Photocatalytic and Antimicrobial Properties of Ag2O/TiO2 Heterojunction
Abstract
:1. Introduction
2. Materials and Methods
2.1. Preparation of Ag2O/TiO2 Photocatalysts
2.2. Characterization
2.3. Photocatalytic Activity Tests
2.4. Bactericidal Activity Test
2.5. Fungicidal Activity Test
2.5.1. Suspension Method
2.5.2. Spore Counting Method
3. Results and Discussion
3.1. Characterization of Ag2O/TiO2 Samples
3.2. Photocatalytic Activity
3.2.1. UV/Vis-Induced Methanol Dehydrogenation
3.2.2. UV/Vis-Induced Acetic Acid Oxidation
3.2.3. Visible Light Photocatalytic Activity
3.3. Antimicrobial Properties of Ag2O/TiO2
4. Summary and Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample Name | Crystalline Content * (%) | Crystallite Size (nm) | ||||
---|---|---|---|---|---|---|
Anatase | Rutile | Ag2O | Anatase | Rutile | Ag2O | |
Ag2O/P25 | 82.5 | 16.9 | 0.6 | 21.8 | 38.5 | 18.3 |
Ag2O/ST01 | 99.9 | - | 0.1 | 7.8 | - | 3.2 |
Ag2O/ST41 | 99.6 | - | 0.4 | 75.7 | - | 7.8 |
Ag2O/TiO6 | 7.3 | 92.2 | 0.5 | 6.3 | 15.9 | 13.0 |
Ag2O/RUT | 2.0 | 97.4 | 0.6 | 38.9 | 86.1 | 29.8 |
Ag2O/RUT’ | 11.5 | 87.4 | 0.7 | 109.2 | 170.1 | 41.3 |
Ag2O | - | - | 100 | - | - | 58.7 |
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Endo-Kimura, M.; Janczarek, M.; Bielan, Z.; Zhang, D.; Wang, K.; Markowska-Szczupak, A.; Kowalska, E. Photocatalytic and Antimicrobial Properties of Ag2O/TiO2 Heterojunction. ChemEngineering 2019, 3, 3. https://doi.org/10.3390/chemengineering3010003
Endo-Kimura M, Janczarek M, Bielan Z, Zhang D, Wang K, Markowska-Szczupak A, Kowalska E. Photocatalytic and Antimicrobial Properties of Ag2O/TiO2 Heterojunction. ChemEngineering. 2019; 3(1):3. https://doi.org/10.3390/chemengineering3010003
Chicago/Turabian StyleEndo-Kimura, Maya, Marcin Janczarek, Zuzanna Bielan, Dong Zhang, Kunlei Wang, Agata Markowska-Szczupak, and Ewa Kowalska. 2019. "Photocatalytic and Antimicrobial Properties of Ag2O/TiO2 Heterojunction" ChemEngineering 3, no. 1: 3. https://doi.org/10.3390/chemengineering3010003