Synthesis and morpho-structural characterization of nanostructured magnesium hydroxide obtained by a hydrothermal method

Sierra-Fernández, Aránzazu; Gomez-Villalba, L. S.; Milošević, Olivera; Fort, Rafael; Rabanal, M.E.

doi:10.1016/j.ceramint.2014.04.073

Cited by 53 publications

(37 citation statements)

References 44 publications

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“…Progress in the use of consolidating products based on calcium hydroxide nanoparticles for the consolidation of carbonate stone materials has been increasing in the last years. One of the main objectives has been to improve its properties to ensure the success of the process, including control of morphology and size of the nanoparticles (24), rate and the effect of carbonation in crystal growth (25), degree of crystallinity, penetration depth, concentration of solution (23), additives, catalysers (26) or solvents, and solubility (27).…”

Section: Consolidants Based On Ca(oh) 2 Nanoparticles Applied In Rockmentioning

confidence: 99%

New nanomaterials for applications in conservation and restoration of stony materials: A review

et al. 2017

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In recent times, nanomaterials have been applied in the construction and maintenance of the worldÅLs cultural heritage with the aim of improving the consolidation and protection treatments of damaged stone. These nanomaterials include important advantages that could solve many problems found in the traditional interventions. The present paper aims to carry out a review of the state of art on the application of nanotechnology to the conservation and restoration of the stony cultural heritage. We highlight the different types of nanoparticles currently used to produce conservation treatments with enhanced material properties and novel functionalities.

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Section: Consolidants Based On Ca(oh) 2 Nanoparticles Applied In Rockmentioning

confidence: 99%

New nanomaterials for applications in conservation and restoration of stony materials: A review

et al. 2017

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“…This method produces in situ hydroxides and requires dispersants to stabilize the system. The solvents used are volatile, environmentally friendly and with low surface tension so that they act as carrier solids for solid particles and ensure the homogeneity and penetration of nanoparticles into the depth of cellulose fibers [52].…”

Section: Synthesis Of Nanoparticles Of Alkaline Hydroxidesmentioning

confidence: 99%

Nanotechnologies in Cultural Heritage - Materials and Instruments for Diagnosis and Treatment

Ion¹,

Doncea²,

Carutiu³

2018

Novel Nanomaterials - Synthesis and Applications

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This chapter aims to evaluate the nanomaterials that can be used to diagnostic, conservation and restoration of different artifacts and monuments and that can contribute to solving the problems which could appear during weathering processes of them. The nanotechnology, as a new and revolutionary area in science, can improve the traditional methods currently used for restoration and preservation in cultural heritage and can contribute to the creation of new highly specialized methods for diagnostic and treatment of different artifacts or even monuments. With a smaller size, a higher penetrability, viscosity, thermal and magnetic properties, in comparison with the traditional materials, the nanomaterials can contribute to solve the problems deriving from specific phenomena that could appear during the intervention and to identify the potential newly formed products in the treated materials. In this chapter, some aspects about the nanomaterials used for conservation and restoration of stone and paper artifacts are evidenced and discussed.

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“…Magnesium hydroxide (Mg(OH) 2 ) is a nontoxic, efficient, thermally stable, smoke suppression, and environment-friendly flame retardant [ 1 , 2 , 3 , 4 , 5 ]. It is also used to neutralize acid waste water and gases rich in sulfuric oxides, applied in the biomedical field [ 6 , 7 , 8 , 9 ]. This is the reason why Mg(OH) 2 is a broad focus of the world’s attention.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of Magnesium Oxide Hydration Based on the Multi-Rate Model

Zhibo

Bai

et al. 2018

Materials

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The hydration of different active MgO under an unforced and ultrasonic condition was conducted in this paper to investigate the chemical kinetics model of the apparent reaction and discuss the mechanism combined with the product morphology. The dynamics fitting result shows that both the first-order and multi-rate model describe the hydration process under ultrasound well, while only the multi-rate model was right for the hydration process under an unforced condition. It indicated that the rate order of hydration was different in the hydration process under an unforced condition. The XRD and SEM show that the MgO hydration was a process of dissolution and crystallization. Part of the magnesium ions produced by dissolution of MgO did not diffuse into the solution in time, and adhered to the magnesium oxide surface and grew in situ instead. As a result, the difference in the hydration rate of the remaining MgO particles becomes wider and not in the same order (order of magnitude). The ultrasonic cavitation could prevent the in-situ growth of Mg(OH)2 crystal nuclei on the surface of MgO. It not only greatly improved the hydration rate of MgO and produced monodisperse Mg(OH)2 particles, but also made the first-order kinetics model fit the hydration process of MgO well.

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Synthesis and morpho-structural characterization of nanostructured magnesium hydroxide obtained by a hydrothermal method

Cited by 53 publications

References 44 publications

New nanomaterials for applications in conservation and restoration of stony materials: A review

New nanomaterials for applications in conservation and restoration of stony materials: A review

Nanotechnologies in Cultural Heritage - Materials and Instruments for Diagnosis and Treatment

Mechanism of Magnesium Oxide Hydration Based on the Multi-Rate Model

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