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Effect of Removal Efficiency of Formaldehyde by Input Coating Concentration of Photocatalyst - with Study of Standardization of Coating Thickness -  

Park Young G. (Department of Chemical Engineering, Daejin University)
Han Man-So (Department of Chemistry Daejin University)
Publication Information
Journal of environmental and Sanitary engineering / v.20, no.4, 2005 , pp. 51-58 More about this Journal
Abstract
Photocatalytic degradation using $TiO_2$ Particles suspended in a reactor was experimentally performed to degrade the formaldehyde of indoor pollutants. Exponential increase of degradation appears to prove light availability due to the scattering of W light by particles themselves. Comparative removal studies of formaldehyde were done in both cases of dipping and spraying immobilized techniques of $TiO_2$ Particles suspended in solution. Experiments were performed under several different experimental conditions such as initial concentration of formaldehyde, UV intensity and concentration of photocatalysts. Optimal conditions to degrade formaldehyde were obtained under the conditions of $30\;mg/cm^2$ concentration of catalyst and UV intensity of 30 Watt at the distance of 30 cm using immobilized technique by dipping coating.
Keywords
UV light; photocatalyst; formaldehyde; indoor pollutant;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Kwon, T., Roo, W., Lee, C. and Lee, W. Preparation of wall paper coated with modified $TiO_2 and their photocatalytic effects for removal of NO in air. Korean Chem. Eng. Res. 43, 1-8, 2005
2 Joo, H., Jeon, M. and Lee, T. Photocatalysts : Theory and its application, J of Korean Society cf Environmental Engineers, 21, 1231-1240, 1999
3 Kim, S. and Shin, S. Decomposition of chlorinated acetaldehydes by suspended photocatalytic UV/$TiO_2/H_2O_2$ system, J. of Korean Society of Environmental Engineers, 21, 263-275, 1999
4 Kim, S. and Hong, S. Kinetic study for photocatalytic degradation of VOC in air using thin film $TiO_2$ photocatalysts, J. Appl. Catal, 35, 305-315, 2002   DOI   ScienceOn
5 Jeong, C. and Lee, K. A study on the reaction rate constant by UV photooxidation and photo-catalytic oxidation process, J. of the Environmental Science, 12, 37-40, 2004   과학기술학회마을   DOI
6 Lim, T., Jeong, S., Kim, S. and Hyenis, J. Photocatalytic decomposition of NO by $TiO_2$ particle, Photochem Photobio. A Chem, 121, 51-61, 1999
7 Kim, C. Experimental personal-report, 2005
8 Choi, Y. and Kim, B. Photocatalytic disinfection of E. coli in a UV/$TiO_2$immobilized optical-fibre reactor, J. Chem Tech and Biotech, 75, 1145-1150, 2000   DOI   ScienceOn