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International Journal of Photoenergy
Volume 2017 (2017), Article ID 8529851, 16 pages
Review Article

Black Titanium Dioxide Nanomaterials in Photocatalysis

Department of Chemistry, University of Missouri-Kansas City, Kansas City, MO 64110, USA

Correspondence should be addressed to Yong Li

Received 30 June 2017; Accepted 11 September 2017; Published 2 November 2017

Academic Editor: P. Davide Cozzoli

Copyright © 2017 Xiaodong Yan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Titanium dioxide (TiO2) nanomaterials are widely considered to be state-of-the-art photocatalysts for environmental protection and energy conversion. However, the low photocatalytic efficiency caused by large bandgap and rapid recombination of photo-excited electrons and holes is a challenging issue that needs to be settled for their practical applications. Structure engineering has been demonstrated to be a highly promising approach to engineer the optical and electronic properties of the existing materials or even endow them with unexpected properties. Surface structure engineering has witnessed the breakthrough in increasing the photocatalytic efficiency of TiO2 nanomaterials by creating a defect-rich or amorphous surface layer with black color and extension of optical absorption to the whole visible spectrum, along with markedly enhanced photocatalytic activities. In this review, the recent progress in the development of black TiO2 nanomaterials is reviewed to gain a better understanding of the structure-property relationship with the consideration of preparation methods and to project new insights into the future development of black TiO2 nanomaterials in photocatalytic applications.