Degradation of Polybrominated Aiphenyl Ethers in a UV Advanced Reduction Process with Different Reducing Agents

Xiaoqing Dong; Chaolin Li; Wei Zheng; Guosheng Wang

doi:10.1088/1755-1315/113/1/012035

Degradation of Polybrominated Aiphenyl Ethers in a UV Advanced Reduction Process with Different Reducing Agents

Xiaoqing Dong
, Chaolin Li
, Wei Zheng
, Guosheng Wang

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

Polybrominated diphenyl ethers (PBDEs) are toxic and persistent, and their efficient degradation is currently a challenge. In this study, decabromodiphenyl ether (BDE-209) was selected as the target compound and was degraded by a UV photochemical system with different reducing agent. The result showed that the optimal BDE-209 removal in 1 hour by UV/sodium sulphite (Na₂SO₃) was 86.87%. With the same concentration of BDE-209 and reaction time, the optimal removal rate by UV/sodium borohydride (NaBH₄) was 89.25%. Kinetic analysis revealed that the degradation of BDE-209 conformed to the first-order kinetic model. The order of rate constant of different UV photochemical processes is k_UV<k_UV/Na2SO3<k_UV/NaBH4. Debromination rate indicated that reducing agents can promote the removal of bromine during the degradation of BDE-209. As a reducing agent, sodium borohydride showed a better enhanced effect for the removal of bromines.

Original language	English
Article number	012035
Journal	IOP Conference Series: Earth and Environmental Science
Volume	113
Issue number	1
DOIs	https://doi.org/10.1088/1755-1315/113/1/012035
State	Published - 22 Feb 2018
Externally published	Yes
Event	2017 3rd International Conference on Advances in Energy Resources and Environment Engineering, ICAESEE 2017 - Harbin, China Duration: 8 Dec 2017 → 10 Dec 2017

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10.1088/1755-1315/113/1/012035

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title = "Degradation of Polybrominated Aiphenyl Ethers in a UV Advanced Reduction Process with Different Reducing Agents",

abstract = "Polybrominated diphenyl ethers (PBDEs) are toxic and persistent, and their efficient degradation is currently a challenge. In this study, decabromodiphenyl ether (BDE-209) was selected as the target compound and was degraded by a UV photochemical system with different reducing agent. The result showed that the optimal BDE-209 removal in 1 hour by UV/sodium sulphite (Na2SO3) was 86.87\%. With the same concentration of BDE-209 and reaction time, the optimal removal rate by UV/sodium borohydride (NaBH4) was 89.25\%. Kinetic analysis revealed that the degradation of BDE-209 conformed to the first-order kinetic model. The order of rate constant of different UV photochemical processes is kUVUV/Na2SO3UV/NaBH4. Debromination rate indicated that reducing agents can promote the removal of bromine during the degradation of BDE-209. As a reducing agent, sodium borohydride showed a better enhanced effect for the removal of bromines.",

author = "Xiaoqing Dong and Chaolin Li and Wei Zheng and Guosheng Wang",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 2017 3rd International Conference on Advances in Energy Resources and Environment Engineering, ICAESEE 2017 ; Conference date: 08-12-2017 Through 10-12-2017",

year = "2018",

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doi = "10.1088/1755-1315/113/1/012035",

language = "英语",

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T1 - Degradation of Polybrominated Aiphenyl Ethers in a UV Advanced Reduction Process with Different Reducing Agents

AU - Dong, Xiaoqing

AU - Li, Chaolin

AU - Zheng, Wei

AU - Wang, Guosheng

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2018/2/22

Y1 - 2018/2/22

N2 - Polybrominated diphenyl ethers (PBDEs) are toxic and persistent, and their efficient degradation is currently a challenge. In this study, decabromodiphenyl ether (BDE-209) was selected as the target compound and was degraded by a UV photochemical system with different reducing agent. The result showed that the optimal BDE-209 removal in 1 hour by UV/sodium sulphite (Na2SO3) was 86.87%. With the same concentration of BDE-209 and reaction time, the optimal removal rate by UV/sodium borohydride (NaBH4) was 89.25%. Kinetic analysis revealed that the degradation of BDE-209 conformed to the first-order kinetic model. The order of rate constant of different UV photochemical processes is kUVUV/Na2SO3UV/NaBH4. Debromination rate indicated that reducing agents can promote the removal of bromine during the degradation of BDE-209. As a reducing agent, sodium borohydride showed a better enhanced effect for the removal of bromines.

AB - Polybrominated diphenyl ethers (PBDEs) are toxic and persistent, and their efficient degradation is currently a challenge. In this study, decabromodiphenyl ether (BDE-209) was selected as the target compound and was degraded by a UV photochemical system with different reducing agent. The result showed that the optimal BDE-209 removal in 1 hour by UV/sodium sulphite (Na2SO3) was 86.87%. With the same concentration of BDE-209 and reaction time, the optimal removal rate by UV/sodium borohydride (NaBH4) was 89.25%. Kinetic analysis revealed that the degradation of BDE-209 conformed to the first-order kinetic model. The order of rate constant of different UV photochemical processes is kUVUV/Na2SO3UV/NaBH4. Debromination rate indicated that reducing agents can promote the removal of bromine during the degradation of BDE-209. As a reducing agent, sodium borohydride showed a better enhanced effect for the removal of bromines.

UR - https://www.scopus.com/pages/publications/85043311441

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DO - 10.1088/1755-1315/113/1/012035

M3 - 会议文章

AN - SCOPUS:85043311441

SN - 1755-1307

VL - 113

JO - IOP Conference Series: Earth and Environmental Science

JF - IOP Conference Series: Earth and Environmental Science

IS - 1

M1 - 012035

T2 - 2017 3rd International Conference on Advances in Energy Resources and Environment Engineering, ICAESEE 2017

Y2 - 8 December 2017 through 10 December 2017

ER -

Degradation of Polybrominated Aiphenyl Ethers in a UV Advanced Reduction Process with Different Reducing Agents

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