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Preparation and photocatalytic activity of ACF/$TiO_2$ composites by using titanium n-butoxide and acid modified activated carbon fiber  

Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University)
Kwon, Ho-Joug (Department of Advanced Materials & Science Engineering, Hanseo University)
Chen, Ming-Liang (Department of Advanced Materials & Science Engineering, Hanseo University)
Zhang, Feng-Jun (Department of Advanced Materials & Science Engineering, Hanseo University)
Ko, Weon-Bae (Department of Chemistry, Sahmyook University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.19, no.3, 2009 , pp. 144-151 More about this Journal
Abstract
Photocatalytic degradation of methylene blue (MB) in aqueous solution was investigated using $TiO_2$ coated on various acid modified activated carbon fiber (ACF). The ACFs/$TiO_2$ composites were prepared from titanium n-butoxide (TNB) as titanium precursor and various acid modified ACFs. The prepared samples are heat treated at 973 K. Then the ACF/$TiO_2$ composites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX). Moreover, photocatalytic degradation of MB by the ACF/$TiO_2$ composites was determined under UV irradiation. The results shows that the photocatalytic activity of ACF/$TiO_2$ composites ($AT1{\sim}AT4$) prepared with TNB and various acid modified ACF was much better than that of ACF/$TiO_2$ composite (AT) prepared with TNB and non-acid modified ACF, and the effects improved with order of sample AT3 > AT4 > AT1 > AT2.
Keywords
Titanium n-butoxide; ACF; UV; Photocatalytic degradation;
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Times Cited By KSCI : 1  (Citation Analysis)
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