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http://dx.doi.org/10.4191/KCERS.2009.46.3.263

Photoelectrocatalytic Degradation of Dyes in Aqueous Solution Using CNT/TiO2 Electrode  

Zhang, Feng-Jun (School of Materials and Chemical Engineering, Anhui University of Architecture)
Liu, Jin (School of Materials and Chemical Engineering, Anhui University of Architecture)
Chen, Ming-Liang (Department of Advanced Materials & Science Engineering, Hanseo University)
Oh, Won-Chun (School of Materials and Chemical Engineering, Anhui University of Architecture)
Publication Information
Journal of the Korean Ceramic Society / v.46, no.3, 2009 , pp. 263-270 More about this Journal
Abstract
The effect of photoelectrocatalytic (PEC) degradation for different dyes with the CNT/$TiO_2$ electrode was studied. The prepared electrode was characterized with surface properties, structural crystallinity, elemental identification, and PEC activity. The $N_2$ adsorption data showed that the composites had decreased surface area compared with the pristine CNT. This indicated the blocking of micropores on the surface of CNT, which was further supported by observation via FESEM. XRD patterns of the composites showed that the CNT/$TiO_2$ composite contained a mixing anatase and rutile phase. EDX spectra showed the presence of C, O and Ti peaks for all samples. The decomposition efifciency of the prepared electrode was evaluated by the PEC degradation of three dyes (methylene blue (MB), rhodamine B (RH.B), methyl orange (MO)). The variations of the FT-IR spectra and pH value of dye solutions were measured during the PEC system; it was found that the CNT/$TiO_2$ electrode has better PEC degradation for MB solution than that of RH.B and MO. The proposed degradation mechanism was present.
Keywords
CNT/$TiO_2$; electrode; Photoelectrocatalytic (PEC) degradation; Dyes; FT-IR; pH;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 9
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