Abstract
Abstract The photoactivity of TiO2-bearing construction materials was assessed with nitroblue tetrazolium (NBT) ink. The photocatalytic reaction was monitored with UV–vis diffuse reflectance spectroscopy, colorimetry and digital image processing. The results delivered by the three datasets were linearly related, even though the experimental setup was inexpensive and involved only handheld instruments. The NBT reduction and ISO 22197-1 oxidative NOx removal findings also proved to be acceptably linear, may, then, be promising alternatives to conventional NOx photocatalytic performance testing. The advantages of the procedure proposed over conventional testing include convenience of use, time savings, in-situ applicability, readily distinguishable colour change and low cost.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
