Modeling of photocatalytic oxidation reactor for methyl ethyl ketone removal from indoor environment: Systematic model development and validation

Malayeri, Mojtaba; Lee, Chang-Seo; Haghighat, Fariborz

doi:10.1016/j.cej.2020.128265

Cited by 18 publications

(1 citation statement)

References 27 publications

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“…Particularly, acetaldehyde is one of the main indoor pollutants due to its carcinogenicity and ubiquitous diffusion. Furthermore, these compounds are degradation intermediates of a wide range of pollutants like methylethylketone [20,21], acetone [22], toluene [23,24], ethyl acetate [25]. Owning to their relatively simple molecular structure (only two carbon atoms), they are often used as model molecules in both experimental and theoretical studies for three broad classes of VOCs (alcohols, aldehydes, and carboxylic acids).…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic removal of gaseous ethanol, acetaldehyde and acetic acid: from a fundamental approach to real cases

Pargoletti

Rimoldi

Meroni

et al. 2022

International Materials Reviews

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The photocatalytic oxidation of volatile organic compounds (VOCs) has been extensively investigated. With respect to water treatment, photocatalytic degradation of air pollutants is still less understood, but this has not prevented photocatalytic building materials and air purifiers to reach the market. Here, we provide a selective overview of the current understanding on VOC photocatalytic oxidation, focusing on ethanol, acetaldehyde, and acetic acid. Among the main indoor pollutants, these molecules are also oxidation intermediates of numerous VOCs. Their adsorption at the photocatalyst surface is first presented, based on theoretical and experimental evidence. Reaction intermediates are discussed, comparing proposed reaction mechanisms. The role of the photocatalyst features in directing adsorption and oxidation phenomena is highlighted, encompassing both TiO2 and emerging photocatalysts. We then critically discuss gaps in our knowledge, such as the effect of air humidity, multi-pollutant interactions and deactivation pathways. Finally, attempts to model VOC degradation in realistic conditions are reviewed.

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