Fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

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1 PHOTOCATALYTIC OXIDATION OF GASEOUS PERCHLOROETHYLENE OVER TiO2-BASED PAINTS

MONTEIRO, R. A. R. ; SILVA, A. M. T. ; ÂNGELO, J. R. M. ; MENDES, A. M. ; BOAVENTURA, R. A. R. ; VILAR, V. J. P. ;

Artigo:

Tetrachloroethylene (PCE) is a volatile chlorinated compound persistently present in indoor air of several industrial closed facilities. Due to its environmental and human health impact, efforts have been directed in the last decades towards the degradation of this kind of air pollutants. Photooxidation of PCE study was conducted in an annular photoreactor under simulated solar radiation employing a plastic structure coated with TiO2-based paint. The influence of coat thickness, structure configuration, PCE feed flow rate and concentration, relative humidity, and UV irradiance on the PCE degradation efficiencies was evaluated. Depending on the experimental conditions, up to 60 % of the initial PCE was converted.

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DOI: 10.5151/chemeng-cobeq2014-1980-16562-138365

Referências bibliográficas
  • [1] ÁGUIA, C., ÂNGELO, J., MADEIRA, L. M., MENDES, A. Influence of photocatalytic paint components on the photoactivity of P25 towards NO abatement. Catal. Today v. 151, p. 77-83, 2010 ÁGUIA, C., ÂNGELO, J., MADEIRA, L. M., MENDES, A. Photo-oxidation of NO using an exterior paint - screening of various commercial titania in powder pressed and paint films. J. Environ. Manage. v. 92, p. 1724-32, 2011 BAHNEMANN, D. Photocatalytic water treatment: solar energy applications. Sol. Energy v. 77, p. 445-459, 2004 CHANG, H. T., WU, N.-M., ZHU, F. A kinetic model for photocatalytic degradation of organic contaminants in a thin-film TiO2 catalyst. Water Res. v. 34, p. 407-416, 2000 DEMEESTERE, K., DEWULF, J., DE WITTE, B., BEELDENS, A., VAN LANGENHOVE, H. Heterogeneous photocatalytic removal of toluene from air on building materials enriched with TiO2. Build. Environ. v. 43, p. 406-414, 2008 HAYES, R. E., KOLACZKOWSKI, S. T., THOMAS, W. J. Finite-element model for a catalytic monolith reactor. Computers Andamp; Chemical Engineering v. 16, p. 645-657, 1992 HOFFMANN, M. R., MARTIN, S. T., CHOI, W., BAHNEMANN, D. W. Environmental Applications of Semiconductor Photocatalysis. Chem. Rev. v. 95, p. 69-96, 1995 JO, W. K., PARK, K. H. Heterogeneous photocatalysis of aromatic and chlorinated volatile organic compounds (VOCs) for non-occupational indoor air application. Chemosphere v. 57, p. 555-65, 2004 LANGRIDGE, J. M., GUSTAFSSON, R. J., GRIFFITHS, P. T., COX, R. A., LAMBERT, R. M., JONES, R. L. Solar driven nitrous acid formation on building material surfaces containing titanium dioxide: A concern for air quality in urban areas? Atmos. Environ. v. 43, p. 5128-5131, 2009 LIM, T. H. K., S. D. Trichloroethylene degradation by photocatalysis in annular flow and annulus fluidized bed photoreactors. Chemosphere v. 54, p. 305-312, 2004 LINSEBIGLER, A. L., LU, G., YATES, J. T. Photocatalysis on TiO2 Surfaces: Principles, Mechanisms, and Selected Results. Chem. Rev. v. 95, p. 735-758, 1995 LOPES, F. V. S., MONTEIRO, R. A. R., SILVA, A. M. T., SILVA, G. V., FARIA, J. L., MENDES, A. M., VILAR, V. J. P., BOAVENTURA, R. A. R. Insights into UV-TiO2 photocatalytic degradation of PCE for air decontamination systems. Chem. Eng. J. v. 204–206, p. 244-257, 2012 MAGGOS, T., BARTZIS, J. G., LIAKOU, M., GOBIN, C. Photocatalytic degradation of NOx gases using TiO2-containing paint: a real scale study. J. Hazard. Mater. v. 146, p. 668-673, 2007 POON, C. S., CHEUNG, E. NO removal efficiency of photocatalytic paving blocks prepared with recycled materials. Construction and Building Materials v. 21, p. 1746-1753, 2007 SOUSA, V. M., MANAIA, C. M., MENDES, A., NUNES, O. C. Photoinactivation of various antibiotic resistant strains of Escherichia coli using a paint coat. J. Photoch. Photobio. A v. 251, p. 148-153, 2013 YAMAZAKI, S., TSUKAMOTO, H., ARAKI, K., TANIMURA, T., TEJEDOR-TEJEDOR, I., ANDERSON, M. A. Photocatalytic degradation of gaseous tetrachloroethylene on porous TiO2 pellets. Appl. Catal. B: Environ. v. 33, p. 109-117, 2001
Como citar:

MONTEIRO, R. A. R.; SILVA, A. M. T.; ÂNGELO, J. R. M.; MENDES, A. M.; BOAVENTURA, R. A. R.; VILAR, V. J. P.; "1 PHOTOCATALYTIC OXIDATION OF GASEOUS PERCHLOROETHYLENE OVER TiO2-BASED PAINTS", p. 9527-9534 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-1980-16562-138365

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