JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Application of Light-emitting-diodes to Annular-type Photocatalytic Reactor for Removal of Indoor-level Benzene and Toluene
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Application of Light-emitting-diodes to Annular-type Photocatalytic Reactor for Removal of Indoor-level Benzene and Toluene
Jo, Wan-Kuen; Kang, Hyun-Jung; Kim, Kun-Hwan;
  PDF(new window)
 Abstract
Unlike water applications, the photocatalytic technique utilizing light-emitting-diodes as an alternative light source to conventional lamp has rarely been applied for low-level indoor air purification. Accordingly, this study investigated the applicability of UV-LED to annular-type photocatalytic reactor for removal of indoor-level benzene and toluene at a low concentration range associated with indoor air quality issues. The characteristics of photocatalyst was determined using an X-ray diffraction meter and a scanning electron microscope. The photocatalyst baked at exhibited the highest photocatalytic degradation efficiencies(PDEs) for both benzene and toluene, and the photocatalysts baked at three higher temperatures(450, 550, and ) did similar PDEs for these compounds. The average PDEs over a 3-h period were 81% for benzene and close to 100% for toluene regarding the photocatalyst baked at , whereas they were 61 and 74% for benzene and toluene, respectively, regarding the photocatalyst baked at . As the light intensity increased from 2.4 to 3.5 MW , the average PDE increased from 36 to 81% and from 44% to close to 100% for benzene and toluene, respectively. In addition, as the flow rate increased from 0.1 to 0.5 L , the average PDE decreased from 81% to close to zero and from close to 100% to 7% for benzene and toluene, respectively. It was found that the annular-type photocatalytic reactor inner-inserted with UV-LEDs can effectively be applied for the decomposition of low-level benzene and toluene under the operational conditions used in this study.
 Keywords
Photocatalytic degradation;Light-emitting-diode;Baking temperature;Light intensity;Flow rate;
 Language
English
 Cited by
 References
1.
Aissa, A. H., Puzenat, E., Plassais, A., Herrmann, J. -M., Haehnel, C., Guillard, C., 2011, Characterization and photocatalytic performance in air of cementitious materials containing $TiO_2$. Case study of formaldehyde removal, Appl. Catal. B, 107, 1-8. crossref(new window)

2.
Augugliaro, V., Litter, M., Palmisano, L., Soria, J., 2006, The combination of heterogeneous photocatalysis with chemical and physical operations: a tool for improving the photoprocess performance, J. Photochem. Photobiol. C, 7, 127-144. crossref(new window)

3.
Balazs, N., Mogyorosi, K., Sranko, D. F., Pallagi, A., Alapi, T., Oszko, A., Dombi, A., Sipos, P., 2008, The effect of particle shape on the activity of nanocrystalline $TiO_2$ photocatalysts in phenol decomposition, Appl. Catal. B, 84, 356-362. crossref(new window)

4.
Boughelouma, C., Messalhi, A., 2009,. Photocatalytic degradation of benzene derivatives on $TiO_2$ catalyst, Phys. Proc., 2, 1055-1058. crossref(new window)

5.
Chen, H. W., Ku, Y., Irawan, A., 2007, Photodecomposition of o-cresol by UV LED/TiO2 process with controlled periodic illumination, Chemosphere, 69, 184-190. crossref(new window)

6.
Choi, H., Stathatos, E., Dionysiou, D. D., 2007, Photocatalytic $TiO_2$ films and membranes for the development of efficient wastewater treatment and reuse systems, Desalination, 202, 199-206. crossref(new window)

7.
Demeestere, K., Dewulf, J., Ohno, T., Salgado, P. H., Van Langenhove, H., 2005, Visible light mediated photocatalytic degradation of gaseous trichloroethylene and dimethyl sulfide on modified titanium dioxide, Appl. Catal. B, 61, 140-149. crossref(new window)

8.
Fujishima, A., Zhang, X., Tryk, D. A., 2007, Heterogeneous photocatalysis: Fromwater photolysis to applications in environmental cleanup, Int. J. Hydrogen Ener., 32, 2664-2672. crossref(new window)

9.
Haninen, O. O., Lebret, E., Ilacqua, V., Katsouyanni, K., Kunzli, N., Sram, M., Jantunen, M., 2004, Infiltration of ambient PM2.5 and levels of indoor generated non-ETS in residences of four European cities, Atmos. Environ., 38, 64116423. crossref(new window)

10.
Henderson, M. A., 2011, A surface science perspective on $TiO_2$ photocatalysis, Surf. Sci. Rep. 66, 185-297. crossref(new window)

11.
IARC(International Agency for Research on Cancer), 2004, Monographs on the evaluation of the carcinogenic risks of chemicals to man, WHO, Geneva.

