Enhanced Degradation of Organic Pollutants with Microwave-induced Plasma-in-liquid (MPL): Case of Flame Retardant Tetrabromobisphenol-A in Alkaline Aqueous Media
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- Horikoshi Satoshi
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University
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- Sawada Seiya
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University
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- Tsuchida Akihiro
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University
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- Serpone Nick
- PhotoGreen Laboratory, Dipartimento di Chimica, Università di Pavia
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<p>We report the enhanced degradation of a widely used brominated flame retardant, tetrabromobisphenol-A (TBBPA), which is soluble only in organic solvents and strongly alkaline solutions, where most advanced oxidation processes (AOPs) for such substrates tend to be rather inefficient. We further report an environmentally friendly method (microwave-induced plasma-in-liquid; MPL) that operates efficiently in alkaline aqueous media without the need for organic solvents to enhance the solubility of TBBPA in water. The enhanced debromination and almost complete mineralization of TBBPA under alkaline conditions occurs within 20 min of MPL irradiation. This method, which is a new member of the AOP family, provides a simple and green approach to detoxify aqueous media contaminated with TBBPA, which requires only electric power and neither catalysts nor oxidizing agents. Several intermediate species have been identified by liquid chromatography/mass spectrometry (LC-MS), following events that involved reactive oxygen species (ROSs) such as·OH, whose first task was to approach the substrate at carbon atoms bearing the highest electron densities.</p>
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 69 (3), 261-269, 2020
公益社団法人 日本油化学会
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詳細情報 詳細情報について
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- CRID
- 1390002184878797952
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- NII論文ID
- 130007804107
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- NII書誌ID
- AA11503337
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 030275138
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- PubMed
- 32051360
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可