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http://dx.doi.org/10.4191/KCERS.2008.45.4.196

Characterization of Metal(Cu, Zn)-Carbon/TiO2 Composites Derived from Phenol Resin and their Photocataytic Effects  

Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University)
Bae, Jang-Soon (Department of Industrial Chemistry, Dankook University)
Publication Information
Journal of the Korean Ceramic Society / v.45, no.4, 2008 , pp. 196-203 More about this Journal
Abstract
Metal-carbon/$TiO_2$ composite photocatalysts were thermally synthesized through the mixing of anatase to metal(Cu, Zn) containing phenol resin in an ethanol solvent coagulation method. The BET surface area increases, with the increase depending on the amount of metal salt used. From SEM images, metal components and carbon derived from phenol resin that contains metal was homogeneously distributed to composite particles with porosity. XRD patterns revealed that metal and titanium dioxide phase can be identified for metal-carbon/$TiO_2$ composites, however, the diffraction peaks of carbon were not observed due to the low carbon content on the $TiO_2$ surfaces and due to the low crystallinity of the amorphous carbon. The results of a chemical elemental analysis of the metal-carbon/$TiO_2$ composites showed that most of the spectra for these samples gave stronger peaks for C, O, treated metal components and Ti metal compared to that of any other elements. According to photocatalytic results, the MB degradation can be attributed to the three types of synergetic effect: photocatalysis, adsorptivity and electron transfer, according to the light absorption between the supporter $TiO_2$, metal species, and carbon layers.
Keywords
Carbon; Titanium dioxide; Metal; XRD; BET; SEM; EDX; Photocatalysis;
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