Selective Detection of NO2 with Specific Filters for O3 Trapping

Mehdi Othman (1) , Christophe Théron (2) , Marc Bendahan (1) , Charles Rivron (2) , Sandrine Bernardini (1) , Guillaume Le Chevallier (2) , Ludovic Caillat (2) , Khalifa Aguir (1) , Thu-Hoa Tran-Thi (2)

1 IM2NP - Institut des Matériaux, de Microélectronique et des Nanosciences de Provence
2 LEDNA - Laboratoire Edifices Nanométriques

The present study evaluates the ozone (O$_3$) and nitrogen dioxide (NO$_2$) removal performance of specific filters based on nanoporous materials. These materials, produced via the sol-gel process with functionalized silicon alkoxides as precursors, are tailored for O$_3$ trapping. The gas removal effectiveness of the filters was assessed through measurements of O$_3$ concentrations in the air upstream and downstream of the filters. Depending on the filter nature, O$_3$ can be totally trapped while NO$_2$ can pass over a specific concentration range.

Keywords: ozone; nitrogen dioxide; trapping efficiency; gas sensors; selective filter

Domains: Material chemistry

Mehdi Othman, Christophe Théron, Marc Bendahan, Charles Rivron, Sandrine Bernardini, et al.. Selective Detection of NO2 with Specific Filters for O3 Trapping. Proceedings, 2017, 1, pp.405. ⟨10.3390/proceedings1040405⟩. ⟨cea-01578915⟩