Quantification of the Environmental Benefits of Ultrafine/Nanotitanium Dioxide Photocatalyst Coatings for Concrete Pavement Using Hybrid Life-Cycle Assessment
Publication: Journal of Infrastructure Systems
Volume 16, Issue 2
Abstract
The use of titanium dioxide ultrafine particulates as coating for concrete pavement have received considerable attention in recent years as these coatings can trap and absorb organic and inorganic air pollutants by a photocatalytic process. Despite these promising benefits, the promotion of coatings based on a single factor such as air quality does not provide a complete evaluation of this technology and may omit critical environmental factors that should be considered in the selection of sustainable materials. The objective of this study was to determine the life-cycle assessment of coating technology based on a hybrid life-cycle methodology. To achieve this objective, a life-cycle inventory that quantifies the energy, abiotic raw material inputs, and emission of coatings from cradle to grave were developed. Based on this inventory, life-cycle impact assessment of coatings for concrete pavement was conducted using the BEES impact assessment model. The use of titanium dioxide coating reduces the concentration of harmful pollutants by a photocatalytic process, and therefore, reduces the environmental impacts in four main categories: acidification, eutrophication, criteria air pollutants, and smog formation. However, during the production phases and due to the consumption of fossil energy, titanium dioxide will cause an increase in global warming, fossil fuel depletion, water intake, ozone depletion, and impacts on human health. Based on the overall environmental performance of this product, life-cycle assessment shows that titanium dioxide coating has an overall beneficial effect on the environment.
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Acknowledgments
The writer acknowledges the assistance of R. K. Ardoin of the Concrete and Aggregate Association of Louisiana, and Evonik Degussa Corporation for providing this research with valuable data and information.
References
Bare, J., Norris, G., Pennington, D., and McKone, T. (2002). “TRACI: The tool for the reduction and assessment of chemical and other environmental impact.” J. Ind. Ecol., 6(3–4), 49–78.
Beeldens, A. (2006). “An environmentally friendly solution for air purification and self cleaning effect: The application of as photocatalyst in concrete.” Proc., Transport Research Arena Europe—TRA, Göteborg, Sweden.
Benedix, R., Dehn, F., Quaas, J., and Orgass, M. (2000). “Application of titanium dioxide photocatalysis to create self cleaning building materials.” Lacer, 5, 157–168.
Bergman, C. (2004). “2003 status report shows U.S. air cleanest ever since 1970.” EPA, ⟨www.EPA.gov⟩ (May 22, 2008).
Bilmes, S., Mandelbaum, P., Alvarez, F., and Victoria, N. (2000). “Surface and electronic structure of titanium dioxide photocatalyst.” J. Phys. Chem. B, 104, 9851–9858.
Carnegie Mellon University Green Design Institute. (2008). “Economic input-output life-cycle assessment (EIO-LCA) model.” ⟨http://www.eiolca.net/⟩ (May 20, 2008).
Dalton, P., Janes, P., Jones, N., Nicholson, J., Hallam, K., and Allen, G. (2002). “Oxidation of gases using : A surface spectroscopic approach.” Environ. Pollut., 120, 415–422.
Demeestere, K., Dewulf, J., De Witte, B., Beeldens, A., and Van Langenhove, H. (2008). “Heterogeneous photocatalytic removal of toluene from air on building materials enriched with .” Build. Environ., 43, 406–414.
Donnelly, J. (2007). “Bush calls for rules to reduce emissions, orders EPA to target climate change.” The Boston Globe, ⟨http://www.boston.com/news/nation/washington/articles/2007/05/15/⟩ (May 18, 2008).
Fujishima, A., Rao, T., and Tryk, D. (2000). “Titanium dioxide photocatalysis.” J. Photochem. Photobiol. C, 1, 1–21.
Fujishima, A., and Zhang, X. (2006). “Titanium dioxide photocatalysis: Present situation and future approaches.” C. R. Chim., 9, 750–760.
Gerilla, G. P., Teknomo, K., and Hokao, K. (2007). “An environmental assessment of wood and steel reinforced concrete housing construction.” Build. Environ., 42, 2778–2784.
Grotz, S., and Scholl, G. (1996). “Application of LCA in German industry—Results of a survey.” Int. J. Life Cycle Assess., 1(4), 226–230.
