Research on photosensitivity of benzoquinones and benzoquinoneimines in the sunlight/Fe2+/S2O8        2− system

Anjing Wang; Junmei He; Lingna Kong; Naidong Zhang; Tong Zheng

doi:10.1007/s11164-016-2753-y

Research on photosensitivity of benzoquinones and benzoquinoneimines in the sunlight/Fe²⁺/S₂O₈ ²⁻ system

Anjing Wang
, Junmei He
, Lingna Kong
, Naidong Zhang^*
, Tong Zheng

^*Corresponding author for this work

School of Environment

Dalian Maritime University
Harbin Institute of Technology

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

5 Scopus citations

Abstract

This paper investigated the photodegradation characteristics of benzoquinones and benzoquinoneimines. The photosensitivity of benzoquinones and benzoquinoneimines were analyzed by measuring the yield of SO₄ ^−· in a light/Fe²⁺/S₂O₈ ²⁻ system and the degradation mechanism of benzoquinones, then discussed benzoquinoneimines in light/Fe²⁺/S₂O₈ ²⁻ and light/S₂O₈ ²⁻ system. The results revealed that a more aggressive oxidation of benzoquinones and benzoquinoneimines by the sunlight/Fe²⁺/S₂O₈ ²⁻ method showed a more rapid and more complete removal of chromaticity than that of the UV/Fe²⁺/S₂O₈ ²⁻ method. It was showed that they were photosensitizers, and they could generate ¹O₂ and O₂ ^−· which could promote the formation of SO₄ ^−· and ^·OH in the sunlight system. Nevertheless, for benzoquinones, the sunlight/S₂O₈ ²⁻ method was superior to the UV/S₂O₈ ²⁻ method. For benzoquinoneimines, the sunlight/S₂O₈ ²⁻ method was inferior to the UV/S₂O₈ ²⁻ method. In addition, the yield of SO₄ ^−· in the sunlight/Fe²⁺/S₂O₈ ²⁻ system was more than that of the UV/Fe²⁺/S₂O₈ ²⁻ system. Therefore, the photosensitivity of benzoquinones is superior to benzoquinoneimines in water treatment.

Original language	English
Pages (from-to)	2175-2186
Number of pages	12
Journal	Research on Chemical Intermediates
Volume	43
Issue number	4
DOIs	https://doi.org/10.1007/s11164-016-2753-y
State	Published - 1 Apr 2017

Keywords

Benzoquinoneimines
Benzoquinones
Photosensitivity
Singlet oxygen
Sunlight
Superoxide anion radical

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10.1007/s11164-016-2753-y

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title = "Research on photosensitivity of benzoquinones and benzoquinoneimines in the sunlight/Fe2+/S2O8 2− system",

abstract = "This paper investigated the photodegradation characteristics of benzoquinones and benzoquinoneimines. The photosensitivity of benzoquinones and benzoquinoneimines were analyzed by measuring the yield of SO4 −· in a light/Fe2+/S2O8 2− system and the degradation mechanism of benzoquinones, then discussed benzoquinoneimines in light/Fe2+/S2O8 2− and light/S2O8 2− system. The results revealed that a more aggressive oxidation of benzoquinones and benzoquinoneimines by the sunlight/Fe2+/S2O8 2− method showed a more rapid and more complete removal of chromaticity than that of the UV/Fe2+/S2O8 2− method. It was showed that they were photosensitizers, and they could generate 1O2 and O2 −· which could promote the formation of SO4 −· and ·OH in the sunlight system. Nevertheless, for benzoquinones, the sunlight/S2O8 2− method was superior to the UV/S2O8 2− method. For benzoquinoneimines, the sunlight/S2O8 2− method was inferior to the UV/S2O8 2− method. In addition, the yield of SO4 −· in the sunlight/Fe2+/S2O8 2− system was more than that of the UV/Fe2+/S2O8 2− system. Therefore, the photosensitivity of benzoquinones is superior to benzoquinoneimines in water treatment.",

keywords = "Benzoquinoneimines, Benzoquinones, Photosensitivity, Singlet oxygen, Sunlight, Superoxide anion radical",

author = "Anjing Wang and Junmei He and Lingna Kong and Naidong Zhang and Tong Zheng",

note = "Publisher Copyright: {\textcopyright} 2016, Springer Science+Business Media Dordrecht.",

year = "2017",

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doi = "10.1007/s11164-016-2753-y",

