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NTIS 바로가기Korean chemical engineering research = 화학공학, v.51 no.1, 2013년, pp.80 - 86
In this study, the photocatalytic reactor system equipped with photocatalyst-carrying-silica-media cartridges [photocatalytic reactor system (1)] was used to perform the treatment of waste air containing malodor and volatile organic compound (VOC). The result of its performance was evaluated and com...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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촉매 활성에 대한 비가역적 비활성화을 어떻게 지연시킬수 있는가? | 광촉매 비활성화는 현장에서 광촉매산화기술을 적용할 때의 치명적인 약점으로 알려졌는데, 특히 벤조익산과 같은 산소함유 화합물은 TiO2 광촉매 활성에 대한 비가역적 비활성화를 초래한다고 보고되었다[6,7]. 이러한 광촉매 비활성화는 타이타니아-실리카[7,8], 타이타니아-바나 디아[9,10], 타이타니아-철[11], 타이타니아-텅스텐[10,12] 또는 타이타니아-주석혼합산화물[13]와 같은 이원촉매를 사용하여 지연시킬 수 있다. | |
광촉매산화의 장점은? | 광촉매산화는 VOC 제거를 위한 대안으로서 점차 보편화되고 있다[1]. 광촉매산화는 전통적인 공기정화 기술[2]보다 낮은 농도 오염원의 산화분해, 주변 온도 및 압력에서 운전, 낮은 동력소모, 쉬운 유지조건과 공조설비와 연결사용가능성과 같은 여러 장점을 제공한다. 낮은 농도의 VOC에 대한 TiO2 광촉매산화는 지금까지 포괄적으로 광범위하게 연구되었다. | |
광촉매 비활성화의 약점은? | 대부분의 연구가 액상에서의 광분해를 다루었지만 최근에는 주로 공기정화를 위한 기상의 유기화합물분해가 중요해지고 있다[3-5]. 광촉매 비활성화는 현장에서 광촉매산화기술을 적용할 때의 치명적인 약점으로 알려졌는데, 특히 벤조익산과 같은 산소함유 화합물은 TiO2 광촉매 활성에 대한 비가역적 비활성화를 초래한다고 보고되었다[6,7]. 이러한 광촉매 비활성화는 타이타니아-실리카[7,8], 타이타니아-바나 디아[9,10], 타이타니아-철[11], 타이타니아-텅스텐[10,12] 또는 타이타니아-주석혼합산화물[13]와 같은 이원촉매를 사용하여 지연시킬 수 있다. |
Lasa, H. D., Serrano, B. and Salaices, M., Photocatalytic Reaction Engineering, Springer, London, 17(2005).
Jacoby, W. A., Blake, D. M., Noble, R. D. and Koval, C. A., "Kinetics of the Oxidation of Trichloroethylene in Air Via Heterogeneous Photocatalysis," J. Catal., 157, 87-96(1995).
Zhao, J. and Yang, X., "Photocatalytic Oxidation for Indoor Air Puri & Cation: a Literature Review," Building and Environment, 38, 645-654(2003).
Raupp, G. B., Alexiadis, A., Hossain, M. M. and Changrani, R., "First-Principles Modeling, Scaling Laws and Design of Structured Photocatalytic Oxidation Reactors for air Purification," Catal. Today 69, 41-49(2001).
Mills, A. and Lee, S. K., "A Web-based Overview of Semiconductor Photochemistry-based Current Commercial Applications," J. Photochem. Photobiol. A-Chem., 152, 233(2002).
Xie, C., Xu, Z., Yang, Q., Li, N., Zhao, D., Wang, D. and Du, Y., A: Chem., "Comparative Studies of Heterogeneous Photocatalytic Oxidation of Heptane and Toluene on Pure Titania, Titaniasilica Mixed Oxides and Sulfated Titania," J. Mol. Catal., 217, 193(2004).
Mendez-Roman, R. and Cardona-Martinez, N., "Relationship Between the Formation of Surface Species and Catalyst Deactivation During the Gas-phase Photocatalytic Oxidation of Toluene," Catal. Today., 40, 353(1998).
Obuchi, E., Sakamoto, T. and Nakano, K., "Photocatalytic Decomposition of Acetaldehyde Over $Ti0_{2}/Si0_{2}$ Catalyst," Chem. Eng. Sci. 54, 1525-1530(1999).
Ge, H., Chen, G., Yuan, Q. and Li, H., "Gas Phase Catalytic Partial Oxidation of Toluene in a Microchannel Reactor," Catal. Today, 110, 171(2005).
Keller, N., Barraud, E., Bosc, F., Edwards, D. and Keller, V., "On the Modification of Photocatalysts for Improving Visible Light and UV Degradation of Gas-phase Toluene Over $TiO_{2}$ ," Appl. Catal. B: Environ., 70, 423(2007).
