Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Transition metals-incorporated zeolites as environmental catalysts for indoor air ozone decomposition

Abstract : The present study aimed to prepare catalysts of Fe- and Cu-loaded zeolite via ion-exchange technique using dilute solutions of metal nitrate precursors followed by calcination at 600°C in the air for 4 h. Commercial zeolite ZSM-5 with specific surface area of 400 m2/g and diameter particle of 1.2-2 mm was used as a parent support. The prepared catalysts were characterized by Fourier transform infrared spectroscopy analysis. The IR absorbed bands of Cu-ZSM-5 and Fe-ZSM-5 revealed a shift in the frequency and a reduction in the intensity framework. This indicates that both catalysts have a significant change in the number of the zeolite structure bonds. The catalytic activity of the prepared materials compared to the parent zeolite was evaluated for the catalytic ozone decomposition. The ozone stream of the initial concentration (13 g/m3) with air flow rate (Q) of 0.18 m3/h was passed through a glass jacket column reactor filled with a fixed bed of 40 g zeolites. It was showed that the ozone removal efficiency by Cu-ZSM-5 and Fe-ZSM-5 was obviously higher than that found with the parent ZSM-5. In terms of O3 removal efficiency, zeolite samples could be ranked as follows: Fe-ZSM-5 > Cu-ZSM-5> parent ZSM-5. The results revealed about 90% O3 removal efficiency for Fe-ZSM-5 and 70% for Cu-ZSM-5 as compared to nearly 40% for the parent zeolite. Consequently, the incorporation of Fe and Cu metals onto the zeolite surface plays a key role for enhancing the gaseous ozone elimination
Complete list of metadata

Cited literature [49 references]  Display  Hide  Download
Contributor : Open Archive Toulouse Archive Ouverte (OATAO) Connect in order to contact the contributor
Submitted on : Wednesday, December 12, 2018 - 12:02:01 PM
Last modification on : Monday, July 4, 2022 - 9:40:35 AM
Long-term archiving on: : Wednesday, March 13, 2019 - 1:49:42 PM


Files produced by the author(s)




Elham Farouk Mohamed, Gamal Awad, Hicham Zaitan, Caroline Andriantsiferana, Marie-Hélène Manero. Transition metals-incorporated zeolites as environmental catalysts for indoor air ozone decomposition. Environmental Technology, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2018, 39 (7), pp.878-886. ⟨10.1080/09593330.2017.1315457⟩. ⟨hal-01952618⟩



Record views


Files downloads