Self-Assembly Strategy for Synthesis of WO<sub>3</sub>@TCN Heterojunction: Efficient for Photocatalytic Degradation and Hydrogen Production via Water Splitting
Herein, a WO<sub>3</sub>@TCN photocatalyst was successfully synthesized using a self-assembly method, which demonstrated effectiveness in degrading organic dyestuffs and photocatalytic evolution of H<sub>2</sub>. The synergistic effect between WO<sub>3</sub> and T...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/30/2/379 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832587787055923200 |
|---|---|
| author | Li Zhou Wenjie Zhang Zezhao Huang Feng Hu Peng Li Xiaoquan Yao |
| author_facet | Li Zhou Wenjie Zhang Zezhao Huang Feng Hu Peng Li Xiaoquan Yao |
| author_sort | Li Zhou |
| collection | DOAJ |
| description | Herein, a WO<sub>3</sub>@TCN photocatalyst was successfully synthesized using a self-assembly method, which demonstrated effectiveness in degrading organic dyestuffs and photocatalytic evolution of H<sub>2</sub>. The synergistic effect between WO<sub>3</sub> and TCN, along with the porous structure of TCN, facilitated the formation of a heterojunction that promoted the absorption of visible light, accelerated the interfacial charge transfer, and inhibited the recombination of photogenerated electron–hole pairs. This led to excellent photocatalytic performance of 3%WO<sub>3</sub>@TCN in degrading TC and catalyzing H<sub>2</sub> evolution from water splitting under visible-light irradiation. After modulation, the optimal 3%WO<sub>3</sub>@TCN exhibited a maximal degradation rate constant that was twofold higher than that of TCN alone and showed continuous H<sub>2</sub> generation in the photocatalytic hydrogen evolution. Mechanistic studies revealed that •O<sub>2</sub><sup>−</sup> constituted the major active species for the photocatalytic degradation of tetracycline. Experimental and DFT results verified the electronic transmission direction of WO<sub>3</sub>@TCN heterojunction. Overall, this study facilitates the structural design of green TCN-based heterojunction photocatalysts and expands the application of TCN in the diverse photocatalytic processes. Additionally, this study offers valuable insights into strategically employing acid regulation modulation to enhance the performance of carbon nitride-based photocatalysts by altering the topography of WO<sub>3</sub>@TCN composite material dramatically. |
| format | Article |
| id | doaj-art-1ff0071f700143b4a01d83b669637bd7 |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-1ff0071f700143b4a01d83b669637bd72025-01-24T13:43:50ZengMDPI AGMolecules1420-30492025-01-0130237910.3390/molecules30020379Self-Assembly Strategy for Synthesis of WO<sub>3</sub>@TCN Heterojunction: Efficient for Photocatalytic Degradation and Hydrogen Production via Water SplittingLi Zhou0Wenjie Zhang1Zezhao Huang2Feng Hu3Peng Li4Xiaoquan Yao5Department of Applied Chemistry, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Chemistry, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Chemistry, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Chemistry, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Chemistry, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Applied Chemistry, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaHerein, a WO<sub>3</sub>@TCN photocatalyst was successfully synthesized using a self-assembly method, which demonstrated effectiveness in degrading organic dyestuffs and photocatalytic evolution of H<sub>2</sub>. The synergistic effect between WO<sub>3</sub> and TCN, along with the porous structure of TCN, facilitated the formation of a heterojunction that promoted the absorption of visible light, accelerated the interfacial charge transfer, and inhibited the recombination of photogenerated electron–hole pairs. This led to excellent photocatalytic performance of 3%WO<sub>3</sub>@TCN in degrading TC and catalyzing H<sub>2</sub> evolution from water splitting under visible-light irradiation. After modulation, the optimal 3%WO<sub>3</sub>@TCN exhibited a maximal degradation rate constant that was twofold higher than that of TCN alone and showed continuous H<sub>2</sub> generation in the photocatalytic hydrogen evolution. Mechanistic studies revealed that •O<sub>2</sub><sup>−</sup> constituted the major active species for the photocatalytic degradation of tetracycline. Experimental and DFT results verified the electronic transmission direction of WO<sub>3</sub>@TCN heterojunction. Overall, this study facilitates the structural design of green TCN-based heterojunction photocatalysts and expands the application of TCN in the diverse photocatalytic processes. Additionally, this study offers valuable insights into strategically employing acid regulation modulation to enhance the performance of carbon nitride-based photocatalysts by altering the topography of WO<sub>3</sub>@TCN composite material dramatically.https://www.mdpi.com/1420-3049/30/2/379carbon nitrideheterojunctiontetracyclinephotocatalytic degradationhydrogen |
| spellingShingle | Li Zhou Wenjie Zhang Zezhao Huang Feng Hu Peng Li Xiaoquan Yao Self-Assembly Strategy for Synthesis of WO<sub>3</sub>@TCN Heterojunction: Efficient for Photocatalytic Degradation and Hydrogen Production via Water Splitting Molecules carbon nitride heterojunction tetracycline photocatalytic degradation hydrogen |
| title | Self-Assembly Strategy for Synthesis of WO<sub>3</sub>@TCN Heterojunction: Efficient for Photocatalytic Degradation and Hydrogen Production via Water Splitting |
| title_full | Self-Assembly Strategy for Synthesis of WO<sub>3</sub>@TCN Heterojunction: Efficient for Photocatalytic Degradation and Hydrogen Production via Water Splitting |
| title_fullStr | Self-Assembly Strategy for Synthesis of WO<sub>3</sub>@TCN Heterojunction: Efficient for Photocatalytic Degradation and Hydrogen Production via Water Splitting |
| title_full_unstemmed | Self-Assembly Strategy for Synthesis of WO<sub>3</sub>@TCN Heterojunction: Efficient for Photocatalytic Degradation and Hydrogen Production via Water Splitting |
| title_short | Self-Assembly Strategy for Synthesis of WO<sub>3</sub>@TCN Heterojunction: Efficient for Photocatalytic Degradation and Hydrogen Production via Water Splitting |
| title_sort | self assembly strategy for synthesis of wo sub 3 sub tcn heterojunction efficient for photocatalytic degradation and hydrogen production via water splitting |
| topic | carbon nitride heterojunction tetracycline photocatalytic degradation hydrogen |
| url | https://www.mdpi.com/1420-3049/30/2/379 |
| work_keys_str_mv | AT lizhou selfassemblystrategyforsynthesisofwosub3subtcnheterojunctionefficientforphotocatalyticdegradationandhydrogenproductionviawatersplitting AT wenjiezhang selfassemblystrategyforsynthesisofwosub3subtcnheterojunctionefficientforphotocatalyticdegradationandhydrogenproductionviawatersplitting AT zezhaohuang selfassemblystrategyforsynthesisofwosub3subtcnheterojunctionefficientforphotocatalyticdegradationandhydrogenproductionviawatersplitting AT fenghu selfassemblystrategyforsynthesisofwosub3subtcnheterojunctionefficientforphotocatalyticdegradationandhydrogenproductionviawatersplitting AT pengli selfassemblystrategyforsynthesisofwosub3subtcnheterojunctionefficientforphotocatalyticdegradationandhydrogenproductionviawatersplitting AT xiaoquanyao selfassemblystrategyforsynthesisofwosub3subtcnheterojunctionefficientforphotocatalyticdegradationandhydrogenproductionviawatersplitting |