Air Purification Performance of Photocatalytic Concrete Paving Blocks after Seven Years of Service

Wioletta Jackiewicz-Rek , Karol Chilmon

Abstract

This 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.
Author Wioletta Jackiewicz-Rek (FCE / ICE)
Wioletta Jackiewicz-Rek,,
- The Institute of Civil Engineering
, Karol Chilmon (FCE / ICE)
Karol Chilmon,,
- The Institute of Civil Engineering
Total number of authors6
Journal seriesApplied Sciences-Basel, ISSN 2076-3417, (A 25 pkt)
Issue year2019
Vol9
No9
Pages1-9
Publication size in sheets0.5
Keywords in English: photocatalytic concrete pavement; NO reduction; SEM analysis
ASJC Classification1507 Fluid Flow and Transfer Processes; 1706 Computer Science Applications; 1508 Process Chemistry and Technology; 2200 General Engineering; 3105 Instrumentation; 2500 General Materials Science
DOIDOI:10.3390/app9091735
Languageen angielski
File
air purification.pdf 3.44 MB
Score (nominal)25
ScoreMinisterial score = 25.0, 25-07-2019, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.801; WoS Impact Factor: 2017 = 1.689 (2) - 2017=1.855 (5)
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