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대형 스모그 챔버를 이용한 TiO2의 NO 저감 효능 평가
글쓴이 관리자 (IP: *.223.176.122) 작성일 2021-12-31 19:40 조회수 216

대형 스모그 챔버를 이용한 TiO2의 NO 저감 효능 평가

Assessment of NO Reduction using TiO2 in Large-Scale Smog Chamber 


Abstract

A large-scale environment chamber was built to test the efficiency of NO reduction to apply the real-road systems using TiO2, which is a relatively inexpensive and easy to handle material in the past 20 years. In general, TiO2 is a semiconductor material with a band gap of 3.2 eV, corresponding to a wavelength of 390 nm. Three types (i.e., power, black, white block) of TiO2 were tested to investigate NO reduction. As a result. power TiO2 was shown for the best NO reduction up to 72% (overall average of 40.8% at 120 min.) rather than white (23.0%) and black block (15.8%) impregnated by TiO2. For an implication, the inorganic secondary products under the condition of reactive oxygen species from TiO2 should be considered for a further study.


Key words 

Environment chamber, Smog chamber, TiO2

 

▶출처 : 한국대기환경학회지 제 37권 제 6호, 2021.12

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