Amine-Functionalized ZnO Nanosheets for Efficient CO2 Capture and Photoreduction

Amine-Functionalized ZnO Nanosheets for Efficient CO2 Capture and Photoreduction

Amine-functionalized ZnO nanosheets were prepared through a one-step hydrothermal method by using monoethanolamine, which has a hydroxyl group, for covalent attachment on ZnO and a primary amine group to supply the amine-functionalization. We demonstrate that the terminal amine groups on ZnO surface...

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Bibliographic Details
Main Authors: Liao, Yusen, Hu, Zhaoning, Gu, Quan, Xue, Can
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2015
Subjects:
CO2 reduction
Photocatalysis
Solar fuels
Zinc oxide
Online Access:https://hdl.handle.net/10356/81046
http://hdl.handle.net/10220/39111
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Institution: Nanyang Technological University
Language: English
Description
Summary:Amine-functionalized ZnO nanosheets were prepared through a one-step hydrothermal method by using monoethanolamine, which has a hydroxyl group, for covalent attachment on ZnO and a primary amine group to supply the amine-functionalization. We demonstrate that the terminal amine groups on ZnO surfaces substantially increase the capability of CO2 capture via chemisorption, resulting in effective CO2 activation. As a result, the photogenerated electrons from excited ZnO can more readily reduce the surface-activated CO2, which thereby enhances the activity for photocatalytic CO2 reduction.

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