Biocatalytic coatings for air pollution control: a proof of concept study on VOC biodegradation.

Published

Journal Article

Although biofilm-based biotechnologies exhibit a large potential as solutions for off-gas treatment, the high water content of biofilms often causes pollutant mass transfer limitations, which ultimately limit their widespread application. The present study reports on the proof of concept of the applicability of bioactive latex coatings for air pollution control. Toluene vapors served as a model volatile organic compound (VOC). The results showed that Pseudomonas putida F1 cells could be successfully entrapped in nanoporous latex coatings while preserving their toluene degradation activity. Bioactive latex coatings exhibited toluene specific biodegradation rates 10 times higher than agarose-based biofilms, because the thin coatings were less subject to diffusional mass transfer limitations. Drying and pollutant starvation were identified as key factors inducing a gradual deterioration of the biodegradation capacity in these innovative coatings. This study constitutes the first application of bioactive latex coatings for VOC abatement. These coatings could become promising means for air pollution control.

Full Text

Duke Authors

Cited Authors

  • Estrada, JM; Bernal, OI; Flickinger, MC; Muñoz, R; Deshusses, MA

Published Date

  • February 2015

Published In

Volume / Issue

  • 112 / 2

Start / End Page

  • 263 - 271

PubMed ID

  • 25115963

Pubmed Central ID

  • 25115963

Electronic International Standard Serial Number (EISSN)

  • 1097-0290

International Standard Serial Number (ISSN)

  • 0006-3592

Digital Object Identifier (DOI)

  • 10.1002/bit.25353

Language

  • eng