Please use this identifier to cite or link to this item:
https://doi.org/10.1021/ie701739g
DC Field | Value | |
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dc.title | Photocatalytic inactivation of airborne bacteria in a continuous-flow reactor | |
dc.contributor.author | Pal, A. | |
dc.contributor.author | Pehkonen, S.O. | |
dc.contributor.author | Yu, L.E. | |
dc.contributor.author | Ray, M.B. | |
dc.date.accessioned | 2014-10-08T08:33:14Z | |
dc.date.available | 2014-10-08T08:33:14Z | |
dc.date.issued | 2008-10-15 | |
dc.identifier.citation | Pal, A., Pehkonen, S.O., Yu, L.E., Ray, M.B. (2008-10-15). Photocatalytic inactivation of airborne bacteria in a continuous-flow reactor. Industrial and Engineering Chemistry Research 47 (20) : 7580-7585. ScholarBank@NUS Repository. https://doi.org/10.1021/ie701739g | |
dc.identifier.issn | 08885885 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/87586 | |
dc.description.abstract | In this study, a continuous annular reactor was used to characterize the TiO2-mediated inactivation of an aerosolized Gram-negative bacterium, Escherichia coli K-12 (ATCC 10798), by varying UV-A intensity (0.5-3.4 mW/cm2), relative humidity (RH) (from 51 ± 0.61 to 85 ± 4.7%), and photocatalyst loading (960 and 1516 mg/m2) at an air flow rate of 1 L/min. Inactivation rate of E. coli K-12 increased with an increase in TiO2 loading, UV-intensity, and RH. A UV-A dose of 0.03-0.204 J/cm2 at an average UV-A intensity of 0.5-3.4 mW/cm2, at a residence time of 1.1 min, is sufficient to fully and continuously inactivate E. coli K-12 passing through the reactor. The photocatalytic inactivation rates obtained in the continuous flow reactor compared well with our earlier batch inactivation rates conducted at a UV-A intensity of 0.015 mW/cm2 and a TiO2 loading of 1516 mg/m2. This demonstrates the possibility of scaling up of the photocatalytic inactivation process for bioaerosol based on batch kinetic data. © 2008 American Chemical Society. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/ie701739g | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | DIVISION OF ENVIRONMENTAL SCIENCE & ENGG | |
dc.description.doi | 10.1021/ie701739g | |
dc.description.sourcetitle | Industrial and Engineering Chemistry Research | |
dc.description.volume | 47 | |
dc.description.issue | 20 | |
dc.description.page | 7580-7585 | |
dc.description.coden | IECRE | |
dc.identifier.isiut | 000259904900010 | |
Appears in Collections: | Staff Publications |
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