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Wavelength-dependent photochemistry of acetaminophen in aqueous solutions. / Pozdnyakov, Ivan P.; Zhang, Xu; Maksimova, Tatiana A. et al.

In: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 274, 30.01.2014, p. 117-123.

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

Harvard

Pozdnyakov, IP, Zhang, X, Maksimova, TA, Yanshole, VV, Wu, F, Grivin, VP & Plyusnin, VF 2014, 'Wavelength-dependent photochemistry of acetaminophen in aqueous solutions', Journal of Photochemistry and Photobiology A: Chemistry, vol. 274, pp. 117-123. https://doi.org/10.1016/j.jphotochem.2013.10.006

APA

Pozdnyakov, I. P., Zhang, X., Maksimova, T. A., Yanshole, V. V., Wu, F., Grivin, V. P., & Plyusnin, V. F. (2014). Wavelength-dependent photochemistry of acetaminophen in aqueous solutions. Journal of Photochemistry and Photobiology A: Chemistry, 274, 117-123. https://doi.org/10.1016/j.jphotochem.2013.10.006

Vancouver

Pozdnyakov IP, Zhang X, Maksimova TA, Yanshole VV, Wu F, Grivin VP et al. Wavelength-dependent photochemistry of acetaminophen in aqueous solutions. Journal of Photochemistry and Photobiology A: Chemistry. 2014 Jan 30;274:117-123. doi: 10.1016/j.jphotochem.2013.10.006

Author

Pozdnyakov, Ivan P. ; Zhang, Xu ; Maksimova, Tatiana A. et al. / Wavelength-dependent photochemistry of acetaminophen in aqueous solutions. In: Journal of Photochemistry and Photobiology A: Chemistry. 2014 ; Vol. 274. pp. 117-123.

BibTeX

@article{dbe52aafabec42638fccd128fa64de90,
title = "Wavelength-dependent photochemistry of acetaminophen in aqueous solutions",
abstract = "The influence of irradiation wavelength and intensity on photochemistry of acetaminophen (APAP) in aqueous solution was investigated by combination of steady-state and laser flash photolysis as well as HPLC and LC-MS. Steady-state irradiation at 254 nm leads to APAP disappearance with the quantum yield 0.0014 and to formation of 1-(2-amino-5-hydroxyphenyl)ethanone (P1) as a main primary photo-Fries product. In opposite the laser excitation at 266 nm leads predominantly to two-photon ionization of APAP with the quantum yield 0.013 (I = 70 mJ/cm2) and to the formation of one main product of phenoxyl radical reactions - N-(3,4-dihydroxyphenyl)acetamide (P5). Steady-state excitation at 282 nm leads to both P1 and P5 products formation indicating competition of photo-Fries and photoionization processes. The wavelength-dependent mechanism of APAP photolysis is proposed and discussed.",
keywords = "Acetaminophen, Phenoxyl radical, Photo-Fries reaction, Photodegradation, Photoionization, Water treatment",
author = "Pozdnyakov, {Ivan P.} and Xu Zhang and Maksimova, {Tatiana A.} and Yanshole, {Vadim V.} and Feng Wu and Grivin, {Vjacheslav P.} and Plyusnin, {Victor F.}",
note = "Funding Information: The work was financially supported by Russian Foundation for Fundamental Research (Grants 11-03-00268 , 12-03-00482 , 12-03-91153-GFEN ), NSFC-RFBR Grants ( 21211120159 and 21281220200 ), National Natural Science Foundation of China (Grant No. 21207104 ), Natural Science Foundation of Hubei Province ( 2011CDB274 ) and the Youth Chenguang Project of Science and Technology of Wuhan City ( 2013070104010009 ). ",
year = "2014",
month = jan,
day = "30",
doi = "10.1016/j.jphotochem.2013.10.006",
language = "English",
volume = "274",
pages = "117--123",
journal = "Journal of Photochemistry and Photobiology A: Chemistry",
issn = "1010-6030",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Wavelength-dependent photochemistry of acetaminophen in aqueous solutions

AU - Pozdnyakov, Ivan P.

AU - Zhang, Xu

AU - Maksimova, Tatiana A.

AU - Yanshole, Vadim V.

AU - Wu, Feng

AU - Grivin, Vjacheslav P.

AU - Plyusnin, Victor F.

N1 - Funding Information: The work was financially supported by Russian Foundation for Fundamental Research (Grants 11-03-00268 , 12-03-00482 , 12-03-91153-GFEN ), NSFC-RFBR Grants ( 21211120159 and 21281220200 ), National Natural Science Foundation of China (Grant No. 21207104 ), Natural Science Foundation of Hubei Province ( 2011CDB274 ) and the Youth Chenguang Project of Science and Technology of Wuhan City ( 2013070104010009 ).

PY - 2014/1/30

Y1 - 2014/1/30

N2 - The influence of irradiation wavelength and intensity on photochemistry of acetaminophen (APAP) in aqueous solution was investigated by combination of steady-state and laser flash photolysis as well as HPLC and LC-MS. Steady-state irradiation at 254 nm leads to APAP disappearance with the quantum yield 0.0014 and to formation of 1-(2-amino-5-hydroxyphenyl)ethanone (P1) as a main primary photo-Fries product. In opposite the laser excitation at 266 nm leads predominantly to two-photon ionization of APAP with the quantum yield 0.013 (I = 70 mJ/cm2) and to the formation of one main product of phenoxyl radical reactions - N-(3,4-dihydroxyphenyl)acetamide (P5). Steady-state excitation at 282 nm leads to both P1 and P5 products formation indicating competition of photo-Fries and photoionization processes. The wavelength-dependent mechanism of APAP photolysis is proposed and discussed.

AB - The influence of irradiation wavelength and intensity on photochemistry of acetaminophen (APAP) in aqueous solution was investigated by combination of steady-state and laser flash photolysis as well as HPLC and LC-MS. Steady-state irradiation at 254 nm leads to APAP disappearance with the quantum yield 0.0014 and to formation of 1-(2-amino-5-hydroxyphenyl)ethanone (P1) as a main primary photo-Fries product. In opposite the laser excitation at 266 nm leads predominantly to two-photon ionization of APAP with the quantum yield 0.013 (I = 70 mJ/cm2) and to the formation of one main product of phenoxyl radical reactions - N-(3,4-dihydroxyphenyl)acetamide (P5). Steady-state excitation at 282 nm leads to both P1 and P5 products formation indicating competition of photo-Fries and photoionization processes. The wavelength-dependent mechanism of APAP photolysis is proposed and discussed.

KW - Acetaminophen

KW - Phenoxyl radical

KW - Photo-Fries reaction

KW - Photodegradation

KW - Photoionization

KW - Water treatment

UR - http://www.scopus.com/inward/record.url?scp=84887133074&partnerID=8YFLogxK

U2 - 10.1016/j.jphotochem.2013.10.006

DO - 10.1016/j.jphotochem.2013.10.006

M3 - Article

AN - SCOPUS:84887133074

VL - 274

SP - 117

EP - 123

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

SN - 1010-6030

ER -

ID: 34440278