Black TiO2 for solar hydrogen conversion

Journal of Materiomics

Samuel S. Mao¹  Shaohua Shen²  Bin Wang³ 

[1] Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA, 94720, United States;International Research Centre for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Shaanxi, 710049, China;School of Science, MOE Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China;

关键词: Black TiO2;    Photoelectrochemical water splitting;    Photocatalytic;    Hydrogen evolution;   

DOI  :  10.1016/j.jmat.2017.02.001

来源: DOAJ

【 摘 要 】

Titanium dioxide (TiO2) has been widely investigated for photocatalytic H2 evolution and photoelectrochemical (PEC) water splitting since 1972. However, its wide bandgap (3.0–3.2 eV) limits the optical absorption of TiO2 for sufficient utilization of solar energy. Blackening TiO2 has been proposed as an effective strategy to enhance its solar absorption and thus the photocatalytic and PEC activities, and aroused widespread research interest. In this article, we reviewed the recent progress of black TiO2 for photocatalytic H2 evolution and PEC water splitting, along with detailed introduction to its unique structural features, optical property, charge carrier transfer property and related theoretical calculations. As summarized in this review article, black TiO2 could be a promising candidate for photoelectrocatalytic hydrogen generation via water splitting, and continuous efforts are deserved for improving its solar hydrogen efficiency.

【 授权许可】

Unknown