Morphological characterization of water-based nanolime dispersions
| Autor: | Pagona-Noni Maravelaki, Vassilis Kilikoglou, Anastasia Michalopoulou, Ioannis Karatasios |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Archeology
Materials science Surfactants Materials Science (miscellaneous) Composite number Nanoparticle 02 engineering and technology Conservation engineering.material 01 natural sciences Portlandite law.invention chemistry.chemical_compound Dynamic light scattering law Electron microscopy Single displacement reaction Fourier transform infrared spectroscopy Spectroscopy Calcium hydroxide 010401 analytical chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Chemical engineering Chemistry (miscellaneous) engineering Electron microscope 0210 nano-technology General Economics Econometrics and Finance Consolidation Nanolime |
| Zdroj: | Journal of Cultural Heritage. 46:11-20 |
| ISSN: | 1296-2074 |
| DOI: | 10.1016/j.culher.2020.06.005 |
| Popis: | This research is co-financed by Greece and the European Union (European Social Fund- ESF) through the Operational Programme «Human Resources Development, Education and Lifelong Learning» in the context of the project “Strengthening Human Resources Research Potential via Doctorate Research” (MIS-5000432), implemented by the State Scholarships Foundation (IKY). Η έρευνα συγχρηματοδοτείται από την Ελλάδα και την Ευρωπαϊκή Ένωση (Ευρωπαϊκό Κοινωνικό Ταμείο - ΕΚΤ) στα πλαίσια του Επιχειρησιακού Προγράμματος «Ανάπτυξη Ανθρώπινου Δυναμικού, Εκπαίδευση και Δια βίου Μάθηση» Πράξη «Ενίσχυση του ανθρώπινου ερευνητικού δυναμικού μέσω της υλοποίησης διδακτορικής έρευνας» (MIS 5000432), που υλοποιήθηκε από το Ίδρυμα Κρατικών Υποτροφιών (IKY). Summarization: This paper studies the morphological characteristics of calcium hydroxide nanoparticles in water based dispersions, produced following the main bottom-up (CaCl2/NaOH replacement reaction) and top-down methodologies. The work focuses on the effect of three different surfactants (TritonX-100, n-octylamine and amylamine) on the morphological characteristics of the resulting Ca(OH)2 nanoparticles and compares them with the ones produced in a mixture of water and 2-propanol. Moreover, in an attempt to approach the compatibility enhancement with siliceous stones, a calcium hydroxide—TEOS composite was also studied. The morphological, chemical and the mineralogical characterization of the nanoparticles produced were carried out by electron microscopy (SEM), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). It is shown that the modifications induced by the production methodologies limited the agglomeration phenomena and altered the morphological characteristics of nanoparticles, when compared to the results obtained by the original bottom-up method, resulting in the synthesis of hexagonal, plate-like, rounded and angular portlandite nanoparticles. The size range of the nanoparticles extended from 60 to 350 nm. Presented on: Journal of Cultural Heritage |
| Databáze: | OpenAIRE |
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