Deposition of Hybrid Photocatalytic Layers for Air Purification Using Commercial TiO2 Powders
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Synthesis
2.3. Experimental Methods
3. Results and Discussion
3.1. TiO2 Powder Comparison
3.2. Polymer/TiO2 and Sol–Gel/TiO2 Hybrid Layers
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Bulk | Polymer (PEG, PVP or PMMA) | Sol–Gel | Sol–Gel | |
---|---|---|---|---|
powder added | P25; P90; PF2; T805; K7000; K7050; PC105; PC500 * | P25 | P25 | - |
deposition method | spreading paste with razor blade | dip-coating | dip-coating (DC) or spray-coating (SC) | dip-coating or spray-coating |
sample name | P25; P90; PF2; T805; K7000; K7050; PC105; PC500 | PEG P25;PVP P25;PMMA P25 | DC sol–gel P25;SC sol–gel P25 | DC sol–gel ref; SC sol–gel ref |
P25 | P90 | PF2 | T805 | K7000 | K7050 | PC105 | PC500 | |
---|---|---|---|---|---|---|---|---|
Estimated crystal size (nm) | 32 | 17 | 30 | 31 | 11 | 9 | 33 | 10 |
Surface area (m/g) | 35–65 | 70–110 | 45–70 | 35–55 | >225 | >225 | ∼90 | ∼350 |
Sample Name | (1 h) (%) | Sample Name | (1 h) (%) |
---|---|---|---|
P25 | 44 | PEG P25 | 96 |
P90 | 38 | PVP P25 | 98 |
PF2 | 82 | PMMA P25 | 98 |
T805 | 60 | DC sol–gel ref | 81 |
K7000 | 38 | SC sol–gel ref | 90 |
K7050 | 40 | DC sol–gel P25 | 81 |
PC105 | 48 | SC sol–gel P25 | 63 |
PC500 | 34 |
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Cosaert, E.; Wolfs, C.; Lambert, S.D.; Heynderickx, G.J.; Poelman, D. Deposition of Hybrid Photocatalytic Layers for Air Purification Using Commercial TiO2 Powders. Molecules 2021, 26, 6584. https://doi.org/10.3390/molecules26216584
Cosaert E, Wolfs C, Lambert SD, Heynderickx GJ, Poelman D. Deposition of Hybrid Photocatalytic Layers for Air Purification Using Commercial TiO2 Powders. Molecules. 2021; 26(21):6584. https://doi.org/10.3390/molecules26216584
Chicago/Turabian StyleCosaert, Ewoud, Cédric Wolfs, Stéphanie D. Lambert, Geraldine J. Heynderickx, and Dirk Poelman. 2021. "Deposition of Hybrid Photocatalytic Layers for Air Purification Using Commercial TiO2 Powders" Molecules 26, no. 21: 6584. https://doi.org/10.3390/molecules26216584