Effect of the morphology and pore structure of porous building materials on photocatalytic oxidation of air pollutants

Research output: Contribution to journalArticleAcademicpeer-review

21 Citations (Scopus)
247 Downloads (Pure)

Abstract

This study focuses on the effect of the morphology and the pore structure of two different porous substrates, namely wood-wool cement board (WWCB) and autoclaved aerated concrete (AAC), on the air pollutant removal efficiency by photocatalytic oxidation (PCO). Their rough surface and porous structure make them appealing choices for nitric oxide (NO) de-pollution, under indoor conditions. In-depth material characterization of the two substrates is realized in order to understand the effect of the porosity, roughness and surface area on the PCO efficiency, at different air flow rates. PCO assessment shows that both activated substrates can degrade up to 99% of NO. The morphology and pore structure analyses of the two substrates reveal that a high effective area and roughness increases the PCO efficiency and an open pore structure allows a better air flow, avoiding NO2 release.

Original languageEnglish
Pages (from-to)123-131
Number of pages9
JournalApplied Catalysis. B, Environmental
Volume227
DOIs
Publication statusPublished - 5 Jul 2018

Keywords

  • CFD simulation
  • Morphology
  • Nitric oxide
  • Photocatalytic efficiency
  • Pore structure

Fingerprint Dive into the research topics of 'Effect of the morphology and pore structure of porous building materials on photocatalytic oxidation of air pollutants'. Together they form a unique fingerprint.

Cite this