The Photoelectrochemical and Photocatalytic Properties of Tantalum Oxide and Tantalum Nitride
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Authors
Khanal, Vijay
Irani, Rowshanak
Fiechter, Sebastian
Abdi, Fatwa F.
Subramanian, Vaidyanathan
Issue Date
2019
Type
Article
Language
en_US
Keywords
fabrication , thin-films , evolution , light , hydrogen , degradation , dioxide , composite nanostructures , methylene-blue , ta3n5
Alternative Title
Abstract
The surfactant-assisted synthesis of tantalum oxide nanoparticles (Ta2O5), its subsequent nitridation to form tantalum nitride (Ta3N5), and the evaluation of the photoactivity of these nanoparticles, are presented. The surface, optical, and compositional characterization of the in-house synthesized photocatalysts indicate spherical nanoparticles with phi = 30 nm Ta2O5 and phi = 30 nm Ta3N5 with the latter photocatalysts showing absorbance onset at similar to 630 nm. Photoelectrochemical analysis of the various photocatalyst films using chronoamperometry, linear sweep voltammetry, and impedance measurements attribute an improved photoactivity with the in-house catalysts to better charge generation, transport, and utilization. Initial results using Ta2O5 and Ta3N5 demonstrate photocatalytic activity toward conversion of colored pollutants. (C) The Author(s) 2019. Published by ECS.
Description
Citation
Khanal, V., Irani, R., Fiechter, S., Abdi, F. F., & Subramanian, V. (Ravi). (2019). Editors' Choice�"The Photoelectrochemical and Photocatalytic Properties of Tantalum Oxide and Tantalum Nitride. Journal of The Electrochemical Society, 166(5), H3294�"H3299. doi:10.1149/2.0391905jes
Publisher
Journal of The Electrochemical Society
License
Attribution 4.0 International
Journal
Volume
Issue
PubMed ID
ISSN
0013-4651