Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 42, Issue 12, Pages 8418-8449Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2016.12.052
Keywords
Hydrogen production; TiO2 nanostructure; Catalyst; Photocatalysis; Photoelectrocatalysis
Categories
Funding
- National Natural Science Foundation of China [21501127, 51502185]
- Natural Science Foundation of Jiangsu Province of China [BK20140400]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [15KJB430025]
- project of the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- China Scholarship Council
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Hydrogen is an attractive alternative to fossil fuels that addresses several environmental and energy shortage issues. Nano-sized TiO2-based photocatalysts with unique structural and functional properties are the most extensively studied photocatalytic nanomaterials for hydrogen production and pollutant degradation. However, titania is hampered by a wide band gap, low utilization of solar light and a rapid recombination of electron/hole pairs. These issues limit its photocatalytic performance. In this review, we present the latest developments in the fabrication of different higher dimensional TiO2 nanostructured materials that aim to address these inherent limitations to an otherwise very promising material. Specifically, we will look into critical engineering strategies to enlarge the active surface area, enhance visible light absorption and suppress the recombination of electrons/ holes that benefit their photo/photoelectric-catalytic water splitting activity. Finally, the current challenges and perspectives for TiO2 nanostructures are also discussed. Continuous efforts are necessary to endow TiO2-based materials with novel advanced functionality and commercialization potential in the coming years. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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