Hendrickson, C. T., Horvath, A., Joshi, S., and Lave, L. B. (1998). “Economic input-output models for environmental life-cycle assessment.” Environ. Sci. Technol., 32(4), 184A–191A.
International Organization for Standardization. (1997). “Environmental management—Life-cycle assessment—Principals and framework.” ISO 14040, Geneva.
Jaworski, N. A., Howarth, R. W., and Hetling, L. J. (1997). “Atmospheric deposition of nitrogen oxides onto the landscape contributes to coastal eutrophication in the northeast United States.” Environ. Sci. Technol., 31(7), 1995–2004.
Li, H., Zhang, M., and Ou, J. -P. (2006). “Abrasion resistance of concrete containing nano-particles for pavement” Wear, 260(11-12), 1262–1266.
Li, H., Zhang, M., and Ou, J. -P. (2007). “Flexural fatigue performance of concrete containing nano-particles for pavement.” Int. J. Fatigue, 29(7), 1292–1301.
Lippiat, B. (2007). “Building for environmental and economic sustainability (BEES).” Technical manual and user guide, National Institute of Standards and Technology, Wellington, ⟨http://www.bfrl.nist.gov/oae/software/bees/bees.html⟩ (May 15, 2008).
Marceau, M. L., Nisbet, M., and Van Geem, M. (2007). “Life-cycle inventory of portland cement concrete.” Rep. No. PCA R&D Serial 3011, Portland Cement Association (PCA), Skokie, Ill.
Osterwalder, N., Capello, C., Hungerbuhler, K., and Stark, W. (2006). “Energy consumption during nanoparticle production: How economic is dry synthesis.” J. Nanopart. Res., 8, 1–9.
Poon, C., and Cheung, E. (2007). “No removal efficiency of photocatalytic paving blocks prepared with recycled materials.” Constr. Build. Mater., 21, 1746–1753.
Pozzo, R., Baltanas, M., and Cassano, A. (1997). “Supported titanium oxide as photocatalyst in water decontamination: State of the art.” Catal. Today, 39, 219–231.
Rebitzer, G., et al. (2004). “Life-cycle assessment. Part 1: Framework, goal and scope definition, inventory analysis, and applications.” Environ. Int., 30, 701–720.
Reck, E., and Richards, M. (1999). “Titanium dioxide manufacture and life-cycle analysis.” Pigment Research Technology, 28(3), 149–157.
Society of Environmental Toxicology and Chemistry (SETAC). (1993). Guidelines for life-cycle assessment: A code of practice, SETAC Workshop in Sesimbra, Brussels, Belgium.
Stark, W., and Pratsinis, S. (2002). “Aerosol flame reactors for manufacture of nanoparticles.” Powder Technol., 126, 103–108.
Suh, S., et al. (2004). “System boundary selection in life-cycle inventories using hybrid approaches.” Environ. Sci. Technol., 38(3), 657–664.
Toma, F. -L., Bertrand, G., Klein, D., Coddet, C., and Meunier, C. (2006). “Nanostructured photocatalytic titania coatings formed by suspension plasma spraying.” J. Therm. Spray Technol., 15(4), 587–592.
U.S. Census Bureau. (2002). “Construction sand and gravel—Mining.” Rep. No. ECO2-211-212321, U.S. Department of Commerce.
U.S. EPA. (2004). Factor information retrieval (FIRE) data system: Version 6.25, Office of Air Quality Planning and Standards, Research Triangle Park, N.C.
Van Hoof, G., Schowanek, D., and Feijtel, T. (2003). “Comparative life-cycle assessment of laundry detergent formulation in the UK.” Tenside, Surfactants, Deterg., 40(5), 266–275.
Watts, M., and Cooper, A. (2008). “Photocatalysis of 4-chlorophenol mediated by fixed to concrete surfaces.” Sol. Energy, 82, 206–211.
Zhu, W., Batros, P., and Porro, A. (2004). “Application of nanotechnology in construction: Summary of a state of the art report.” Mater. Struct., 37(9), 649–658.
Znaidi, L., Seraphimova, R., Bocquet, J., Colbeau-Justin, C., Pommier, C., and Semi, A. (2001). “Continuous process for the synthesis of nanosize 2 powders and their use as photocatalysts.” Mater. Res. Bull., 36, 811–825.
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© 2010 ASCE.
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Received: Nov 18, 2008
Accepted: Jun 26, 2009
Published online: Jul 14, 2009
Published in print: Jun 2010
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