Skip to main content
SpringerLink
Log in

Photocatalytic degradation of trichloroethylene over TiO2/SiO2 in an annulus fluidized bed reactor

  • Published:
Korean Journal of Chemical Engineering Aims and scope Submit manuscript

Abstract

The effects of superficial gas velocity (Ug), wavelength and intensity of ultraviolet (UV) light, oxygen and H2O concentration on the photocatalytic degradation of TCE (Trichloroethylene) over TiO2/SiO2 catalyst have been determined in an annulus fluidized bed photoreactor. The key factor in determining the performance of the annulus fluidized bed photoreactor is found to be an optimum superficial gas velocity (Ug) that provides the optimum UV lighttransmit through the proper size of bubbles in the photoreactor. The degradation efficiency of TCE increases with light intensity but decreases with wavelength of the UV light and H2O concentration in the fluidized bed of TiO2/silica-gel photocatalyst. The optimum concentration of O2 for TCE degradation is found to be approximately 10%. The annulus fluidized bed photoreactor is an effective tool for high TCE degradation with efficient utilization of photon energy.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Coates, N.H. and Rice, R. L., “Sulfur Dioxide Reduction by Combustion of Coal in Fluidized Bed of Limestone,”AIChE Symp. Ser.,70, 124 (1974).

    CAS  Google Scholar 

  • Izumi, I., Dunn, W.W., Wilbourn, K.O., Fan, F. F. and Bard, A. J., “Heterogeneous Photocatalytic Oxidation of Hydrocarbons on Platinized TiO2 Powder,”J. Phys. Chem.,84, 3207 (1980).

    Article  CAS  Google Scholar 

  • Kim, S. B. and Hong, S. C., “Kinetic Study for Photocatalytic Degradation of Volatile Organic Compounds in Air Using Thin Film TiO2 Photocatalyst,”Appl. Catal. B: Environ.,35, 305 (2002).

    Article  Google Scholar 

  • Lim, T.H., Jeong, S. M., Kim, S.D. and Gyenis, J., “Photocatalytic Decomposition of NO by TiO2 Particles,”J. Photochem. Photobiol. A: Chem.,134, 209 (2000a).

    Article  CAS  Google Scholar 

  • Lim, T.H., Jeong, S. M., Kim, S.D. and Gyenis, J., “Degradation Characteristics of NO by Photocatalysis with TiO2 and CuO/TiO2,”React. Kinet. Catal. Lett.,71, 223 (2000b).

    Article  CAS  Google Scholar 

  • Matthews, R.W. and McEvoy, S. R., “A Comparison of 254 nm and 350 nm Excitation of TiO2 in Simple Photocatalytic Reactors,”J. Photochem. Photobiol. A: Chem.,66, 255 (1992).

    Article  Google Scholar 

  • Nimlos, M. R., Jacoby, W. A., Blake, D.M. and Milne, T. A., “Direct Mass Spectrometric Studies of the Destruction of Hazardous Wastes: Gas-phase Photocatalytic Oxidation of TCE over TiO2,”Environ. Sci. Technol.,27, 732 (1993).

    Article  CAS  Google Scholar 

  • Ollis, D. F., Pelizzetti, E. and Serpone, N., “Photocatalyzed Destruction of Water Contaminants,”Environ. Sci. Technol.,25, 1522 (1993).

    Article  Google Scholar 

  • Peral, J. and Ollis, D. F., “Heterogeneous Photocatalytic Oxidation of Gas-phase Organics for Air Purification: Acetone, 1-butanol, Butylaldehyde, Formaldehyde, and m-xylene Oxidation,”J. Catal.,136, 554 (1992).

    Article  Google Scholar 

  • Tanguat, J. F., Suib, S. L. and Coughlin, R.W., “Dichloromethane Photodegradation using TiO2 Catalyst,”J. Catal.,117, 335 (1989).

    Article  Google Scholar 

  • Wang, K. H., Tsai, H.H. and Hsieh, Y. H., “The Kinetics of Photocatalytic Degradation of TCE in Gas Phase over TiO2 Supported on Glass Bead,”Appl. Catal.B: Environ.,17, 313 (1998).

    Article  CAS  Google Scholar 

  • Wang, K.H., Tsai, H.H. and Hsieh, Y.H., “A Study of Photocatalytic Degradation of TCE in Vapor Phase over TiO2 Photocatalyst,”Chemosphere,36, 2763 (1998).

    Article  CAS  Google Scholar 

  • Yamazaki-Nishida, S., Nagano, K. J., Phillips, L. A., Cerverna-March, S. and Anderson, M. A., “Photocatalytic Degradation of TCE in the Gas-phase using TiO2 Pellets,”J. Photochem. Photobiol. A: Chem.,70, 95, (1993).

    Article  CAS  Google Scholar 

  • Yue, P. L. and Khan, F., “Photocatalytic Ammonia Synthesis in a Fluidized Bed Reactor,”Chem. Eng. Sci.,41, 171 (1983).

    Google Scholar 

  • Zhang, J., Ayusawa, T., Minagawa, M., Matsuoka, M. and Anpo, M., “Investigation of TiO2 Photocatalysts for the Decomposition of NO in the Flow System,”J. Catal.,198, 1, (2001).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemical and Biomolecular Engineering, Energy and Environment Research Center, Korea Advanced Institute of Science and Technology, 305-701, Daejeon, Korea

    Tak-Hyoung Lim & Sang-Done Kim

Authors
  1. Tak-Hyoung Lim
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Sang-Done Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Sang-Done Kim.

Additional information

This paper is dedicated to Professor Dong Sup Doh on the occasion of his retirement from Korea University.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lim, TH., Kim, SD. Photocatalytic degradation of trichloroethylene over TiO2/SiO2 in an annulus fluidized bed reactor. Korean J. Chem. Eng. 19, 1072–1077 (2002). https://doi.org/10.1007/BF02707235

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02707235

Key words

Search

Navigation