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Photooxidation of herbicide amitrole in the presence of fulvic acid. / Pozdnyakov, Ivan P.; Sherin, Peter S.; Salomatova, Victoria A. et al.

In: Environmental Science and Pollution Research, Vol. 25, No. 21, 01.07.2018, p. 20320-20327.

Research output: Contribution to journalArticlepeer-review

Harvard

Pozdnyakov, IP, Sherin, PS, Salomatova, VA, Parkhats, MV, Grivin, VP, Dzhagarov, BM, Bazhin, NM & Plyusnin, VF 2018, 'Photooxidation of herbicide amitrole in the presence of fulvic acid', Environmental Science and Pollution Research, vol. 25, no. 21, pp. 20320-20327. https://doi.org/10.1007/s11356-017-8580-x

APA

Pozdnyakov, I. P., Sherin, P. S., Salomatova, V. A., Parkhats, M. V., Grivin, V. P., Dzhagarov, B. M., Bazhin, N. M., & Plyusnin, V. F. (2018). Photooxidation of herbicide amitrole in the presence of fulvic acid. Environmental Science and Pollution Research, 25(21), 20320-20327. https://doi.org/10.1007/s11356-017-8580-x

Vancouver

Pozdnyakov IP, Sherin PS, Salomatova VA, Parkhats MV, Grivin VP, Dzhagarov BM et al. Photooxidation of herbicide amitrole in the presence of fulvic acid. Environmental Science and Pollution Research. 2018 Jul 1;25(21):20320-20327. doi: 10.1007/s11356-017-8580-x

Author

Pozdnyakov, Ivan P. ; Sherin, Peter S. ; Salomatova, Victoria A. et al. / Photooxidation of herbicide amitrole in the presence of fulvic acid. In: Environmental Science and Pollution Research. 2018 ; Vol. 25, No. 21. pp. 20320-20327.

BibTeX

@article{65345c1b3d4b4383b9d7bbd950d2b7a1,
title = "Photooxidation of herbicide amitrole in the presence of fulvic acid",
abstract = "Fulvic acid (Henan ChangSheng Corporation) photoinduced degradation of non-UVA-absorbing herbicide amitrole (3-amino-1,2,4-triazole, AMT) as a way for its removal from polluted water was investigated in details. It was shown that the main primary species generated by fulvic acid under UVA radiation, triplet state and hydrated electron, are not directly involved in the herbicide degradation. AMT decays in reactions with secondary intermediates, reactive oxygen species, formed in reactions of the primary ones with dissolved oxygen. Singlet oxygen is responsible for 80% of herbicide oxidation, and •OH and O2−• radicals—for the remaining 20% of AMT. It was found that quantum yield of AMT photodegradation (ϕ365nm) decreases linearly from 2.2 × 10−3 to 1.2 × 10−3 with the increase of fulvic acid concentration from 1.1 to 30 mg L−1. On the contrary, the increase of AMT concentration from 0.8 to 25 mg L−1 leads to practically linear growth of ϕ365nm value from 1.8 × 10−4 to 4 × 10−3. Thus, the fulvic acid exhibits a good potential as UVA photooxidizer of organic pollutants sensitive to the singlet oxygen (ϕ532nm(1O2) = 0.025 at pH 6.5).",
keywords = "Amitrole, Fulvic acids, Herbicides, Photooxidation, Reactive oxygen species, TRIPLET-STATES, QUANTUM YIELDS, HYDRATED ELECTRONS, AQUEOUS-SOLUTION, RATE CONSTANTS, PHOTODEGRADATION, SINGLET OXYGEN, DISSOLVED ORGANIC-MATTER, RADICALS, PHOTOLYSIS",
author = "Pozdnyakov, {Ivan P.} and Sherin, {Peter S.} and Salomatova, {Victoria A.} and Parkhats, {Marina V.} and Grivin, {Vjacheslav P.} and Dzhagarov, {Boris M.} and Bazhin, {Nikolai M.} and Plyusnin, {Victor F.}",
note = "Publisher Copyright: {\textcopyright} 2017, Springer-Verlag Berlin Heidelberg.",
year = "2018",
month = jul,
day = "1",
doi = "10.1007/s11356-017-8580-x",
language = "English",
volume = "25",
pages = "20320--20327",
journal = "Environmental Science and Pollution Research",
issn = "0944-1344",
publisher = "Springer Science + Business Media",
number = "21",

}

RIS

TY - JOUR

T1 - Photooxidation of herbicide amitrole in the presence of fulvic acid

AU - Pozdnyakov, Ivan P.

