E-resources
Peer reviewed
-
Xue, Yu-Ren; Ma, Zhao-Yu; Liu, Chang; Zhu, Cheng-Ye; Wu, Jian; Xu, Zhi-Kang
Separation and purification technology, 04/2023, Volume: 310Journal Article
Display omitted •Polyamide nanofilms around 10 nm are facilely synthesized by a scalable process.•A sequential process of coating-spraying-interfacial polymerization is developed.•Organic solvent consumption reduces by 99 % compared with conventional process.•The polyamide nanofilms represent high performance as desalination membranes. Thin film composite (TFC) membranes composed of polyamide nanofilms and porous substrates have received enhancing attention to desalination for overcoming the nexus of serious scarcity and huge demand for fresh water. Up to now, it is still a big challenge to avoid the complex interference of the porous substrates on the interfacial polymerization of amine and acyl chloride monomers for synthesizing polyamide nanofilms at lower carbon footprint. Herein, we report a sequential process of blade coating–spraying–interfacial polymerization for scalable preparation of polyamide nanofilms that shine in high-performance desalination. Our sequential process consists of 1) blade coating the viscous solution of water/glycerol/m-phenylenediamine (MPD) to form an anti-interference aqueous film, 2) spaying the organic solution of Isopar H/trimesoyl chloride (TMC) under a controlled and economical way onto the water/glycerol/MPD film, and 3) conducting the interfacial polymerization of MPD and TMC at the constructed organic-aqueous interface. The whole process highly reduces the utilization of organic solvents to meet the demands of lower carbon footprint. The synthesized polyamide nanofilms exhibit extremely low roughness and 10 nm thickness in an area larger than 200 cm2, which can be composited with various porous substrates. The as-prepared TFC membranes represent a high desalination performance of water permeance of 1.89 L m−2 h−1 bar−1 with 97.4% NaCl rejection. Our strategy broadens the way to large-scale synthesis of polyamide nanofilms for high-efficiency desalination membranes.
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.