Effect of Ag Loading Location on the Photocatalytic Performance of a TiO2 Nanocolumn Array

Submitting author affiliation:
Beijing University of Technology, Beijing, China

Beilstein Arch. 2019, 2019110. https://doi.org/10.3762/bxiv.2019.110.v1

Published 26 Sep 2019

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The evaluation of the photocatalytic performance of Ag-loaded TiO2 nanocolumn (Ag-TNC) arrays prepared by atomic layer deposition (ALD) and vacuum evaporation is described. The effects of Ag loading position and deposition thickness on the morphology, structure, composition, and optical and photocatalytic properties of the Ag-TNC arrays were studied by controlling the preparation process and vacuum evaporation time. The Ag-filled samples were found to maintain high catalytic efficiency, whereas that of the Ag-coated samples decreased with the increase of Ag deposition thickness. The reasons for the influence of the loading position on the catalytic efficiency are discussed, and the conclusions were verified by simulation.

Keywords: Ag, TiO2, nanoarray, heterojunction, photocatalytic

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Xu, J.; Zhao, Y.; Liu, Y. Beilstein Arch. 2019, 2019110. doi:10.3762/bxiv.2019.110.v1

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