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Technical Notes

The reaction and effects of titanium dioxide (TiO2) used as the material of photocatalytic-pavement-method

광촉매포장의 재료로 사용되는 이산화티타늄(TiO2)의 반응과 효과

Il Hwan Kang1*
,
Tae Soon Park2
,
Young In Lee3
,
Dong Min Cho1
강 일환1*
,
박 태순2
,
이 영인3
,
조 동민1
1Ph.D Course, Department of Civil Engineering, Seoul National University of Science & Technology
2Professor, Department of Civil Engineering, Seoul National University of Science & Technology
3Professor, Department of Materials Science & Engineering, Seoul National University of Science & Technology
1서울과학기술대학교 건설시스템공학과 박사과정
2서울과학기술대학교 건설시스템공학과 교수
3서울과학기술대학교 신소재공학과 교수
*Corresponding Author
30 June 2021. pp. 80-88
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Abstract

Photocatalyst research started with hydrogen production using photolysis of water in 1972 and has recently been expanded to various fields such as decomposition of environmental pollutants, odor removal, and antibacterial. As a photocatalyst is also applied to asphalt pavement, photocatalytic pavement is attracting attention as an alternative to fine dust reduction. This study aims to understand the principle and construction method of photocatalyst packaging by studying the reaction and effect of titanium dioxide used as a photocatalyst as a literature study. Titanium dioxide decomposes pollutants through a strong reduction reaction in which excited electrons and holes are generated in response to light, and active oxygen and hydroxyl groups are generated. It was confirmed through research cases that nitrogen gas is reduced when titanium dioxide is coated on asphalt pavement.

Keywords
Photocatalyst
Titanium dioxide
TiO2
Fine dust reduction
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Information
  • Publisher :KOREAN ASPHALT INSTITUTE
  • Publisher(Ko) :한국아스팔트학회
  • Journal Title :Journal of the Korean Asphalt Institute
  • Journal Title(Ko) :한국아스팔트학회지
  • Volume : 11
  • No :1
  • Pages :80-88
  • Received Date : 2021-05-25
  • Revised Date : 2021-06-10
  • Accepted Date : 2021-06-15
  • DOI :https://doi.org/10.22702/jkai.2021.11.1.8
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