Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Surface Coating of SiO2 on TiO2-natural Zeolite Composite Particles and Its Characterization

실리카 코팅된 TiO2-천연 제올라이트 복합입자 제조와 특성평가

  • Lim, Hyung-Mi (Composites materials Lab., Nanomaterials Application Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Jung, Ji-Sook (Composites materials Lab., Nanomaterials Application Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Lee, Dong-Jin (Composites materials Lab., Nanomaterials Application Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Lee, Seung-Ho (Composites materials Lab., Nanomaterials Application Division, Korea Institute of Ceramic Engineering and Technology)
  • 임형미 (요업(세라믹)기술원 나노소재응용본부 복합재료팀) ;
  • 정지숙 (요업(세라믹)기술원 나노소재응용본부 복합재료팀) ;
  • 이동진 (요업(세라믹)기술원 나노소재응용본부 복합재료팀) ;
  • 이승호 (요업(세라믹)기술원 나노소재응용본부 복합재료팀)
  • Published : 2006.11.27
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Abstract

Deodorization of natural zeolites have been improved not only for polar but also for non-polar pollutants by sucessive ion exchanges of H and Ag ions starting from Korean natural zeolite with high adsorption capacity. The modified zeolites with $TiO_2$ coating on the surface revealed high deodorization and photocatalytic decomposition effects. Further modification was made with $10{\sim}20nm$ silica nano particles coating on the surface, the resulting composite particles of $SiO_2/TiO_2/modified$ natural zeolite revealed not only comparable deodorization but also better durability and resisatnce to color change compared to the $TiO_2$/modified natural zeolite without much compensation of photocatalytic decomposition effect, when the composite particles were exposed to the polypropylene non-woven fiber coated with organic binder. It is expected for the composite particle prepared here to be used as indoor building materials for indoor air quality control.

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References

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