Flower-like ZnO/ionic liquid composites: structure, morphology, and photocatalytic activity

Two ionic liquids (ILs) with different alkyl chains, 1-butyl-3-methylimidazolium chloride (BMI.Cl) and 1-hexadecyl-3-methylimidazolium chloride (C16MI.Cl), were incorporated into ZnO particles using the microwave-assisted hydrothermal (MAH) method. The morphology and microstructure of ZnO and ZnO/IL...

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Bibliographic Details
Published in:Ionics 2019-07, Vol.25 (7), p.3197-3210
Main Authors: da Trindade, Letícia G., Zanchet, Letícia, Trench, Aline B., Souza, Josiane Carneiro, Carvalho, Maria H., de Oliveira, Adilson J. A., Pereira, Ernesto C., Mazzo, Tatiana M., Longo, Elson
Format: Article
Language:English
Subjects:
Catalytic activity
Chemistry
Chemistry and Materials Science
Composite materials
Condensed Matter Physics
Defects
Dyes
Electrochemistry
Energy Storage
Ionic liquids
Ions
Morphology
Optical and Electronic Materials
Original Paper
Photocatalysis
Photodegradation
Renewable and Green Energy
Rhodamine
Zinc oxide
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Summary:Two ionic liquids (ILs) with different alkyl chains, 1-butyl-3-methylimidazolium chloride (BMI.Cl) and 1-hexadecyl-3-methylimidazolium chloride (C16MI.Cl), were incorporated into ZnO particles using the microwave-assisted hydrothermal (MAH) method. The morphology and microstructure of ZnO and ZnO/IL composites were characterized along with their photocatalytic effect for dye degradation. While the incorporation of ILs into the ZnO particles did not alter their morphology, it converted the shallow defects into deep defects. These changes improved Rhodamine B (RhB) photodegradation efficiency. The dye degradation reached 62% when ZnO/C1640 was used, whereas it reached 30% when pure ZnO was used, during the same time interval. Graphical abstract
ISSN:0947-7047
1862-0760
DOI:10.1007/s11581-018-2822-x