Revolutionizing the Role of Solar Light Responsive BiVO4/BiOBr Heterojunction Photocatalyst for the Photocatalytic Deterioration of Tetracycline and Photoelectrocatalytic Water Splitting
Abstract
:1. Introduction
2. Materials and Methods
2.1. Synthesis of BiVO4
2.2. Fabrication of BiVO4/BiOBr Hybrid
2.3. Characterization Techniques
2.4. Photocatalytic Remediation of TC
2.5. PEC Studies
3. Results and Discussion
3.1. X-Ray Photoelectron Analysis (XPS)
3.2. X-Ray Diffraction (XRD) Analysis
3.3. Photoluminescence Study (PL)
3.4. Surface Area Analyses
3.5. Absorption Studies
3.6. Scanning Electron Microscopy (SEM)
3.7. Energy-Dispersive X-ray Spectroscopy (EDS) and Elemental Mapping
3.8. Photocatalytic Abatement Studies
3.8.1. Impact of the Catalyst Amount
3.8.2. Influence of pH
3.8.3. Effect of Different Light Sources
3.8.4. Scavenger Experiment
3.8.5. Mineralization Study
3.8.6. Reusability
3.9. GC-MS Study
Photocatalyst | Contaminant’s Concentration (ppm) | Time of the Reaction (min) | Source of Light | Rate Constant k | Decomposition Efficiency (%) | Ref. |
---|---|---|---|---|---|---|
BiVO4/MoS2 | TC (20 ppm) | 120 | Visible Light | - | 68.83 | [55] |
BiVO4/Fe3O4/CdS | TC (10 ppm) | 90 | Visible Light | 0.0232 min−1 | 87.37 | [56] |
BiVO4/Cu/g-C3N4 | TC | 120 | Visible Light | 0.0110 min−1 | 69.00 | [57] |
BiOBr/carbon fibre/g-C3N4 | TC (10 ppm) | 120 | Visible Light | 0.0150 min−1 | 86.10 | [58] |
CuInS2/Bi2MoO6 | TC (10 ppm) | 120 | Visible Light | 0.0150 min−1 | 84.70 | [59] |
MnTiO3/Ag/g-C3N4 | TC | 120 | Visible Light | - | 61.00 | [60] |
31BVBI | TC (10 ppm) | 140 | Sunlight | 0.0159 min−1 | 90.40 | current work |
3.10. PEC Measurements
3.11. Photo(electro)catalytic Mechanism
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Sample | Specific Surface Area (m2/g) | Mean Pore Volume (cm3/g) | Pore Diameter (nm) |
---|---|---|---|
BV | 32 | 0.551 | 13.62 |
BI | 28 | 0.520 | 12.72 |
11BVBI | 50 | 0.572 | 16.37 |
13BVBI | 54 | 0.661 | 19.14 |
31BVBI | 63 | 0.686 | 21.46 |
S.No. | Photocatalysts | Electrolyte | Electrode Type | Photocurrent Density | Moles of H2 Produced | References |
---|---|---|---|---|---|---|
1. | BiOBr nanosheet arrays | 0.1 M Na2SO4 | Photoanode | 0.0069 mA/cm2 at 0.9 V vs. RHE | - | [64] |
2. | Bi2S3/BiOBr/TiO2 | 0.5 M Na2SO4 | Photoanode | 0.0091 mA/cm2 at 1.2 V vs. RHE | 0.0047 µmolcm−2 s−1 | [65] |
3. | BiVO4 Nanowire | 0.1 M potassium phosphate buffer | Photoanode | 0.0093 μA/cm2 at 1.2 V vs. RHE | - | [66] |
4. | g-C3N4/BiVO4 | Lake wastewater | Photoanode | 9.6800 mA/cm2 at 1.0 V vs. Ag/AgCl | 0.0059 µmolcm−2 s−1 | [67] |
5. | BiVO4/BiOBr | 0.5 M Na2SO4 | Photoanode | 0.2198 mA/cm2 at 1.23 V vs. RHE | 1.8640 mmolcm−2 s−1 | Current Works |
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Singla, S.; Devi, P.; Basu, S. Revolutionizing the Role of Solar Light Responsive BiVO4/BiOBr Heterojunction Photocatalyst for the Photocatalytic Deterioration of Tetracycline and Photoelectrocatalytic Water Splitting. Materials 2023, 16, 5661. https://doi.org/10.3390/ma16165661
Singla S, Devi P, Basu S. Revolutionizing the Role of Solar Light Responsive BiVO4/BiOBr Heterojunction Photocatalyst for the Photocatalytic Deterioration of Tetracycline and Photoelectrocatalytic Water Splitting. Materials. 2023; 16(16):5661. https://doi.org/10.3390/ma16165661
Chicago/Turabian StyleSingla, Shelly, Pooja Devi, and Soumen Basu. 2023. "Revolutionizing the Role of Solar Light Responsive BiVO4/BiOBr Heterojunction Photocatalyst for the Photocatalytic Deterioration of Tetracycline and Photoelectrocatalytic Water Splitting" Materials 16, no. 16: 5661. https://doi.org/10.3390/ma16165661