic/hydrophobic sites onto porous organic polymers (POPs). The constructed model material of PAF-1-NDMB (NDMB = N,N-dimethyl-butylamine) demonstrates an exceptionally high PFOA uptake capacity over 2000 mg g −1 , which is 14.8 times enhancement compared with its parent PAF-1. And it 32.0 and 24.1 higher than benchmark materials DFB-CDP...
It has long been a challenge to fabricate angstrom-sized functional pores for mimicking the function of biological channels afford selective transmembrane transport. In this study, we describe facile strategy incorporate ionic elements into using de novo encapsulation charged dye molecules during interface polymerization three-dimensional covalent organic framework (3D COF). We demonstrate that approach is tailorable as it enables control over both type and content guest thus allows...
Abstract Thermal sensation, which is the conversion of a temperature stimulus into biological response, basis fundamental physiological processes that occur ubiquitously in all organisms from bacteria to mammals. Significant efforts have been devoted fabricating artificial membranes can mimic delicate functions nature; however, design bionic thermometer remains its infancy. Herein, we report nanofluidic membrane based on an ionic covalent organic framework (COF) capable intelligently...
A vast amount of energy can be extracted from the untapped low-grade heat sources below 100 °C and Gibbs free salinity gradients. Therefore, a process for simultaneous direct conversion these energies into electricity using permselective membranes was developed in this study. These screen charges ion flux driven by combined temperature gradients to achieve thermo-osmotic conversion. Increasing charge density pore channels enhanced permselectivity conductance, leading larger osmotic voltage...
Mining uranium from seawater is highly desirable for sustaining the increasing demand nuclear fuel; however, access to this unparalleled reserve has been limited by competitive adsorption of a wide variety concentrated competitors, especially vanadium. Herein, we report creation series uranyl-specific "hooks" and decoration them into nanospace porous organic polymers afford nanotraps extraction. Manipulating relative distances angles amidoxime moieties in ligands enabled that feature...
Increasing the charge density of ionic membranes is believed to be beneficial for generating high output osmotic energy. Herein, we systematically investigated how membrane populations affect permselectivity by decoupling their effects from impact pore structure using a multivariate strategy constructing covalent-organic-framework membranes. The thermo-osmotic energy conversion efficiency improved increasing density, affording 210 W m-2 with temperature gradient 40 K. However, this...
Concentration polarization (CP) is a ubiquitous phenomenon in membrane separation that possibly responsible for the decline overall efficiency. However, no quantitative connection between key parameters and degree of CP has been established. In this study, variation permselectivity during was comprehensively elucidated using isostructural covalent organic framework (COF) membranes with varied charge densities. A volcano-like plot output power density against population obtained, contrast to...
Abstract Uncontrolled mixing remains the primary hurdle impeding practical application of reverse electrodialysis (RED) to harvest Gibbs free energy in form salinity gradients. Improving permselectivity membranes is therefore essential, with ionic density being one most critical factors. Herein, it systematically investigated how charge population nanofluidic affects separation and consequently accompanying power density. To establish this relationship, effect decoupled from impact pore...
Open AccessCCS ChemistryRESEARCH ARTICLE1 Nov 2021Bionic Thermosensation Inspired Temperature Gradient Sensor Based on Covalent Organic Framework Nanofluidic Membrane with Ultrahigh Sensitivity Weipeng Xian†, Pengcheng Zhang†, Changjia Zhu, Xiuhui Zuo, Shengqian Ma and Qi Sun Xian† Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College Biological Engineering, University, Hangzhou 310027 †W. Xian P. Zhang contributed equally to this work.Google...
Abstract Water pollution is a growing threat to humanity due the pervasiveness of contaminants in water bodies. Significant efforts have been made separate these hazardous components purify polluted through various methods. However, conventional remediation methods suffer from limitations such as low uptake capacity or selectivity, and current quality standards cannot be met. Recently, advanced porous materials (APMs) shown promise improved segregation compared traditional selectivity. These...
Abstract The evolution of porous membranes has revitalized their potential application in sustainable osmotic‐energy conversion. However, the performance multiporous deviates significantly from linear extrapolation single‐pore membranes, primarily due to occurrence ion‐concentration polarization (ICP). This study proposes a robust strategy overcome this challenge by incorporating photoelectric responsiveness into permselective membranes. By introducing light‐induced electric fields within...
Abstract A vast amount of energy can be extracted from the untapped low‐grade heat sources below 100 °C and Gibbs free salinity gradients. Therefore, a process for simultaneous direct conversion these energies into electricity using permselective membranes was developed in this study. These screen charges ion flux driven by combined temperature gradients to achieve thermo‐osmotic conversion. Increasing charge density pore channels enhanced permselectivity conductance, leading larger osmotic...
Nature seamlessly integrates multiple functions for energy conversion, utilizing solar and salinity gradients as the primary drivers ionic power generation. The creation of artificial membranes capable finely controlling ion diffusion within nanoscale channels, driven by diverse forces, remains a challenging endeavor. In this study, we present an innovative approach: covalent-organic framework (COF) membrane constructed using chromophoric porphyrin units. incorporation groups these...
Abstract The development of efficient thermo-osmotic energy conversion devices has fascinated scientists and engineers for several decades in terms satisfying the growing demand. fabrication ionic membranes with a high charge population is known to be critical factor design high-performance power generators achieving permselectivity and, consequently, extraction efficiency. Herein, we experimentally demonstrated that efficiency was improved by increasing membrane density; however, this...