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ISSN : 1225-0112(Print)
ISSN : 2288-4505(Online)
Applied Chemistry for Engineering Vol.28 No.5 pp.565-570
DOI : https://doi.org/10.14478/ace.2017.1076

Removal Efficiency of Harmful Substances in Side-stream Tobacco Smoke by the
Doping Components of Commercial TiO2 Photocatalysts

Tae-Young Kim, Yeong-Tae Cho, Gi-Hak Moon, and Jae-Yong Kim
Department of Environmental Engineering, Chungbuk National University
Department of Environmental Engineering, Chungbuk National University, e-mail: jykim4@korea.com
Jae-Yong Kim

Abstract

Tobacco smoke emitted during smoking is divided into a main-stream and side-stream smoke. Most of the tobacco smoke that spreads to a room while smoking is a side-stream one. The side-stream tobacco smoke is two to three times more harmful than that of the main-stream tobacco smoke. In this study, the removal efficiency of CO, H2S, NH3 and HCHO in a side-stream tobacco smoke using the doping component of TiO2 photocatalysts was confirmed. As a result, CO was removed up to 78.37%, which indicated that the TiO2 photocatalytic process is effective for CO removal. Also, the removal efficiencies of CO, H2S and HCHO were greatly affected by the amount of doped O and Si components of the TiO2 photocatalyst. In conclusion, the more doped O and Si components had, the higher removal efficiencies of harmful substances were achieved.

시판용 TiO2 광촉매의 doping 성분에 따른 비주류 담배연기의 유해물질 제거효율

김태영⋅조영태⋅문기학⋅김재용
충북대학교 환경공학과

초록

흡연으로 발생되는 담배연기는 주류 연기와 비주류 연기로 구분된다. 담배연기 중 실내로 확산되는 연기의 대부분은 비주류 연기이며, 비주류 연기의 유해물질 농도는 주류 연기의 농도보다 2~3배 높다. 본 연구에서는 TiO2 광촉매의 doping 성분에 따른 비주류 담배연기 내의 CO, H2S, NH3, HCHO의 제거 효율을 확인하고자 하였다. 실험 결과, CO가 최대 78.37% 제거되었으며, TiO2 광촉매 공정이 CO 제거에 효과적인 것으로 확인되었다. 또한 CO, H2S, HCHO의 제거 에 있어서 TiO2 광촉매에 doping된 O, Si 성분에 의해 영향을 크게 받는다. 결론적으로, doping된 O, Si 성분이 많을수 록 유해물질 제거효율이 높다.
 

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