Nanoporous FeVO4 Photoanodes Modified with Ultrathin C3N4 for High Photoelectrochemical Water Splitting Performance
- 113 Downloads
Great efforts have been paid to improve the photoelectrochemical performances of FeVO4 semiconductors. However, there have rarely been reported about the modifying of FeVO4 with metal-free co-catalyst for enhanced photoelectrochemical activities. Herein, we demonstrate a facile and effective immersion method for coupling ultrathin g-C3N4 nanosheets with nanoporous FeVO4 photoelectrodes. The FeVO4/g-C3N4 heterostructures demonstrate more than twice higher photocurrent density than pure nanoporous FeVO4 photoelectrodes, which should be attributed to the metal-free co-catalyst of ultrathin g-C3N4. It is believed that the ultrathin g-C3N4 nanosheets can effectively trap the photo excited holes and facilitates the charge separation efficiency and thus significantly improve the photoelectrochemical performances of FeVO4.
KeywordsHeterostructures Ultrathin FeVO4 g-C3N4 Photoelectrochemical
This work was supported by Key research and development Plan Project of Shandong Province (2015GGX104012; 2017GGX80104), A Project of Shandong Province Higher Educational Science and Technology Program (J17KB001) and Shandong Province National Natural Science Foundation (ZR2014EL010).
Compliance With Ethical Standards
Conflict of interest
The authors declare no competing financial interests.