Back to Search
Start Over
Effects of ZIF-L Morphology on PI@PDA@PEI/ZIF-L Composite Membrane's Adsorption and Separation Properties for Heavy Metal Ions.
- Source :
- Polymers (20734360); Dec2023, Vol. 15 Issue 23, p4600, 14p
- Publication Year :
- 2023
-
Abstract
- Composite polymolecular separation membranes were prepared by combining multi-branched ZIF-L with high-porosity electrospinning nanofibers PI. Meanwhile, PDA and PEI were introduced into the membrane in order to improve its adhesion. The new membrane is called the "PI@PDA@PEI/ZIF-L-4" composite membrane. Compared with the PI@PDA@PEI/ZIF-8 composite membrane, the new membrane's filtration rates for heavy metal ions such as Cd<superscript>2+</superscript>, Cr<superscript>3+</superscript>, and Pb<superscript>2+</superscript> were increased by 7.0%, 6.6%, and 9.3%, respectively. Furthermore, the new membrane has a permeability of up to 1140.0 L·m<superscript>−2</superscript>·h<superscript>−1</superscript>·bar<superscript>−1</superscript>, and displayed a very stable performance after four repeated uses. The separation mechanism of the PI@PDA@PEI/ZIF-L composite membrane was analyzed further in order to provide a basis to support the production of separation membranes with a high barrier rate and high flux. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20734360
- Volume :
- 15
- Issue :
- 23
- Database :
- Complementary Index
- Journal :
- Polymers (20734360)
- Publication Type :
- Academic Journal
- Accession number :
- 174112629
- Full Text :
- https://doi.org/10.3390/polym15234600