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An artificial photosynthesis system based on CeO2 as light harvester and N-doped graphene Cu(II) complex as artificial metalloenzyme for CO2 reduction to methanol fuel

Paper ID Volume ID Publish Year Pages File Format Full-Text
49391 46741 2016 5 PDF Available
Title
An artificial photosynthesis system based on CeO2 as light harvester and N-doped graphene Cu(II) complex as artificial metalloenzyme for CO2 reduction to methanol fuel
Abstract

•An artificial photosynthesis system is fabricated.•The system consists of CeO2 semiconductor and N-doped graphene Cu(II) complex metalloenzyme.•Cu(II) complex artificial metalloenzyme is a key component in reducing CO2 to methanol fuel.•A semiconductor coupled with metalloenzyme is regarded as an artificial photosynthesis model.

An artificial photosynthesis catalyst composed of CeO2, N-doped graphene and copper ions (CeO2–NG–Cu2 +) was fabricated. The light-harvesting CeO2–NG was characterized by X-ray diffraction, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. The photocatalytic reduction of CO2 was conducted in an aqueous solution of Na2SO3. Results indicated that the reduction rate of CO2 to methanol approached 507.3 μmol · g−1 cat. · h− 1 for CeO2–NG–Cu2 + artificial photosynthesis system in 80 min, whereas the reduction rate was only 5.8 μmol · g−1 cat. · h− 1 for bare CeO2–NG without metalloenzyme. Therefore, artificial metalloenzyme played a vital role in reducing CO2 to methanol fuel.

Graphical abstractAn artificial photosynthesis system reduces CO2 to methanol.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
N-doped graphene; CeO2; Artificial photosynthesis; Metalloenzyme; CO2; Methanol
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An artificial photosynthesis system based on CeO2 as light harvester and N-doped graphene Cu(II) complex as artificial metalloenzyme for CO2 reduction to methanol fuel
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 73, 5 January 2016, Pages 7–11
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us