Porous Photocatalytic Concrete Filter Manufacturing and Efficiency Evaluation for NOx Reduction

Jong Kyu Kim

doi:10.3740/MRSK.2022.32.4.223

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2022 Vol.32, Issue 4 Preview Page Next Page

Porous Photocatalytic Concrete Filter Manufacturing and Efficiency Evaluation for NOx Reduction NOx 저감을 위한 다공성 광촉매 콘크리트 필터 제조 및 효율평가

April 2022. pp. 223-229

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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

TiO₂

continuous void ratio

lightweight aerated concrete

ultra fine bubble

NO reduction

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Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 32
No :4
Pages :223-229
Received Date : 2022-03-25
Revised Date : 2022-04-18
Accepted Date : 2022-04-18
DOI :https://doi.org/10.3740/MRSK.2022.32.4.223

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

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