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KMID : 0385520090220030254
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Analytical Science & Technology
2009 Volume.22 No. 3 p.254 ~ p.262
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Fabrication of Fe-ACF/TiO2 composites and their photonic activity for organic dye
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Zhang Kan
Oh Won-Chun
Ko Weon-Bae
Meng Ze-Da
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Abstract
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Activated carbon fiber treated with iron compound (Fe-ACF) was employed for preparation of Feactivated carbon fiber/TiO₂ (Fe-ACF/TiO₂) composite catalysts. Then, the prepared Fe-ACF/TiO₂ composite catalysts were characterized by employing BET, SEM, XRD and EDX instruments. It showed that BET surface area was related to adsorption capacity for each composite. The SEM results showed that ferric compound and titanium dioxide were distributed on the surfaces of ACF. The XRD results showed that Fe-ACF/TiO₂ composite mostly contained an anatase structure with a Fe mediated compound. EDX results showed the presence of C, O, and Ti with Fe peaks in Fe-ACF/TiO₂ composites. From photocataytic degradation effect, it was observed in the organic dye (Methylene blue, MB) degradation by these composites. Different degradation effect can be attributed to the synergetic effects of photo-Fenton reaction of Fe. It was considered that the combined reactions of Fe-ACF/TiO₂ produce powerful photo-Fenton process in the MB degradation.
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KEYWORD
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Activated carbon fiber, Fe, Methylene blue, Photo-Fenton, SEM
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