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Recent Advances in Niobium-Based Materials for Photocatalytic Solar Fuel Production

1
Institute of Technical Chemistry, Leibniz University Hannover, 30167 Hannover, Germany
2
Laboratory of Photochemistry and Materials Science, Institute of Chemistry, Federal University of Uberlandia, Uberlandia 38400-902, Brazil
3
Laboratory ‘Photoactive Nanocomposite Materials’, Saint-Petersburg State University, Saint-Petersburg 199034, Russia
*
Authors to whom correspondence should be addressed.
Catalysts 2020, 10(1), 126; https://doi.org/10.3390/catal10010126
Received: 15 December 2019 / Revised: 6 January 2020 / Accepted: 11 January 2020 / Published: 16 January 2020
(This article belongs to the Special Issue Photocatalytic Nanocomposite Materials)
The search for renewable and clean energy sources is a key aspect for sustainable development as energy consumption has continuously increased over the years concomitantly with environmental concerns caused by the use of fossil fuels. Semiconductor materials have great potential for acting as photocatalysts for solar fuel production, a potential energy source able to solve both energy and environmental concerns. Among the studied semiconductor materials, those based on niobium pentacation are still shallowly explored, although the number of publications and patents on Nb(V)-based photocatalysts has increased in the last years. A large variety of Nb(V)-based materials exhibit suitable electronic/morphological properties for light-driving reactions. Not only the extensive group of Nb2O5 polymorphs is explored, but also many types of layered niobates, mixed oxides, and Nb(V)-doped semiconductors. Therefore, the aim of this manuscript is to provide a review of the latest developments of niobium based photocatalysts for energy conversion into fuels, more specifically, CO2 reduction to hydrocarbons or H2 evolution from water. Additionally, the main strategies for improving the photocatalytic performance of niobium-based materials are discussed. View Full-Text
Keywords: niobium; water splitting; artificial photosynthesis; Nb2O5; niobates niobium; water splitting; artificial photosynthesis; Nb2O5; niobates
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Nunes, B.N.; Lopes, O.F.; Patrocinio, A.O.T.; Bahnemann, D.W. Recent Advances in Niobium-Based Materials for Photocatalytic Solar Fuel Production. Catalysts 2020, 10, 126.

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