A Novel Low-Cost Photocatalyst: Preparation, Characterization, and Photocatalytic Properties of CeO2-Diatomite Composites
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Preparation of Modified Diatomite
2.3. Preparation of CeO2-Diatomite Composites
2.4. Characterization Techniques
2.5. Assessment of Initial Adsorptive Surface Interactions
2.6. Photocatalytic Activity Assessment
3. Results and Discussion
3.1. Characterization of the Diatomites and CeO2-Diatomite Composites
3.1.1. FTIR Analysis
3.1.2. Raman Spectroscopy
3.1.3. XRD Analysis
3.1.4. ESEM Analysis
3.1.5. BET Analysis
3.1.6. Thermal Analysis
3.1.7. PL Analysis
3.1.8. Zeta Potential Analysis
3.2. Assessment of Photocatalytic Activity
3.2.1. Preliminary Experiments
3.2.2. Photocatalytic Degradation of MB using CeO2-Diatomite Composites
4. Conclusions
Supplementary Materials
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Specimens | SBET *, m2/g | Vp **, cm3/g | D ***, nm |
---|---|---|---|
D | 109 | 0.3082 | 4.55 |
MD | 118 | 0.3478 | 5.05 |
DC-11 | 76 | 0.0954 | 2.29 |
DC-12 | 84 | 0.1578 | 1.73 |
MDC-11 | 127 | 0.2032 | 3.83 |
MDC-12 | 126 | 0.1792 | 3.49 |
First-Order Kinetic Parameters Dose: 0.25 g/L | First-Order Kinetic Parameters Dose: 0.50 g/L | |||||
---|---|---|---|---|---|---|
A664 | k × 10−3, min−1 | t1/2, min | R × 10−3, cm−1 min−1 | k × 10−2, min−1 | t1/2, min | R × 10−3, cm−1 min−1 |
DC-11 | 2.24 | 309 | 2.15 | 5.91 | 117 | 5.68 |
DC-12 | 3.54 | 196 | 3.40 | 8.98 | 77 | 8.63 |
MDC-11 | 10.2 | 68 | 9.84 | 9.00 | 77 | 8.65 |
MDC-12 | 3.05 | 227 | 2.93 | 5.36 | 129 | 5.15 |
A292 | ||||||
DC-11 | 1.93 | 359 | 1.05 | 5.00 | 139 | 2.72 |
DC-12 | 2.76 | 251 | 1.50 | 6.56 | 106 | 3.57 |
MDC-11 | 2.76 | 251 | 1.50 | 6.11 | 113 | 3.32 |
MDC-12 | 2.49 | 278 | 1.35 | 4.33 | 160 | 2.35 |
A246 | ||||||
DC-11 | 1.42 | 488 | 0.344 | 6.19 | 112 | 1.50 |
DC-12 | 1.83 | 379 | 0.443 | 7.41 | 94 | 1.80 |
MDC-11 | 3.77 | 184 | 0.913 | 8.58 | 81 | 2.07 |
MDC-12 | 1.64 | 423 | 0.397 | 4.22 | 164 | 1.02 |
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Turkten, N. A Novel Low-Cost Photocatalyst: Preparation, Characterization, and Photocatalytic Properties of CeO2-Diatomite Composites. Water 2022, 14, 3373. https://doi.org/10.3390/w14213373
Turkten N. A Novel Low-Cost Photocatalyst: Preparation, Characterization, and Photocatalytic Properties of CeO2-Diatomite Composites. Water. 2022; 14(21):3373. https://doi.org/10.3390/w14213373
Chicago/Turabian StyleTurkten, Nazli. 2022. "A Novel Low-Cost Photocatalyst: Preparation, Characterization, and Photocatalytic Properties of CeO2-Diatomite Composites" Water 14, no. 21: 3373. https://doi.org/10.3390/w14213373