Air Purification Performance of Photocatalytic Concrete Paving Blocks after Seven Years of Service
Wioletta Jackiewicz-Rek , Karol Chilmon
AbstractThis paper presents the results of laboratory tests on photocatalytic pavement blocks from a bicycle lane in Poland after seven years of service. Air purification performance was tested on dusty and clean samples using different light sources and setups, with non-laminar gas circulation. Secondary Electrons Secondary Ions (SESI) and InLens detectors combined with SEM–EDS and X-ray analyses were applied to confirm the presence of TiO2 in the studied blocks. The obtained results show that TiO2 was present in the form of agglomerates with a diameter of 0.25–5 µm and was bonded to the cement matrix components. The tested samples still maintained nitric oxide (NO) removal capability with a NO reduction rate of 4–45%, depending on light source and surface cleanliness.
|Total number of authors||6|
|Journal series||Applied Sciences-Basel, ISSN 2076-3417|
|Publication size in sheets||0.5|
|Keywords in English||: photocatalytic concrete pavement; NO reduction; SEM analysis|
|ASJC Classification||; ; ; ; ;|
|Score||= 70.0, 31-01-2020, ArticleFromJournal|
|Publication indicators||= 0; = 1; : 2018 = 0.985; : 2018 = 2.217 (2) - 2018=2.287 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.