Journal Home > Volume 13 , issue 4

To construct the heterojunctions of TiO2 with other compounds is of great importance for overcoming its inherent shortages and improving the visible-light photocatalytic performance. Here we propose the construction of TiO2/covalent organic framework (COF) heterojunction with tight connection by a supercritical CO2 (SC CO2) method, which helps bridging the transformation paths for photo-induced charge between TiO2 and COF. The produced TiO2/COF heterojunction performs a H2 evolution of 3,962 μmol·g-1·h-1 under visible-light irradiation, which is ~ 25 times higher than that of pure TiO2 and 4.5 folds higher than that of TiO2/COF synthesized by the conventional solvothermal method. This study opens up new possibilities for constructing heterojunctions for solar energy utilization.

File
12274_2020_2728_MOESM1_ESM.pdf (1.7 MB)
Publication history
Copyright
Acknowledgements
Rights and permissions

Publication history

Received: 18 December 2019
Revised: 09 February 2020
Accepted: 21 February 2020
Published: 14 March 2020
Issue date: April 2020

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020

Acknowledgements

The authors thank the financial supports from Ministry of Science and Technology of China (No. 2017YFA0403003), the National Natural Science Foundation of China (Nos. 21525316 and 21673254), Chinese Academy of Sciences (No. QYZDY-SSW-SLH013), and Beijing Municipal Science & Technology Commission (No. Z191100007219009).

Rights and permissions

Reprints and Permission requests may be sought directly from editorial office.
Email: nanores@tup.tsinghua.edu.cn

Return