Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Constructing oriented crystalline covalent organic framework (COF) membranes with controllable thickness for water purification is highly desirable. Herein, we present a simple and universal protocol to prepare high-quality COF membranes on the inner wall of a glass vessel using a diffusion/modulator dual-mediated solid-liquid/vapor interfacial synthesis strategy. By meticulous control of solvent and temperature, a thin supersaturated spreading liquid layer was formed on the glass wall surface and served as a confined microreactor for incubating crystal nuclei. This induced the aniline-modulated solid-liquid/vapor interfacial exchange reaction and upward growth of a highly ordered COF membrane. The experiments and theoretical simulations revealed the underlying mechanisms of solid-liquid/vapor interfacial nucleation, growth and crystallization. Using this strategy, we created 13 types of new, free-standing, imine-linked COF membranes with exceptional performances in crystallinity, porosity, stability, processability and adsorption capacity. As an application demonstration, a COF membrane-filled filter was coupled with high-performance liquid chromatography system for the automated removal of multitarget liquid-crystal monomers in real water samples (removal efficiency≥96 %). This study enriches the synthesis toolboxes of COF membranes and broadens their application scopes.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/anie.202421555 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Diffusion/Modulator Dual-Mediated Solid-Liquid/Vapor Interfacial Synthesis of Crystalline Covalent Organic Framework Membranes.
Angew Chem Int Ed Engl
March 2025
National Key Laboratory of Green Pesticide, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, China.
Constructing oriented crystalline covalent organic framework (COF) membranes with controllable thickness for water purification is highly desirable. Herein, we present a simple and universal protocol to prepare high-quality COF membranes on the inner wall of a glass vessel using a diffusion/modulator dual-mediated solid-liquid/vapor interfacial synthesis strategy. By meticulous control of solvent and temperature, a thin supersaturated spreading liquid layer was formed on the glass wall surface and served as a confined microreactor for incubating crystal nuclei.
View Article and Find Full Text PDFLiquid-Superspreading-Boosted High-Performance Jet-Flow Boiling for Enhancement of Phase-Change Cooling.
Adv Mater
June 2023
Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
Enhanced boiling heat transfer via surface engineering is a topic of general interest for its great demand in industrial fields. However, as a dynamic interfacial phenomenon, a deep understanding of its process and mechanism, including liquid re-wetting and vapor departure, is still challenging. Herein, a micro-/nanostructured Cu surface containing a periodic microgroove/pyramid array with rich nanowrinkles is designed, where superspreading (<134.
View Article and Find Full Text PDFDynamic Mitigation Mechanisms of Rime Icing with Propagating Surface Acoustic Waves.
Langmuir
September 2022
Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, U.K.
Ice accretion on economically valuable and strategically important surfaces poses significant challenges. Current anti-/de-icing techniques often have critical issues regarding their efficiency, convenience, long-term stability, or sustainability. As an emerging ice mitigation strategy, the thin-film surface acoustic wave (SAW) has great potentials due to its high energy efficiency and effective integration on structural surfaces.
View Article and Find Full Text PDFDirect Imaging of Superwetting Behavior on Solid-Liquid-Vapor Triphase Interfaces.
Adv Mater
December 2017
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China.
A solid-liquid-vapor interface dominated by a three-phase contact line usually serves as an active area for interfacial reactions and provides a vital clue to surface behavior. Recently, direct imaging of the triphase interface of superwetting interfaces on the microscale/nanoscale has attracted broad scientific attention for both theoretical research and practical applications, and has gradually become an efficient and intuitive approach to explore the wetting behaviors of various multiphase interfaces. Here, recent progress on characterizing the solid-liquid-vapor triphase interface on the microscale/nanoscale with diverse types of imaging apparatus is summarized.
View Article and Find Full Text PDFDirect insight into the three-dimensional internal morphology of solid-liquid-vapor interfaces at microscale.
Angew Chem Int Ed Engl
April 2015
Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191 (P.R. China).
Solid-liquid-vapor interfaces dominated by the three-phase contact line, usually performing as the active center in reactions, are important in biological and industrial processes. In this contribution, we provide direct three-dimensional (3D) experimental evidence for the inside morphology of interfaces with either Cassie or Wenzel states at micron level using X-ray micro-computed tomography, which allows us to accurately "see inside" the morphological structures and quantitatively visualize their internal 3D fine structures and phases in intact samples. Furthermore, the in-depth measurements revealed that the liquid randomly and partly located on the top of protrusions on the natural and artificial superhydrophobic surfaces in Cassie regime, resulting from thermodynamically optimal minimization of the surface energy.
View Article and Find Full Text PDF