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Preparation and characterization of N,O-carboxymethyl chitosan/Polysulfone composite nanofiltration membrane crosslinked with epichlorohydrin
- Source :
-
Desalination . Dec2008, Vol. 233 Issue 1-3, p147-156. 10p. - Publication Year :
- 2008
-
Abstract
- Abstract: N,O-carboxymethyl chitosan (NOCC) composite nanofiltration membranes crosslinked by ECH were developed using a method of coating and crosslinking, where an epichlorohydrin/ethanol 96.7% (0.067 M KOH) solution was used as the crosslinking agent. The structure and the morphology of the resulting membrane were characterized by attenuated total reflection infrared spectroscopy (ATR-IR) and environmental scanning electron microscopy (ESEM). The effects of preparation conditions on the rejection performance of the resulting composite membrane were also investigated. At 20°C and 0.40 MPa the rejections of the resulting membrane to Na2SO4 and NaCl solutions (1000 mg L−1) were 90.4% and 27.4%, respectively, and the permeate fluxes were 7.9, and 10.8 kg m−2h−1, respectively. The rejections of this kind of NOCC/PSF composite NF membrane to the inorganic electrolyte solutions decreased in the order of Na2SO4, NaCl, MgSO4, and MgCl2. [Copyright &y& Elsevier]
- Subjects :
- *CHITIN
*EPICHLOROHYDRIN
*MEMBRANE separation
*ELECTROLYTE solutions
Subjects
Details
- Language :
- English
- ISSN :
- 00119164
- Volume :
- 233
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Desalination
- Publication Type :
- Academic Journal
- Accession number :
- 34979575
- Full Text :
- https://doi.org/10.1016/j.desal.2007.09.037