| Titre : |
Synthesis and characterization of porous TiO2 and its application in hydrophilic coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Zichen Wu, Auteur ; Rui Wang, Auteur ; Dongyun Li, Auteur ; Meilin Sungao, Auteur ; Yang Xu, Auteur ; Hong Liang Ge, Auteur |
| Année de publication : |
2024 |
| Article en page(s) : |
p. 1361-1372 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Caractérisation
Colloides
Dioxyde de titane
Hydrophilie
Matériaux poreux
Polyéthylène glycol
Revêtements
Sol-gel, Procédé
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A sol-gel and phase separation method were employed to synthesize porous TiO2 coating materials, which were applied to two types of transparent substrates. The coating preparation process is simple, cost-effective, and allows for the adjustment of pore structures. The study investigated the impact of the microstructure, substrate, and UV light exposure on the hydrophilic properties of the TiO2 coating materials. The results indicate that the hydrophilicity of TiO2 coating materials prepared with resin as the substrate is inferior to that of similar coatings prepared with glass as the substrate. Furthermore, the hydrophilic performance of glass substrates coated with porous TiO2 is superior to those coated with dense TiO2. Glass substrates coated with porous TiO2 exhibit superhydrophilicity after 1 h of UV light exposure. The hydrophilic mechanism of the coating material surface was analyzed using surface energy theory, capillary theory, and photo-induced hydrophilic theory. |
| Note de contenu : |
- Experimental : Raw materials - Preparation of TiO2 hydrophilic coating - Characterization
- Results and discussion : Effect of additives on microstructure of TiO2 gel
- Effect of PEG addition
- Effect of citric acid
- Effect of solvents : X-ray diffraction (XRD) - Fourier transform infrared (FTIR) - XPS spectra analysis - UV–Visible spectroscopy - Water contact angle |
| DOI : |
https://doi.org/10.1007/s11998-023-00898-w |
| En ligne : |
https://drive.google.com/file/d/1kRM4eytKPEEh7bwRDWTri9Pep_Gq0oQa/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41303 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 4 (07/2024) . - p. 1361-1372
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