| Synthesis and Characterization of Fe-containing AC/TiO2 Composites and
Their Photodegradation Effect for the Piggery Waste |
| Won-Chun Oh† |
| Department of Advanced Materials & Science Engineering, Hanseo University, Chungnam 356-706, Korea |
Corresponding Author:
Won-Chun Oh ,Tel: +82-41-660-1337, Fax: +82-41-688-3352, Email: wc_oh@hanweo.ac.kr
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Received: January 6, 2008; Accepted: April 7, 2008. |
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| ABSTRACT |
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In this present study, we have synthesized Fe-containing AC(activated carbon)/TiO2 composites with titanium (VI) n-butoxide (TNB) as a titanium
source to Fe treated AC through an impregnation method. The result of the textural surface properties demonstrates that there is a slight
decrease in the BET surface area of composite samples with an increase of the amount of Fe treated. The surface properties of scanning electron
microscope (SEM) presented a characterization of a porous texture on the Fe-containing AC/TiO2 composites and homogenous compositions for Fe
and titanium dioxide distributed on the sample surfaces. Fe compound peaks and a titanium dioxide structure were observed in the X-ray diffraction
patterns for the Fe-containing AC/TiO2 composites. The results of chemical elemental composition for the Fe-containing AC/TiO2 composites showed
that most of the spectra for these samples gave stronger peaks for C, O, treated Fe components and Ti metal than that of any other elements. From
the photo degradation results for the piggery waste, the Fe-containing AC/TiO2 composites showed an excellent degradation activity for the chemical
oxygen demand (COD) due to a photocatalysis of the supported TiO2, radical reaction by Fe species and the adsorptivity and absorptivity of
porous carbon. |
| Keywords:
Activated carbon | Titanium (IV) n-butoxide | BET | XRD | SEM | Photocatalysis |
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