Details
| Original language | English |
|---|---|
| Article number | e202217378 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 62 |
| Issue number | 17 |
| Early online date | 24 Jan 2023 |
| Publication status | Published - 5 Apr 2023 |
Abstract
Graphdiynes (GDYs), two-dimensional graphene-like carbon systems, are considered as potential advanced membrane material due to their unique physicochemical features. Nevertheless, the scale-up of integrated GDY membranes is technologically challenging, and most studies remain at the theoretical stage. Herein, we report a simple and efficient alkynylated surface-mediated strategy to prepare hydrogen-substituted graphdiyne (HsGDY) membranes on commercial alumina tubes. Surface alkynylation initiates an accelerated surface-confined coupling reaction in the presence of a copper catalyst and facilitates the nanoscale epitaxial lateral growth of HsGDY. A continuous and ultra-thin HsGDY membrane (∼100 nm) can be produced within 15 min. The resulting membranes exhibit outstanding molecular sieving together with excellent water permeances (ca. 1100 L m−2 h−1 MPa−1), and show a long-term durability in cross-flow nanofiltration, owing to the superhydrophilic surface and hydrophobic pore walls.
Keywords
- graphdiyne, membrane, molecular permselectivity, nanofiltration, surface-mediated strategy
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- General Chemistry
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In: Angewandte Chemie - International Edition, Vol. 62, No. 17, e202217378, 05.04.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Ultra-Fast Preparation of Large-Area Graphdiyne-Based Membranes via Alkynylated Surface-Modification for Nanofiltration
AU - Yang, Xingda
AU - Qu, Zhou
AU - Li, Sen
AU - Peng, Manhua
AU - Li, Chunxi
AU - Hua, Ruimao
AU - Fan, Hongwei
AU - Caro, Jürgen
AU - Meng, Hong
N1 - Funding Information: This study was supported by the National Key Research & Development Program of China (2021YFB3801301), National Natural Science Foundation of China (Program No. 22108010) and the Fundamental Research Funds for the Central Universities (buctrc202135).
PY - 2023/4/5
Y1 - 2023/4/5
N2 - Graphdiynes (GDYs), two-dimensional graphene-like carbon systems, are considered as potential advanced membrane material due to their unique physicochemical features. Nevertheless, the scale-up of integrated GDY membranes is technologically challenging, and most studies remain at the theoretical stage. Herein, we report a simple and efficient alkynylated surface-mediated strategy to prepare hydrogen-substituted graphdiyne (HsGDY) membranes on commercial alumina tubes. Surface alkynylation initiates an accelerated surface-confined coupling reaction in the presence of a copper catalyst and facilitates the nanoscale epitaxial lateral growth of HsGDY. A continuous and ultra-thin HsGDY membrane (∼100 nm) can be produced within 15 min. The resulting membranes exhibit outstanding molecular sieving together with excellent water permeances (ca. 1100 L m−2 h−1 MPa−1), and show a long-term durability in cross-flow nanofiltration, owing to the superhydrophilic surface and hydrophobic pore walls.
AB - Graphdiynes (GDYs), two-dimensional graphene-like carbon systems, are considered as potential advanced membrane material due to their unique physicochemical features. Nevertheless, the scale-up of integrated GDY membranes is technologically challenging, and most studies remain at the theoretical stage. Herein, we report a simple and efficient alkynylated surface-mediated strategy to prepare hydrogen-substituted graphdiyne (HsGDY) membranes on commercial alumina tubes. Surface alkynylation initiates an accelerated surface-confined coupling reaction in the presence of a copper catalyst and facilitates the nanoscale epitaxial lateral growth of HsGDY. A continuous and ultra-thin HsGDY membrane (∼100 nm) can be produced within 15 min. The resulting membranes exhibit outstanding molecular sieving together with excellent water permeances (ca. 1100 L m−2 h−1 MPa−1), and show a long-term durability in cross-flow nanofiltration, owing to the superhydrophilic surface and hydrophobic pore walls.
KW - graphdiyne
KW - membrane
KW - molecular permselectivity
KW - nanofiltration
KW - surface-mediated strategy
UR - http://www.scopus.com/inward/record.url?scp=85149314920&partnerID=8YFLogxK
U2 - 10.1002/anie.202217378
DO - 10.1002/anie.202217378
M3 - Article
C2 - 36692831
AN - SCOPUS:85149314920
VL - 62
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 17
M1 - e202217378
ER -