Constructing Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> Ultra-Thin Nanosheets with Z-Scheme Charge Transfer Pathway for Efficient Photocatalytic Water Splitting
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. H...
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| Format: | Article |
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MDPI AG
2021-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/12/3341 |
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| author | Yuan Guo Wanqing Liu Wei Duan Siyu Wang Liqun Jia Guoqing Zhang Baolin Zhu Weiping Huang Shoumin Zhang |
| author_facet | Yuan Guo Wanqing Liu Wei Duan Siyu Wang Liqun Jia Guoqing Zhang Baolin Zhu Weiping Huang Shoumin Zhang |
| author_sort | Yuan Guo |
| collection | DOAJ |
| 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<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> photocatalysts with Z-scheme charge transfer pathway were successfully constructed by an electrostatic interaction-annealing method. The as-prepared Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> 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<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> catalysts were investigated, and 0.5% Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> exhibited the optimal activity. Based on the characterization and catalytic performance, the Z-scheme charge transfer pathway of Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> was established and put forward. To further improve the catalytic performance of Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub>, 0.5% Pt was added as a co-catalyst. The obtained Pt/0.5% Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> was recyclable and remained the original catalytic water splitting performance within 20 h. The modification of Co<sub>3</sub>O<sub>4</sub> and Pt improved the separation and migration of e<sup>−</sup> and h<sup>+</sup>, and induced the increased hydrogen evolution rate of g-C<sub>3</sub>N<sub>4</sub>. |
| first_indexed | 2024-03-10T03:26:44Z |
| format | Article |
| id | doaj.art-c8a4730ce93d42ff969b5468a0a378f1 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T03:26:44Z |
| publishDate | 2021-12-01 |
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| series | Nanomaterials |
| spelling | doaj.art-c8a4730ce93d42ff969b5468a0a378f12023-11-23T09:51:14ZengMDPI AGNanomaterials2079-49912021-12-011112334110.3390/nano11123341Constructing Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> Ultra-Thin Nanosheets with Z-Scheme Charge Transfer Pathway for Efficient Photocatalytic Water SplittingYuan Guo0Wanqing Liu1Wei Duan2Siyu Wang3Liqun Jia4Guoqing Zhang5Baolin Zhu6Weiping Huang7Shoumin Zhang8Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, ChinaDepartment of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, ChinaDepartment of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, ChinaDepartment of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, ChinaDepartment of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, ChinaDepartment of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, ChinaDepartment of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, ChinaDepartment of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, ChinaDepartment of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, ChinaPhotocatalytic 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<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> photocatalysts with Z-scheme charge transfer pathway were successfully constructed by an electrostatic interaction-annealing method. The as-prepared Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> 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<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> catalysts were investigated, and 0.5% Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> exhibited the optimal activity. Based on the characterization and catalytic performance, the Z-scheme charge transfer pathway of Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> was established and put forward. To further improve the catalytic performance of Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub>, 0.5% Pt was added as a co-catalyst. The obtained Pt/0.5% Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> was recyclable and remained the original catalytic water splitting performance within 20 h. The modification of Co<sub>3</sub>O<sub>4</sub> and Pt improved the separation and migration of e<sup>−</sup> and h<sup>+</sup>, and induced the increased hydrogen evolution rate of g-C<sub>3</sub>N<sub>4</sub>.https://www.mdpi.com/2079-4991/11/12/3341Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> ultra-thin nanosheetsZ-scheme charge transfer pathwayphotocatalyticwater splittingH<sub>2</sub> evolution |
| spellingShingle | Yuan Guo Wanqing Liu Wei Duan Siyu Wang Liqun Jia Guoqing Zhang Baolin Zhu Weiping Huang Shoumin Zhang Constructing Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> Ultra-Thin Nanosheets with Z-Scheme Charge Transfer Pathway for Efficient Photocatalytic Water Splitting Nanomaterials Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> ultra-thin nanosheets Z-scheme charge transfer pathway photocatalytic water splitting H<sub>2</sub> evolution |
| title | Constructing Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> Ultra-Thin Nanosheets with Z-Scheme Charge Transfer Pathway for Efficient Photocatalytic Water Splitting |
| title_full | Constructing Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> Ultra-Thin Nanosheets with Z-Scheme Charge Transfer Pathway for Efficient Photocatalytic Water Splitting |
| title_fullStr | Constructing Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> Ultra-Thin Nanosheets with Z-Scheme Charge Transfer Pathway for Efficient Photocatalytic Water Splitting |
| title_full_unstemmed | Constructing Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> Ultra-Thin Nanosheets with Z-Scheme Charge Transfer Pathway for Efficient Photocatalytic Water Splitting |
| title_short | Constructing Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> Ultra-Thin Nanosheets with Z-Scheme Charge Transfer Pathway for Efficient Photocatalytic Water Splitting |
| title_sort | constructing co sub 3 sub o sub 4 sub g c sub 3 sub n sub 4 sub ultra thin nanosheets with z scheme charge transfer pathway for efficient photocatalytic water splitting |
| topic | Co<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> ultra-thin nanosheets Z-scheme charge transfer pathway photocatalytic water splitting H<sub>2</sub> evolution |
| url | https://www.mdpi.com/2079-4991/11/12/3341 |
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