AU - Sherin, Peter S.

AU - Salomatova, Victoria A.

AU - Parkhats, Marina V.

AU - Grivin, Vjacheslav P.

AU - Dzhagarov, Boris M.

AU - Bazhin, Nikolai M.

AU - Plyusnin, Victor F.

N1 - Publisher Copyright: © 2017, Springer-Verlag Berlin Heidelberg.

PY - 2018/7/1

Y1 - 2018/7/1

N2 - Fulvic acid (Henan ChangSheng Corporation) photoinduced degradation of non-UVA-absorbing herbicide amitrole (3-amino-1,2,4-triazole, AMT) as a way for its removal from polluted water was investigated in details. It was shown that the main primary species generated by fulvic acid under UVA radiation, triplet state and hydrated electron, are not directly involved in the herbicide degradation. AMT decays in reactions with secondary intermediates, reactive oxygen species, formed in reactions of the primary ones with dissolved oxygen. Singlet oxygen is responsible for 80% of herbicide oxidation, and •OH and O2−• radicals—for the remaining 20% of AMT. It was found that quantum yield of AMT photodegradation (ϕ365nm) decreases linearly from 2.2 × 10−3 to 1.2 × 10−3 with the increase of fulvic acid concentration from 1.1 to 30 mg L−1. On the contrary, the increase of AMT concentration from 0.8 to 25 mg L−1 leads to practically linear growth of ϕ365nm value from 1.8 × 10−4 to 4 × 10−3. Thus, the fulvic acid exhibits a good potential as UVA photooxidizer of organic pollutants sensitive to the singlet oxygen (ϕ532nm(1O2) = 0.025 at pH 6.5).

AB - Fulvic acid (Henan ChangSheng Corporation) photoinduced degradation of non-UVA-absorbing herbicide amitrole (3-amino-1,2,4-triazole, AMT) as a way for its removal from polluted water was investigated in details. It was shown that the main primary species generated by fulvic acid under UVA radiation, triplet state and hydrated electron, are not directly involved in the herbicide degradation. AMT decays in reactions with secondary intermediates, reactive oxygen species, formed in reactions of the primary ones with dissolved oxygen. Singlet oxygen is responsible for 80% of herbicide oxidation, and •OH and O2−• radicals—for the remaining 20% of AMT. It was found that quantum yield of AMT photodegradation (ϕ365nm) decreases linearly from 2.2 × 10−3 to 1.2 × 10−3 with the increase of fulvic acid concentration from 1.1 to 30 mg L−1. On the contrary, the increase of AMT concentration from 0.8 to 25 mg L−1 leads to practically linear growth of ϕ365nm value from 1.8 × 10−4 to 4 × 10−3. Thus, the fulvic acid exhibits a good potential as UVA photooxidizer of organic pollutants sensitive to the singlet oxygen (ϕ532nm(1O2) = 0.025 at pH 6.5).

KW - Amitrole

KW - Fulvic acids

KW - Herbicides

KW - Photooxidation

KW - Reactive oxygen species

KW - TRIPLET-STATES

KW - QUANTUM YIELDS

KW - HYDRATED ELECTRONS

KW - AQUEOUS-SOLUTION

KW - RATE CONSTANTS

KW - PHOTODEGRADATION

KW - SINGLET OXYGEN

KW - DISSOLVED ORGANIC-MATTER

KW - RADICALS

KW - PHOTOLYSIS

UR - http://www.scopus.com/inward/record.url?scp=85013626314&partnerID=8YFLogxK

U2 - 10.1007/s11356-017-8580-x

DO - 10.1007/s11356-017-8580-x

M3 - Article

C2 - 28233210

AN - SCOPUS:85013626314

VL - 25

SP - 20320

EP - 20327

JO - Environmental Science and Pollution Research

JF - Environmental Science and Pollution Research

SN - 0944-1344

IS - 21

ER -

ID: 9068222