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논문 기본 정보

자료유형
학술저널
저자정보
Soo Yeon Park (Seoul National University) Jiwon Seo (National Institute of Environmental Research) Taewan Kim (Seoul National University) Joohyun Kim (Seoul National University) Joon-Young Choi (Hyorim Industries) Changha Lee (Seoul National University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제27권 제4호
발행연도
2022.8
수록면
127 - 136 (10page)

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초록· 키워드

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MIL-53(Fe), synthesized by a one-step hydrothermal method, was investigated for the removal of toluene and inactivation of bacteriophage ΦX 174 in air under visible light illumination. MIL-53(Fe) exhibited superior photochemical activity to other metal organic frameworks synthesized by the same method with different metal precursors. Analytical methods of diffuse reflectance spectroscopy, BET specific surface area analysis, SEM-EDS, FT-IR analysis, XRD, Mott-Schottky analysis, and XPS were used to characterize MIL-53(Fe). The illuminated MIL-53(Fe) removed input toluene (C<SUB>0</SUB> = 3.59 g/m³) by 66% in 6 h by adsorption and subsequent photocatalytic oxidation. High humidity and temperature, and the anoxic condition inhibited the toluene removal. MIL-53(Fe) showed sustainable toluene removal for five consecutive runs, even though the photocatalytic activity slightly decreased. Meanwhile, the illuminated MIL-53(Fe) also resulted in the inactivation of ΦX 174 suspended in air, achieving approximately 3 log inactivation in 60 min (N<SUB>0</SUB> = ~10<SUP>6</SUP> PFU/mL air). Similar to toluene removal, the presence of oxygen and low humidity were beneficial for viral inactivation. The photo-generated holes are believed to be responsible for the organic degradation and viral inactivation by the illuminated MIL-53(Fe).

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

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