Photo-oxidation by singlet oxygen generated on nanoporous silicon in a LED-powered reactor

Alexei Lapkin; V M Boddu; G N Aliev; B Goller; S Polisski; D Kovalev

doi:10.1016/j.cej.2007.04.013

Photo-oxidation by singlet oxygen generated on nanoporous silicon in a LED-powered reactor

Alexei Lapkin, V M Boddu, G N Aliev, B Goller, S Polisski, D Kovalev

Research output: Contribution to journal › Article › peer-review

38 Citations (SciVal)

Abstract

An annular flow photochemical reactor illuminated by UV and green (524 nm) light emitting diodes (LEDs) was characterised by a chemical actinometer. Very high efficiency of absorption of photons, most likely promoted by the specific orientation of LED elements in the reactor, was calculated based on the measured actinometry results. Generation of singlet oxygen mediated by nanoporous silicon under illumination by Ar+ laser, UV and green LEDs was demonstrated by indirect measurement of suppression of porous Si photoluminescence, and by direct measurements of singlet oxygen luminescence. The efficiency of reactor in singlet oxygen mediated reactions was tested using reaction of decomposition of diphenylbenzofuran. Estimated quantum yield of chemical reaction is about 34%.

Original language	English
Pages (from-to)	331-336
Number of pages	6
Journal	Chemical Engineering Journal
Volume	136
Issue number	2-3
DOIs	https://doi.org/10.1016/j.cej.2007.04.013
Publication status	Published - 2008

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title = "Photo-oxidation by singlet oxygen generated on nanoporous silicon in a LED-powered reactor",

abstract = "An annular flow photochemical reactor illuminated by UV and green (524 nm) light emitting diodes (LEDs) was characterised by a chemical actinometer. Very high efficiency of absorption of photons, most likely promoted by the specific orientation of LED elements in the reactor, was calculated based on the measured actinometry results. Generation of singlet oxygen mediated by nanoporous silicon under illumination by Ar+ laser, UV and green LEDs was demonstrated by indirect measurement of suppression of porous Si photoluminescence, and by direct measurements of singlet oxygen luminescence. The efficiency of reactor in singlet oxygen mediated reactions was tested using reaction of decomposition of diphenylbenzofuran. Estimated quantum yield of chemical reaction is about 34\%.",

author = "Alexei Lapkin and Boddu, \{V M\} and Aliev, \{G N\} and B Goller and S Polisski and D Kovalev",

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doi = "10.1016/j.cej.2007.04.013",

language = "English",

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T1 - Photo-oxidation by singlet oxygen generated on nanoporous silicon in a LED-powered reactor

AU - Lapkin, Alexei

AU - Boddu, V M

AU - Aliev, G N

AU - Goller, B

AU - Polisski, S

AU - Kovalev, D

PY - 2008

Y1 - 2008

N2 - An annular flow photochemical reactor illuminated by UV and green (524 nm) light emitting diodes (LEDs) was characterised by a chemical actinometer. Very high efficiency of absorption of photons, most likely promoted by the specific orientation of LED elements in the reactor, was calculated based on the measured actinometry results. Generation of singlet oxygen mediated by nanoporous silicon under illumination by Ar+ laser, UV and green LEDs was demonstrated by indirect measurement of suppression of porous Si photoluminescence, and by direct measurements of singlet oxygen luminescence. The efficiency of reactor in singlet oxygen mediated reactions was tested using reaction of decomposition of diphenylbenzofuran. Estimated quantum yield of chemical reaction is about 34%.

AB - An annular flow photochemical reactor illuminated by UV and green (524 nm) light emitting diodes (LEDs) was characterised by a chemical actinometer. Very high efficiency of absorption of photons, most likely promoted by the specific orientation of LED elements in the reactor, was calculated based on the measured actinometry results. Generation of singlet oxygen mediated by nanoporous silicon under illumination by Ar+ laser, UV and green LEDs was demonstrated by indirect measurement of suppression of porous Si photoluminescence, and by direct measurements of singlet oxygen luminescence. The efficiency of reactor in singlet oxygen mediated reactions was tested using reaction of decomposition of diphenylbenzofuran. Estimated quantum yield of chemical reaction is about 34%.

UR - https://www.scopus.com/pages/publications/38649098742

UR - http://dx.doi.org/10.1016/j.cej.2007.04.013

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DO - 10.1016/j.cej.2007.04.013

M3 - Article

SN - 1385-8947

VL - 136

SP - 331

EP - 336

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

IS - 2-3

ER -

Photo-oxidation by singlet oxygen generated on nanoporous silicon in a LED-powered reactor

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