Journal
MATERIALS LETTERS
Volume 64, Issue 22, Pages 2431-2434Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2010.08.001
Keywords
Photodegradation; pH-sensitive; Hydrogel; TiO2; Composite; Nanofiber
Funding
- National Research Foundation of Korea [과C6B1913] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The composite nanofibers of poly(vinyl alcohol)/poly(N,N-dimethylaminopropyl acrylamide) hydrogel and TiO2 were prepared by electrospinning for a novel treatment of acidic waste water The anatase TiO2 was used as a photocatalyst due to its high photodegradation efficiency. TiO2 was immobilized in the electrospun fibers for an easy recovery of TiO2 after the waste treatment. The hydrogel nanofibers swelled rapidly in the acidic condition due to the repulsion among the protonated amine groups in the polymer chains. High efficiency of phsotocatalytic decomposition of dye was obtained by the fast swelling of hydrogel in the acidic condition and the uniform dispersion of TiO2 by sonication (C) 2010 Elsevier B V All rights reserved
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