fig5
![TiO<sub>2</sub>-based heterojunctions for photocatalytic hydrogen evolution reaction](https://image.oaes.cc/9c5f6b5d-3aaa-4886-b915-cb6a2b858edd/microstructures4006.fig.5.jpg)
Figure 5. (A and B) Schematic diagram of UiO-66-NH2 heterojunctions. (A and B) is quoted with permission from Kuang et al.[27]. (C) Energy band position of Pristine TiO2, S, N-doped TiO2, In2S3 NPs on TiO2, and In2S3, (D) S, N-doped TiO2/In2S3 heterostructure and photocatalytic mechanism diagrams. (C and D) is quoted with permission from Park et al.[35].