Affiliation:
1. State Key Laboratory of High-Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences Shanghai 200050 China
2. Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
Abstract
Oxygen‐deficient TiO2 with unique electrical and optical properties has attracted enormous attention in the field of solar energy due to its excellent photocatalytic performance. Nevertheless, there are few works associating oxygen‐deficient TiO2 with solar heat production. Herein, oxygen‐deficient TiO2 is obtained by vacuum heat treatment technology. The solar absorption becomes increasingly stronger with the heat treatment temperature. 1200 °C is an appropriate treatment temperature for oxygen‐deficient TiO2 according to X‐ray diffraction analysis and ultraviolet, visible, near‐infrared, at which the light absorption of oxygen‐deficient TiO2 can be five times as original TiO2, viz. 81.4%. Moreover, the solar thermal conversion efficiency for the oxygen‐deficient TiO2 nanofluids is 75.2%. A simple and general method for preparing oxygen‐deficient TiO2 for solar heat production is developed.
Funder
Natural Science Foundation of Shanghai
Youth Innovation Promotion Association
Cited by
3 articles.
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