Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Porous Photocatalytic Concrete Filter Manufacturing and Efficiency Evaluation for NOx Reduction

NOx 저감을 위한 다공성 광촉매 콘크리트 필터 제조 및 효율평가

  • Kim, Jong Kyu (Department of Urban and Real Estate Development Engineering, Shinhan University)
  • 김종규 (신한대학교 도시기반부동산학과)
  • Received : 2022.03.25
  • Accepted : 2022.04.18
  • Published : 2022.04.27
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Abstract

A porous photocatalyst concrete filter was successfully produced to remove NOx, by mixing TiO2 photocatalyst with lightweight aerated concrete. Ultra Fine Bubbles were used to form continuous pores inside the porous photocatalytic concrete filter, which was mixed via a bubble generation experiment. The optimal mixing condition was determined to be with 4 % of the bubble generation agent B. NO removal specimens were prepared for various photocatalytic loading conditions, and the specimen containing 3 % P-25 removed NO at a concentration of 1.03 µmol in 1 h. The NO removal rate of the porous photocatalytic concrete filter prepared in this study was 10.99 %. This photocatalytic filter performance was more than 9 times the amount of NO removed by a general photocatalytic filter. The porous photocatalyst concrete filter for removing NOx developed in this study can be applied to various construction sites and the air quality can be solved by reducing NOx contributing to the formation of fine particles.

Keywords

Acknowledgement

This work was supported by the Shinhan University Research Fund, 2021.

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