Synthesis of carbonaceous poly(furfuryl alcohol) membrane for water desalination
He, L., Li, D., Zhang, G., Webley, P.A., Zhao, D. and Wang, H. (2010) Synthesis of carbonaceous poly(furfuryl alcohol) membrane for water desalination. Industrial & Engineering Chemistry Research, 49 (9). pp. 4175-4180.
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A novel carbonaceous poly(furfuryl alcohol) (CPFA) membrane was fabricated by partially carbonizing a poly(furfuryl alcohol) (PFA) layer supported on a commercial polysulfone substrate with high-concentration sulfuric acid at room temperature. Gas permeation experiments suggested that the PFA membrane became microporous after sulfuric acid treatment. ATR-IR spectra showed that the furan structure of PFA was degraded by the high-concentration sulfuric acid, forming CPFA. As compared with the PFA membrane, the CPFA membrane exhibited significantly enhanced chlorine resistance and water desalination properties. The CPFA membrane had a salt rejection of around 93.3% and a water permeability of 1.54 L·μm·m−2·h−1·bar−1. After the chlorine treatment, the CPFA membrane exhibited a salt rejection of 73.7% and a water permeability of 2.01 L·μm·m−2·h−1·bar−1, whereas the PFA membrane had a salt rejection of only 60.1% and a water permeability of 0.17 L·μm·m−2·h−1·bar−1.
|Publication Type:||Journal Article|
|Publisher:||American Chemical Society|
|Copyright:||© 2010 American Chemical Society|
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