Kang, M., Choung, S. J. and Park, J. Y., "Photocatalytic Performance of Nanometer-sized FexOy/ $TiO_{2}$ Particle Synthesized by Hydrothermal Method," Catal. Today, 87, 87(2003).
Keller, V., Bernhardt, P. and Garin, F., "Photocatalytic Oxidation of Butyl Acetate in Vapor Phase on $TiO_{2}$ , Pt/ $TiO_{2}$ and $WO_{3}$ / $TiO_{2}$ Catalysts," J. Catal., 215, 129(2003).
Zuo, G. M., Cheng, Z. X., Chen, H., Li, G. W. and Miao, T., "Study on Photocatalytic Degradation of Several Volatile Organic Compounds," J. Hazard. Mater. B, 128, 158-163(2006).
Gerven, T. V., Mul, G., Moulijn, J. and Stankiewicz, A., "A Review of Intensification of Photocatalytic Processes," Chem. Eng. Process, 46, 781-789(2007).
Larson, S. A., Widegren, J. A. and Falconer, J. L., "Transient Studies of 2-propanol Photocatalytic Oxidation on Titania," J. Catal., 157, 611-625(1995).
Esterkin, C. R., Negro, A. C., Alfano, O. M. and Cassano, A. E., "Air Pollution Remediation in a Fixed Bed Photocatalytic Reactor Coated with $TiO_{2}$ ," AIChE J., 51, 2298-2310(2005).
Park, O. H. and Na, H. Y., "Photocatalytic Degradation of Toluene Vapour Using Fixed Bed Multichannel Photoreactors Equipped with $TiO_{2}$ Coated Fabrics," Environ. Technol., 29, 1001-1007(2008).
Salvad-Estivill, I., Hargreaves, D. M. and Puma, G. L., "Evaluation of the Intrinsic Photocatalytic Oxidation Kinetics of Indoor Air Pollutants," Environ. Sci. Technol., 41, 2028-2035(2007).
Mohseni, M. and Taghipour, F., "Experimental and CFD Analysis of Photocatalytic Gas Phase Vinyl Chloride (VC) Oxidation," Chem. Eng. Sci., 59, 1601-1609(2004).
Obee, T. N., "Photooxidation of Sub-parts-per-million Toluene and Formaldehyde Levels on Titania Using a Glass-plate Reactor," Environ. Sci. Technol., 30, 3578-3584(1996).
Dibble, L. A. and Raupp, G. B., "Fluidized-bed Photocatalytic Oxidation of Trichloroethylene in Contaminated Air Streams," Environ. Sci. Technol., 26, 492-495(1992).
Zhang, M. An, T., Fu, J., Sheng, G., Wang, X., Hu, X. and Ding, X., "Photocatalytic Degradation of Mixed Gaseous Carbonyl Compounds At Low Level on Adsorptive $TiO_{2}/SiO_{2}$ Photocatalyst Using a Fluidized Bed Reactor," Chemosphere, 64, 423-431 (2006).
Hossain, M. M., Raupp, G. B., Hay, S. O. and Obee, T. N., "Three-dimenSional Developing Flow Model For Photocatalytic monolith reactors," AIChE J., 45, 1309-1321(1999).
Taranto, J., Frochot, D. and Pichat, P., "Photocatalytic Air Purification: Comparative Efficacy and Pressure Drop of a $TiO_{2}$ - Coated Thin Mesh and a Honeycomb Monolith at High Air Velocities Using a 0.4 m3 Close-loop Reactor," Sep. Purif. Technol., 67, 187-193(2009).
Choi, W. Ko, J. Y., Park, H. and Chung, J. S., "Investigation on $TiO_{2}$ -coated Optical Fibers for Gas-phase Photocatalytic Oxidation of Acetone," Appl. Catal. B: Environ., 31, 209-220(2001).
Denny, F., Scott, J., Peng, G. D. and Amal, R., "Channelled Optical Fibre Photoreactor for Improved Air Quality Control," Chem. Eng. Sci., 65, 882-889(2010).
Peill, N. J., Hoffmann, M. R., "Development and Optimization of a $TiO_{2}$ -Coated Fiber-Optic Cable Reactor: Photocatalytic Degradation of 4-chlorophenol," Environ. Sci. Technol., 29, 2974-2981 (1995).
Devahasdin, S., Fan, C., Li, K. and Chen, D. H., " $TiO_{2}$ Photocatalytic Oxidation of Nitric Oxide: Transient Behavior and Reaction Kinetics," J. Photochem. Photobiol. A-Chem., 156, 161-170 (2003).
Lim, K. H., Park, S. W., Lee, E. J. and Hong, S. H., "Treatment of Mixed Solvent Vapors with Hybrid System Composed of Biofilter and Photo-catalytic Reactor," Korean J. Chem Eng., 22(1), 70-79(2005).
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