| Titre : |
Acrylate boron silane polymer/carbon nitride–titanium dioxide composite coatings with enhancing photocatalytic antifouling performance under visible light |
| Type de document : |
texte imprimé |
| Auteurs : |
Yakun Li, Auteur ; Jianjun Liao, Auteur ; Haiqi Zhang, Auteur ; Xingsan Tang, Auteur ; Shiqiang Zhong, Auteur ; Qiuxia Li, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 1445-1458 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Caractérisation
Copolymère acrylate de bore silane
Dioxyde de titane
Formulation (Génie chimique)
Nitrure de carbone
Photocatalyse
Revêtement auto-nettoyant
Revêtements antisalissures
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Herein, a series of antifouling coatings (CTNCs) composed of acrylic boron silicon polymer (ABSP) and environmental-friendly photocatalysts C3N4-TiO2(B) heterojunctions were successfully prepared. Large-scale production and low-cost photocatalyst C3N4-TiO2(B) can be perfectly compounded with ABSP, realizing the possibility of engineering application. SEM and AFM analysis showed that the C3N4-TiO2(B) particles were firmly embedded in the coating, but serious agglomeration appeared when the content of the photocatalyst exceeds 7 wt%. The hydrophilic nanoparticles can accelerate the hydrolysis and adjust the self-polishing rates of the polymer matrix to repel bacteria and algae. When the content of C3N4-TiO2(B) was in the range of 5–7 wt%, the CTNCs displayed better resistance to Nitzschia closterium, Staphylococcus aureus and Escherichia coli than the coating containing pure C3N4, and the anti-bacterial rates towards S. aureus and E. coli can reach 99.72% and 98.96%. |
| Note de contenu : |
- EXPERIMENTAL SECTION :
- Materials
- Preparation of TiO 2 (B) single-crystalline nanorods
- Preparation of C 3 N 4 -TiO 2 (B)
- Synthesis of ABSP
- Preparation of CTNCs
- Characterization
- RESULTS AND DISCUSSION :
- Structural characteristics of C 3 N 4 –TiO 2 (B) heterojunction
- Surface chemical states of C3N4-TiO2 heterojunction
- Surface morphology of CTNCs
- Surface wettability and self-polishing rates of CTNCs
- Diatom antisettling test
- Anti-bacterial test
- Environmental properties
- Antifouling mechanism of CTNCs
- Table 1 : The preparation formula of CTNCs |
| DOI : |
https://doi.org/10.1007/s11998-022-00757-0 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-022-00757-0.pdf?pdf=button% [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39728 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 4 (07/2023) . - p. 1445-1458
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Acrylate boron silane polymer/carbon nitride–titanium dioxide composite coatings with enhancing photocatalytic antifouling performance under visible light in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)