12.
Jia, C., Batterman, S., Godwin, C., 2008, VOCs in industrial, urban and suburban neighborhoods Part 2: factors affecting indoor and outdoor concentrations, Atmos. Environ., 42, 2101-2116. crossref(new window)

13.
Liu, B., Zhao, X., 2010, A kinetic model for evaluating the dependence of the quantum yield of nano-$TiO_2$ based photocatalysis on light intensity, grain size, carrier lifetime, and minority carrier diffusion coefficient: Indirect interfacial charge transfer, Electrochim. Acta, 55, 4062-4070. crossref(new window)

14.
Lu, C. -Y., Wey, M. -Y., 2007, Simultaneous removal of VOC and NO by activated carbon impregnated with transition metal catalysts in combustion flue gas, Fuel Proc. Technol., 88, 557-567. crossref(new window)

15.
Mansilla, H. D., Mora, A., Pincheira, C., Mondaca, M. A., Marcato, P. D., Duran, N., Freer, J., 2007, New photocatalytic reactor with $TiO_2$ coating on sintered glass cylinders, Appl. Catal. B 76, 57-63. crossref(new window)

16.
Nosaka, Y., Matsushita, M., Nishino, J., Nosaka, A. Y., 2005, Nitrogen-doped titanium dioxide photocatalysts for visible reponse prepared by using organic compounds, Sci. Technol. Adv. Mater., 6, 143-148. crossref(new window)

17.
Ohno, T., Akiyoshi, M., Umebayashi, T., Asai, K., Mitsui, T., Matsumura, M., 2004, Preparation of S-doped $TiO_2$ photocatalysts and their photocatalytic activities under visible light, Appl. Catal. 265, 115-121. crossref(new window)

18.
Ohura, T., Amagai, T., Shen, X., Li, S., Zhang, P., Zhu, L., 2009, Comparative study on indoor air quality in Japan and China: characteristics of residential indoor and outdoor VOCs, Atmos. Environ., 43, 6352-6359. crossref(new window)

19.
Perez-Rial, D., Lopez-Mahia, P., Tauler, R., 2010, Investigation of the source composition and temporal distribution of volatile organic compounds (VOCs) in a suburban area of the northwest of Spain using chemometric methods, Atmos. Environ., 44, 5122-5132. crossref(new window)

20.
Revilla, A. S., Pestana, C. R., Pardo-Andreu, G. L., Santos, A. C., Uyemura, S. A., Gonzales, M. E., Curti, C., 2007, Potential toxicity of toluene and xylene evoked by mitochondrial uncoupling, Toxicol.Vitro, 21, 782-788. crossref(new window)

21.
Roukos, J., Riffault, V., Locoge, N., Plaisance, H., 2009, VOC in an urban and industrial harbor on the French North Sea coast during two contrasted meteorological situations, Environ. Poll., 157, 3001-3009. crossref(new window)

22.
Sakkas, V. A., Islam, M. A., Stalikas, C., Albanis, T. A., 2010, Photocatalytic degradation using design of experiments: A review and example of the Congo red degradation, J. Hazard. Mater., 175, 33-44. crossref(new window)

23.
Schlink, U., Thiem, A., Kohajda, T., Richter, M., Strebel, K., 2010, Quantile regression of indoor air concentrations of volatile organic compounds (VOC), Sci. Total Environ., 408, 3840-3851. crossref(new window)

24.
Sekiguchi, K., Morinaga, W., Sakamoto, K., Tamura, H., Yasui, F., Mehrjouei, M., Mller, S., Mller, D., 2010, Degradation of VOC gases in liquid phase by photocatalysis at the bubble Interface, Appl. Catal. B, 97, 190-197. crossref(new window)

25.
Shie, J. L., Lee, C. H., Chiou, C. S., Chang, C. T., Chang, C. C., Chang, C. Y., 2008, Photodegaradation kinetics of formaldehyde using light sources of UVA, UVC and UVLED in the presence of composed silver titanium oxide photocatalyst, J. Hazard. Mater., 155, 164-172. crossref(new window)

26.
Van Gerven, T., Mul, G., Moulijn, J., Stankiewicz, A., 2007, A review of intensification of photocatalytic processes, Chem. Eng. Prog., 46, 781-789. crossref(new window)

27.
Yang, L., Liu, Z., 2007, Study on light intensity in the process of photocatalytic degradation of indoor gaseous formaldehyde for saving energy, Ener. Conv. Manage., 48, 882-889. crossref(new window)

28.
Yang, L., Liu, Z., Shi, J., Hu, H., Shangguan, W., 2007, Design consideration of photocatalytic oxidation reactors using $TiO_2$-coated foam nickels for degrading indoor gaseous formaldehyde, Catal. Today, 126, 359-368. crossref(new window)

29.
Yu, Q. L., Brouwers, H. J. H., 2009, Indoor air purification using heterogeneous photocatalytic oxidation. part I: experimental study, Appl. Catal. B, 92, 454-461. crossref(new window)

30.
Zhang, G., Gong, J., Zou, X., He, F., Zhang, H., Zhang, Q., Liu, Y., Yang, X., Hu, B., 2006, Photocatalytic degradation of azo dye acid red G by $KNb_3O_8$ and the role of potassium in the photocatalysis, Chem. Eng. J., 123, 59-64. crossref(new window)

31.
Zhao, J., Yang, X., 2003, Photocatalytic oxidation for indoor air purification: a literature review, Build. Environ., 38, 645-654. crossref(new window)

32.
Zhao, J., Wan, P., Xiang, J., Tong, T., Dong, L., Gao, Z., Shen, X., Tong, H., 2011, Synthesis of highly ordered macro-mesoporous anatase $TiO_2$ film with high photocatalytic activity, Micropor. Mesopor Mater., 138, 200-206. crossref(new window)

33.
Znad, H., Kawase, Y., 2009, Synthesis and characterization of S-doped Degussa P25 with application in decolorization of Orange II dye as a model substrate, J. Mole. Catal. A, 314, 55-62. crossref(new window)