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논문 기본 정보

자료유형
학술저널
저자정보
Joseph Albert Mendoza (Dongguk University) Dong Hoon Lee (Dongguk University) Joo-Hyon Kang (Dongguk University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제21권 제3호
발행연도
2016.9
수록면
291 - 296 (6page)

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초록· 키워드

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Application of photocatalytic nanoparticles has been recently gaining an increased attention as air purifying material for sustainable urban development. The present work reports the photocatalytic removal of gaseous phase nitrogen oxides (NOx) using TiO₂–coated zeolite to be applied as a filter media for the urban green infrastructure such as raingardens. The TiO₂–coated zeolite was synthesized by simple wet chemistry method and tested in a continuous-flow photo-reactor for its removal efficiency of NOx under different conditions of the weight percentage of TiO₂ coated on the zeolite, and gas retention time. The removal efficiency of NOx in general increased as the weight percentage of TiO₂ coated on the zeolite increased up to 15-20%. Greater than 90% of NOx was removed at a retention time of one minute using the TiO₂–coated zeolite (TiO₂ weight percentage = 20%). Overall, TiO₂–coated zeolite showed greater efficiency of NOx removal compared to TiO₂ powder probably by providing additional reaction sites from the porous structure of zeolite. It was presumed that the degradation of NOx is attributed to both the physical adsorption and photocatalytic oxidation that could simultaneously occur at the catalyst surface.

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ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2017-539-001842872