Defect-Rich Ultrathin ZnAl-Layered Double Hydroxide Nanosheets for Efficient Photoreduction of CO2 to CO with Water

Yufei Zhao; Guangbo Chen; Tong Bian; Chao Zhou; Geoffrey I N Waterhouse; Li-Zhu Wu; Chen-Ho Tung; Lorna J Smith; Dermot O'Hare; Tierui Zhang

doi:10.1002/adma.201503730

Defect-Rich Ultrathin ZnAl-Layered Double Hydroxide Nanosheets for Efficient Photoreduction of CO2 to CO with Water

Adv Mater. 2015 Dec 16;27(47):7824-31. doi: 10.1002/adma.201503730. Epub 2015 Oct 28.

Authors

Yufei Zhao¹, Guangbo Chen^{1

2}, Tong Bian¹, Chao Zhou¹, Geoffrey I N Waterhouse³, Li-Zhu Wu¹, Chen-Ho Tung¹, Lorna J Smith⁴, Dermot O'Hare⁴, Tierui Zhang¹

Affiliations

¹ Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
² Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China.
³ School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand.
⁴ Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.

PMID: 26509528
DOI: 10.1002/adma.201503730

Abstract

Defect-rich ultrathin ZnAl-layered double hydroxide nanosheets are successfully prepared. Under UV-vis irradiation, these nanosheets are superior efficient catalysts for the photoreduction of CO2 to CO with water. The formed oxygen vacancies lead to the formation of coordinatively unsaturated Zn(+) centers within the nanosheets, responsible for the very high photocatalytic activities.

Keywords: CO2 photoreduction; layered double hydroxides; surface defects; ultrathin nanosheets.