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T1 - Research on photosensitivity of benzoquinones and benzoquinoneimines in the sunlight/Fe2+/S2O8 2− system

AU - Wang, Anjing

AU - He, Junmei

AU - Kong, Lingna

AU - Zhang, Naidong

AU - Zheng, Tong

PY - 2017/4/1

Y1 - 2017/4/1

N2 - This paper investigated the photodegradation characteristics of benzoquinones and benzoquinoneimines. The photosensitivity of benzoquinones and benzoquinoneimines were analyzed by measuring the yield of SO4 −· in a light/Fe2+/S2O8 2− system and the degradation mechanism of benzoquinones, then discussed benzoquinoneimines in light/Fe2+/S2O8 2− and light/S2O8 2− system. The results revealed that a more aggressive oxidation of benzoquinones and benzoquinoneimines by the sunlight/Fe2+/S2O8 2− method showed a more rapid and more complete removal of chromaticity than that of the UV/Fe2+/S2O8 2− method. It was showed that they were photosensitizers, and they could generate 1O2 and O2 −· which could promote the formation of SO4 −· and ·OH in the sunlight system. Nevertheless, for benzoquinones, the sunlight/S2O8 2− method was superior to the UV/S2O8 2− method. For benzoquinoneimines, the sunlight/S2O8 2− method was inferior to the UV/S2O8 2− method. In addition, the yield of SO4 −· in the sunlight/Fe2+/S2O8 2− system was more than that of the UV/Fe2+/S2O8 2− system. Therefore, the photosensitivity of benzoquinones is superior to benzoquinoneimines in water treatment.

AB - This paper investigated the photodegradation characteristics of benzoquinones and benzoquinoneimines. The photosensitivity of benzoquinones and benzoquinoneimines were analyzed by measuring the yield of SO4 −· in a light/Fe2+/S2O8 2− system and the degradation mechanism of benzoquinones, then discussed benzoquinoneimines in light/Fe2+/S2O8 2− and light/S2O8 2− system. The results revealed that a more aggressive oxidation of benzoquinones and benzoquinoneimines by the sunlight/Fe2+/S2O8 2− method showed a more rapid and more complete removal of chromaticity than that of the UV/Fe2+/S2O8 2− method. It was showed that they were photosensitizers, and they could generate 1O2 and O2 −· which could promote the formation of SO4 −· and ·OH in the sunlight system. Nevertheless, for benzoquinones, the sunlight/S2O8 2− method was superior to the UV/S2O8 2− method. For benzoquinoneimines, the sunlight/S2O8 2− method was inferior to the UV/S2O8 2− method. In addition, the yield of SO4 −· in the sunlight/Fe2+/S2O8 2− system was more than that of the UV/Fe2+/S2O8 2− system. Therefore, the photosensitivity of benzoquinones is superior to benzoquinoneimines in water treatment.

KW - Benzoquinoneimines

KW - Benzoquinones

KW - Photosensitivity

KW - Singlet oxygen

KW - Sunlight

KW - Superoxide anion radical

UR - https://www.scopus.com/pages/publications/84991082240

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DO - 10.1007/s11164-016-2753-y

M3 - 文章

AN - SCOPUS:84991082240

SN - 0922-6168

VL - 43

SP - 2175

EP - 2186

JO - Research on Chemical Intermediates

JF - Research on Chemical Intermediates

IS - 4

ER -

Research on photosensitivity of benzoquinones and benzoquinoneimines in the sunlight/Fe²⁺/S₂O₈ ²⁻ system

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Keywords

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