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Molecules 2015, 20(10), 18847-18855; doi:10.3390/molecules201018847

Amine-Functionalized ZnO Nanosheets for Efficient CO2 Capture and Photoreduction

School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore, Singapore
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Author to whom correspondence should be addressed.
Academic Editors: Jimmy C. Yu and Wing-Kei Ho
Received: 20 August 2015 / Revised: 7 October 2015 / Accepted: 14 October 2015 / Published: 16 October 2015
View Full-Text   |   Download PDF [1773 KB, uploaded 16 October 2015]   |  

Abstract

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. View Full-Text
Keywords: photocatalysis; CO2 reduction; solar fuels; zinc oxide photocatalysis; CO2 reduction; solar fuels; zinc oxide
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Liao, Y.; Hu, Z.; Gu, Q.; Xue, C. Amine-Functionalized ZnO Nanosheets for Efficient CO2 Capture and Photoreduction. Molecules 2015, 20, 18847-18855.

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