Electro-chemical preparation of TiO2/ACF composites with TNB electrolyte and their photocatalytic effect

다국어 초록 (Multilingual Abstract)

In this study, we have investigated a method for the electro-chemical preparation of TiO2/ACF composites involving the
electro-plating of Ti in titanium n-butoxide (TNB) electrolyte into an activated carbon fiber matrix. The surface textural
properties showed that the BET surface area and the total pore volume decrease as the distribution of TiO2 on the activated
carbon fiber surfaces with electro-chemical operating time. The changes in XRD patterns showed typical anatase type on the
TiO2/ACF composite prepared with activated carbon fiber matrix by the electro-plating method in the TNB solution. In SEM
micrographs, the titanium complex particles are uniformly distributed on and the around the fibers. And some large clusters
were found when the electro-chemical operating time increases. The results of chemical elemental analysis for the TiO2/ACF
composites showed that most of the spectra for these samples gave stronger peaks for carbon and Ti metal than that of any
other elements. From the results of thermal analysis, it could be considered that the amounts of the TiO2 components in the
composite increase with an increase of the electro-chemical operating time. Finally, the prominent photocatalytic activity of the
TiO2/ACF composites between c/co and time could be attributed to both the effects of catalytic decomposition and adsorptivity
between the supported TiO2 and the porous fiber matrixes.

다국어 초록 (Multilingual Abstract)

In this study, we have investigated a method for the electro-chemical preparation of TiO2/ACF composites involving the
electro-plating of Ti in titanium n-butoxide (TNB) electrolyte into an activated carbon fiber matrix. The surface textural
properties showed that the BET surface area and the total pore volume decrease as the distribution of TiO2 on the activated
carbon fiber surfaces with electro-chemical operating time. The changes in XRD patterns showed typical anatase type on the
TiO2/ACF composite prepared with activated carbon fiber matrix by the electro-plating method in the TNB solution. In SEM
micrographs, the titanium complex particles are uniformly distributed on and the around the fibers. And some large clusters
were found when the electro-chemical operating time increases. The results of chemical elemental analysis for the TiO2/ACF
composites showed that most of the spectra for these samples gave stronger peaks for carbon and Ti metal than that of any
other elements. From the results of thermal analysis, it could be considered that the amounts of the TiO2 components in the
composite increase with an increase of the electro-chemical operating time. Finally, the prominent photocatalytic activity of the
TiO2/ACF composites between c/co and time could be attributed to both the effects of catalytic decomposition and adsorptivity
between the supported TiO2 and the porous fiber matrixes.

참고문헌 (Reference)

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