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SURFACE PROPERTIES AND CATALYTIC PERFORMANCE OF ACTIVATED CARBON FIBERS SUPPORTEDTiO2PHOTOCATALYST

Author

Listed:
  • HUIFEN YANG

    (Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, P. R. China)

  • PINGFENG FU

    (Department of Environmental Science, College of Arts & Science of Beijing Union University, Beijing 100083, P. R. China)

Abstract

Activated carbon fibers supportedTiO2photocatalyst (TiO2/ACF) in felt-form was successfully prepared with a dip-coating process using organic silicon modified acrylate copolymer as a binder followed by calcination at 500°C in a stream ofArgas. The photocatalyst was characterized by SEM, XRD, XPS, FTIR, and BET surface area. Most of carbon fibers were coated with uniformly distributedTiO2clusters of nearly 100 nm. The loadedTiO2layer was particulate for the organic binder in the compact film was carbonized. According to XPS and FTIR analysis, amorphous silica in carbon grains was synthesized after carbonizing organic silicon groups, and theTi–O–Sibond was formed between the interface of loadedTiO2and silica. Additionally, the space between adjacent carbon fibers still remained unfilled afterTiO2coating, into which both UV light and polluted solutions could penetrate to form a three-dimensional environment for photocatalytic reactions. While loadedTiO2amount increased to 456 mgTiO2/1 g ACF, theTiO2/ACF catalyst showed its highest photocatalytic activity, and this activity only dropped about 10% after 12 successive runs, exhibiting its high fixing stability of coatedTiO2.

Suggested Citation

  • Huifen Yang & Pingfeng Fu, 2008. "SURFACE PROPERTIES AND CATALYTIC PERFORMANCE OF ACTIVATED CARBON FIBERS SUPPORTEDTiO2PHOTOCATALYST," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 15(04), pages 337-344.
    • Handle: RePEc:wsi:srlxxx:v:15:y:2008:i:04:n:s0218625x08011469
    DOI: 10.1142/S0218625X08011469
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    1. Bean, Jonathan J., 2002. "Nixon's Civil Rights: Politics, Principle, and Policy. ByDean Kotlowski. Cambridge, Mass.: Harvard University Press, 2002. xii + 404. Notes, bibliography, index. Cloth, $35.00. ISBN 0–674–00623–," Business History Review, Cambridge University Press, vol. 76(2), pages 400-402, July.
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