Highly-dispersed nickel nanoparticles decorated titanium dioxide nanotube array for enhanced solar light absorption

Chen, Jian; Zhou, Yingke; Li, Ruizhi; Wang, Xi; Chen, George Z.

Abstract

Honeycomb titanium dioxide nanotube array (TiO2-NTA) decorated by highly-dispersed nickel nanoparticles (Ni-NPs) has been grown under control on Ti foil by anodization and subsequent electrodeposition. The pore diameter and length of TiO2-NTA, and the size and quantity of Ni-NPs can be controlled via modulating the variables of the electrochemical processes. It has been found that the pretreatment of TiO2-NTA in the Cu(NO3)2 solution and further annealing at 450 °C in air could greatly improve the dispersion of the electrodeposited Ni-NPs. Absorption of the light in the solar spectrum from 300 to 2500 nm by the Ni-NPs@TiO2-NTA is as high as 96.83%, thanks to the co-effect of the light-trapping of TiO2-NTA and the plasmonic resonance of Ni-NPs. In the water heating experiment performed under an illuminating solar power density of ∼1 kW m−2 (AM 1.5), the ultimate temperature over 66 °C and an overall efficiency of 78.9% within 30 min were obtained, promising for applications in photothermal conversion and solar energy harvest.

Citation

Chen, J., Zhou, Y., Li, R., Wang, X., & Chen, G. Z. (2019). Highly-dispersed nickel nanoparticles decorated titanium dioxide nanotube array for enhanced solar light absorption. Applied Surface Science, 464, 716-724. https://doi.org/10.1016/j.apsusc.2018.09.091

• Journal Article Type: Article
• Acceptance Date: Sep 10, 2018
• Online Publication Date: Sep 11, 2018
• Publication Date: Jan 15, 2019
• Deposit Date: Oct 9, 2019
• Publicly Available Date: Oct 9, 2019
• Journal: Applied Surface Science
• Print ISSN: 0169-4332
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 464
• Pages: 716-724
• DOI: https://doi.org/10.1016/j.apsusc.2018.09.091
• Keywords: Titanium dioxide nanotube array; Nickel nanoparticles; Plasmonic resonance; Light absorption; Photothermal conversion
• Public URL: https://nottingham-repository.worktribe.com/output/2790245
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0169433218325066?via%3Dihub
• Additional Information: This article is maintained by: Elsevier; Article Title: Highly-dispersed nickel nanoparticles decorated titanium dioxide nanotube array for enhanced solar light absorption; Journal Title: Applied Surface Science; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.apsusc.2018.09.091; Content Type: article; Copyright: © 2018 Elsevier B.V. All rights reserved.
• Contract Date: Oct 9, 2019