Marien, Cédric B. D.; Marchal, Clément; Koch, Alain; Robert, Didier et Drogui, Patrick 
ORCID: https://orcid.org/0000-0002-3802-2729
(2017).
Sol-gel synthesis of TiO2 nanoparticles: effect of Pluronic P123 on particle’s morphology and photocatalytic degradation of paraquat.
Environmental Science and Pollution Research
, vol. 24
, nº 14.
pp. 12582-12588.
DOI: 10.1007/s11356-016-7681-2.
Résumé
We report a facile method to tune TiO₂ nanoparticles’ morphology by modifying and an acid-catalyzed sol-gel synthesis with Pluronic P123. Synthesized particles were characterized by transmission electron microscopy, BET analysis, and X-ray diffraction spectroscopy. XRD analysis revealed a high anatase content while BET measurements showed that porous volume strongly depends on the amount of P123. We demonstrate that high amounts of P123 increase particle’s aspect-ratio from spherical to rod-shape morphology. We evaluated the photocatalytic performances for the removal of methyl viologen (paraquat) and found that best performances are obtained for the following weight ratio P123/TiO₂ = 7.5. Furthermore, P25 is less active than synthesized nanoparticles.
| Type de document: | Article |
|---|---|
| Mots-clés libres: | photocatalysis; sol-gel; TiO₂ nanoparticles; nanorods; methyl viologen |
| Centre: | Centre Eau Terre Environnement |
| Date de dépôt: | 12 févr. 2018 21:28 |
| Dernière modification: | 23 févr. 2022 19:16 |
| URI: | https://espace.inrs.ca/id/eprint/5698 |
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