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| URI | http://purl.tuc.gr/dl/dias/FA9CDD09-11C1-4C36-8D0B-229E81A667E9 | - |
| Identifier | http://pubs.rsc.org/en/Content/Chapter/9781782623991-00105/978-1-78262-399-1 | - |
| Identifier | https://doi.org/10.1039/9781782623991-00105 | - |
| Language | en | - |
| Extent | 37 pages | en |
| Title | Producing self-cleaning, transparent and hydrophobic SiO2-crystalline TiO2 nanocomposites at ambient conditions for stone protection and consolidation | en |
| Creator | Kapridaki Chrysi | en |
| Creator | Καπριδακη Χρυση | el |
| Creator | Pinho Luís | en |
| Creator | Mosquera Maria J. | en |
| Creator | Maravelaki Pagona-Noni | en |
| Creator | Μαραβελακη Παγωνα | el |
| Publisher | Royal Society of Chemistry | en |
| Content Summary | Three innovative strengthening, protective and self-cleaning agents for marble and calcareous stones were synthesized by using a simple sol-gel route at ambient conditions. TiO2 nanoparticles and hydroxyl-terminated polydimethylsiloxane (PDMS) were incorporated in a tetraethoxysilane (TEOS) matrix in the presence of oxalic acid (Ox). Both the Ox concentration and the addition sequence of the reagent agents were assessed through the evaluation of the microstructure and of the physicochemical and self-cleaning properties of all the synthesized nanocomposites. The presence of Ox contributed to the production of both homogeneous materials and photoactive independent domains of anatase TiO2 crystals at ambient conditions. In addition, the role played by Ox as a hole-scavenger increased the photocatalytic activity of the nanocomposites. The synthesized crack-free, homogeneous, transparent and photoactive nanocomposites provide self-cleaning, water repellency and consolidation properties to building substrates, while respecting their aesthetic qualities. | en |
| Type of Item | Κεφάλαιο σε Βιβλίο | el |
| Type of Item | Book Chapter | en |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2018-06-21 | - |
| Date of Publication | 2016 | - |
| Subject | Nanocomposites | en |
| Subject | Oxalic acid | en |
| Subject | Polydimethylsiloxane | en |
| Subject | Silicones | en |
| Subject | Sol-gel process | en |
| Subject | Sol-gels | en |
| Subject | Titanium dioxide | en |
| Subject | Aesthetic qualities | en |
| Subject | Ambient conditions | en |
| Subject | Consolidation properties | en |
| Subject | Homogeneous materials | en |
| Subject | Hydroxyl-terminated | en |
| Subject | Photocatalytic activities | en |
| Subject | Polydimethylsiloxane PDMS | en |
| Subject | Self-cleaning properties | en |
| Subject | Cleaning | en |
| Bibliographic Citation | C. Kapridaki, L. Pinho, M. J. Mosquera and P. Maravelaki-Kalaitzaki, "Producing self-cleaning, transparent and hydrophobic SiO2-crystalline TiO2 nanocomposites at ambient conditions for stone protection and consolidation," in Self-cleaning Coatings: Structure, Fabrication and Application, Junhui He, Ed. Cambridge, UK: Royal Society of Chemistry, 2016, pp. 105-141. doi: 10.1039/9781782623991-00105 | en |
| Book Title | Self-cleaning Coatings: Structure, Fabrication and Application | en |
| Book Series | en |
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