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Tytuł:
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Efficient self-photo-degradation of cationic textile dyes involved triethylamine and degradation pathway.
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Autorzy:
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Li CB; The Energy and Catalysis Hub, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, PR China. Electronic address: .
Xiao F; The Energy and Catalysis Hub, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, PR China.
Xu W; The Energy and Catalysis Hub, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, PR China. Electronic address: .
Chu Y; The Energy and Catalysis Hub, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, PR China.
Wang Q; The Energy and Catalysis Hub, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, PR China.
Jiang H; The Energy and Catalysis Hub, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, PR China.
Li K; The Energy and Catalysis Hub, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, PR China.
Gao XW; Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China.
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Źródło:
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Chemosphere [Chemosphere] 2021 Mar; Vol. 266, pp. 129209. Date of Electronic Publication: 2020 Dec 05.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: Oxford : Elsevier Science Ltd
Original Publication: Oxford, New York, : Pergamon Press.
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MeSH Terms:
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Tandem Mass Spectrometry*
Textile Industry*
Catalysis ; Chromatography, Liquid ; Coloring Agents ; Ethylamines ; Textiles
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Contributed Indexing:
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Keywords: Degradation pathway; Self-photo-degradation; Textile dyes; Triethylamine
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Substance Nomenclature:
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0 (Coloring Agents)
0 (Ethylamines)
VOU728O6AY (triethylamine)
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Entry Date(s):
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Date Created: 20201214 Date Completed: 20210113 Latest Revision: 20210113
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Update Code:
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20240104
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DOI:
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10.1016/j.chemosphere.2020.129209
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PMID:
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33316468
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Cationic textile dyes such as astrazon brilliant red (ABR), are frequently used in the textile industry and contaminait the water ecology. Photodegradation of such dyes in wastewater is considered as a promising method, while the existing approaches are usually involved complicated and costly materials as photocatalysts. Facial, effective and low-cost approaches for their decontamination are needed. What's more, the detailed decomposition path of ABR is not revealed. The present study shows that ABR could suffer effective self-photo-degradation under triethylamine treatment without a photocatalyst. Almost 100% of the dye degraded within 1 h under visible light irradiation. UV-vis, FTIR and UPLC-MS analysis conformed the degradation of ABR. Factors involved in the degradation system were investigated clearly. What's more, the accurate and detailed analysis of UV-vis, FTIR and UPLC-MS data combined with computational analysis revealed the decomposition process of ABR. Reactive oxygen species (ROS) was investigated from ROS trapping experiments and EPR measurements, which revealed that O 2 - was the critical ROS in the degradation process, while 1 O 2 and OH had slightly influence on the degradation progression.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
