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Constructing $Co_{3}O_{4}/g-C_{3}N_{4}$ Ultra-Thin Nanosheets with Z-Scheme Charge Transfer Pathway for Efficient Photocatalytic Water Splitting
| Content Provider | MDPI |
|---|---|
| Author | Guo, Yuan Liu, Wanqing Duan, Wei Wang, Siyu Jia, Liqun Zhang, Guoqing Zhu, Baolin Huang, Weiping Zhang, Shoumin |
| Copyright Year | 2021 |
| Description | Photocatalytic water splitting for hydrogen generation is a significant pathway for sustainable energy conversion and production. The photocatalysts with a Z-scheme water splitting charge transfer pathway is superior due to the good separation and migration ability of photoexcited charge carriers. Herein, $Co_{3}O_{4}/g-C_{3}N_{4}$ photocatalysts with Z-scheme charge transfer pathway were successfully constructed by an electrostatic interaction-annealing method. The as-prepared $Co_{3}O_{4}/g-C_{3}N_{4}$ ultra-thin nanosheets were tested and analyzed by XRD, EA, ICP, SEM, TEM, AFM, XPS, UV-Vis DRS, PL and photoelectrochemical measurements. Moreover, the influences of fabrication parameters on performance of $Co_{3}O_{4}/g-C_{3}N_{4}$ catalysts were investigated, and 0.5% $Co_{3}O_{4}/g-C_{3}N_{4}$ exhibited the optimal activity. Based on the characterization and catalytic performance, the Z-scheme charge transfer pathway of $Co_{3}O_{4}/g-C_{3}N_{4}$ was established and put forward. To further improve the catalytic performance of $Co_{3}O_{4}/g-C_{3}N_{4}$, 0.5% Pt was added as a co-catalyst. The obtained Pt/0.5% $Co_{3}O_{4}/g-C_{3}N_{4}$ was recyclable and remained the original catalytic water splitting performance within 20 h. The modification of $Co_{3}O_{4}$ and Pt improved the separation and migration of $e^{−}$ and $h^{+}$, and induced the increased hydrogen evolution rate of $g-C_{3}N_{4}$. |
| Starting Page | 3341 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano11123341 |
| Journal | Nanomaterials |
| Issue Number | 12 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-09 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Co3o4/g-c3n4 Ultra-thin Nanosheets Z-scheme Charge Transfer Pathway Photocatalytic Water Splitting H2 Evolution |
| Content Type | Text |
| Resource Type | Article |
