Rapid microwave-assisted hydrothermal synthesis of CuBi2O4 and its application for the artificial photosynthesis

Rapid microwave-assisted hydrothermal synthesis of CuBi2O4 and its application for the artificial photosynthesis

[Display omitted] •A new synthesis strategy for obtaining CuBi2O4.•Selective CO2 reduction for CH4 using heterogeneous photocatalysis.•CO2 photoreduction to obtain hydrocarbons of great industrial importance.•Solar energy is stored in the form of chemical bonds (C–H) in liquid or gaseous fuels. Stra...

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Bibliographic Details
Published in:Materials letters Vol. 275; p. 128165
Main Authors: Ribeiro, Lucas S., Pinatti, Ivo M., Torres, Juliana A., Giroto, Amanda S., Lesse, Fabiana, Longo, Elson, Ribeiro, Caue, Nogueira, André E.
Format: Journal Article
Language:English
Published: Amsterdam Elsevier B.V 15-09-2020
Elsevier BV
Subjects:
Carbon dioxide
Catalytic converters
CO2 photoreduction
Conversion
Copper bismuthate
Environmental impact
Low temperature
Materials science
Microwave-assisted hydrothermal synthesis
Morphology
Photocatalysis
Photosynthesis
Reforming
Selectivity
Semiconductors
Microwave-assisted hydrothermal synthesis
CO2 photoreduction
Photocatalysis
Morphology
Copper bismuthate
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Summary:[Display omitted] •A new synthesis strategy for obtaining CuBi2O4.•Selective CO2 reduction for CH4 using heterogeneous photocatalysis.•CO2 photoreduction to obtain hydrocarbons of great industrial importance.•Solar energy is stored in the form of chemical bonds (C–H) in liquid or gaseous fuels. Strategies for CO2 reforming for hydrocarbon production using ultraviolet or visible radiation are promising to mitigate environmental impacts from other human activities. Semiconductors act as photocatalysts for light-to-fuel conversion, but a rigorous control of their structure and morphology is crucial for high efficiency and selectivity. Thus, CuBi2O4 semiconductors have been synthesized by the microwave-assisted hydrothermal method and studied for the CO2 photoreduction process. This method produced crystalline materials with controlled morphology using low temperatures and short processing time. Moreover, the semiconductors showed excellent catalytic performance and selectivity, approximately 90% in the conversion of CO2 to CH4. Therefore, our new synthesis approach was adequate for CuBi2O4 preparation, providing an essential indication of activity in the CO2 photoreduction process.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2020.128165