Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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TiO2 Combining Spherical Activated Carbon Photocatalysts and Their Physicochemical and Photocatalytic Activity

  • Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Kim, Jong-Gyu (Hanil Green Tech Co, Ltd) ;
  • Kim, Hyuk (Hanil Green Tech Co, Ltd) ;
  • Chen, Ming-Liang (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Zhang, Feng-Jun (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Zhang, Kan (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Choi, Jong-Geun (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Meng, Ze-Da (Department of Advanced Materials & Science Engineering, Hanseo University)
  • Received : 2010.08.14
  • Accepted : 2010.10.06
  • Published : 2010.10.27
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Abstract

In this study, we used coal-based activated carbons and charcoal as startingmaterials, phenolic resin (PR) as a binder, and TOS as a titanium source to prepare $TiO_2$ combining spherical shaped activated carbon photocatalysts. The textural properties of the activated carbon photocatalysts (SACP) were characterized by specific surface area (BET), energy dispersive X-ray spectroscopy (XRD), scanning electron microscopy (SEM), iodine adsorption, strength intensity, and pressure drop. The photocatalytic activities of the SACPs were characterized by degradation of the organic dyes Methylene Blue (MB), Methylene Orange (MO), and Rhodamine B (Rh. B) and a chemical oxygen demand (COD) experiment. The surface properties are shown by SEM. The XRD patterns of the composites showed that the SACP composite contained a typical single, clear anatase phase. The EDX spectro for the elemental indentification showed the presence of C and O with Ti peaks. According to the results, the spherical activated carbon photocatalysts sample of AOP prepared with activated carbon formed the best spherical shape, a high BET surface area, iodine adsorption capability and strength value, and the lowest pressure drop, and the photocatalytic activity was better than samples prepared with charcoal. We compared the degradation effects among three kinds of dyes. MB solution degraded with the SACP is better than any other dye solutions.

Keywords

References

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