Photocatalytic NOx /HRVOC/O3 Removal in Transportation Applications

The focus of the proposed research is intensive and thorough testing of two commercial photocatalytic coatings applied to portland cement concrete to provide accurate data that are representative of highway applications. While published laboratory data suggest that TiO2-based materials can remove NOx and VOCs from air samples, the tests have not been designed to be representative of outdoor air conditions. Laboratory tests have been designed for this proposal to emulate roadway conditions. The results of these data will be used to model the effects of using photocatalytic materials in the Houston-Galveston and Dallas-Fort Worth areas, predict the impact on air pollutant concentrations, and provide a cost-per-ton of pollutant removal among other metrics. Long-term outdoor exposure tests have been designed to examine the performance of the materials in real near-roadway locations in three different locations with varying pollutant concentrations and environmental conditions. Another critical component of the testing will be material evaluation, examining the effects of the concrete substrate on photocatalysis, the effect of the photocatalytic process on material degradation, and the longevity of the material.


  • English


  • Status: Completed
  • Contract Numbers:


  • Sponsor Organizations:

    Texas Department of Transportation

    125 E. 11th Street
    Austin, TX  United States  78701-2483
  • Project Managers:

    Odell, Wade

  • Performing Organizations:

    University of Texas, Austin

    Center for Transportation Research
    Austin, TX  United States 
  • Principal Investigators:

    Juenger, Maria

  • Start Date: 20100901
  • Expected Completion Date: 0
  • Actual Completion Date: 20161231
  • Source Data: RiP Project 27717

Subject/Index Terms

Filing Info

  • Accession Number: 01567236
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-6636
  • Files: RiP, STATEDOT
  • Created Date: Jun 26 2015 1:01AM