Sol–gel synthesis and characterization of silica film with two opposite structures: Nano-porous and protuberant

Liu, Qiang; Zhang, Jin; Liu, Qingju; Zhu, Zhongqi; Chen, Juan

doi:10.1016/j.matchemphys.2008.09.056

Cited by 15 publications

(4 citation statements)

References 17 publications

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“…The synthesis process of inorganic materials under the control of an organic template is known as a 'biocontrolled process'. The biocontrolled process is similar to 'biomineralisation', a process in which a mineral is formed by organisms, which is currently another research focus (Sommer et al, 2004;Liu et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Advanced design of Chinese traditional materials for the conservation of historic stone buildings

Liu¹,

Liu²,

Zeng³

et al. 2011

Journal of Archaeological Science

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Section: Introductionmentioning

confidence: 99%

Advanced design of Chinese traditional materials for the conservation of historic stone buildings

Liu¹,

Liu²,

Zeng³

et al. 2011

Journal of Archaeological Science

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“…e) shows XRD patterns of the montmorillonite-silica core-shell. The figure shows the broad peak at 22˚ corresponds to the typical diffraction of amorphous SiO 2 (Si-O short-order structure)[16]. The (001) diffraction peaks of Na-MMT at 6˚ are vanished,Figure 2(f), suggesting that clay platelets are delaminated during the sol-gel process.FTIR spectra have been used to characterize the prepared samples,Figure 3.…”

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confidence: 98%

Preparation and Characterization of Silica and Clay-Silica Core-Shell Nanoparticles Using Sol-Gel Method

Sadek¹,

Reda²,

Albilali³

2013

ANP

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Silica and montmorillonite-supported silica nanoparticles were prepared via an acid one step sol-gel process. The synthesized solids were characterized using XRD, FTIR, TEM and N 2 adsorption. The effect of preparing temperatures on the structure and properties of the silica nanoparticles were studied. The results show that the increase of annealing temperature from 25˚C to 200˚C, don't change amorphous state of silica. While for montmorillonite-supported silica the clay platelets are delaminated during the sol-gel process. TEM results showed that the average particle size of silica is increased by increasing temperature due to the particle sintering and the clay-silica nanoparticles possessed core-shell morphology with diameter of 29 nm. The surface area measurements showed that by increasing annealing temperature the surface area was decreased due to aggregation of particle. The clay-silica sample showed lower average pore width than that of the silica prepared at 200˚C indicating that it has a macropores structure. The adsorption efficiency of the prepared samples was tested by adsorption of protoporphyrin IX. The highest adsorption efficiency was found for SiO 2 prepared at 200˚C. Temkin model describe the equilibrium of adsorption of protoporphyrin IX on caly-silica nanoparticles under different conditions.

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“…The biomimetic process is inspired from biomineralization, a natural approach to advanced materials synthesis, by which various forms of laminated nanocomposites (e.g., egg, mollusk shells, bones and teeth) are synthesized by living organisms. As an artificial simulation process, the biomimetic or biocontrolled process is a new synthetic process that can produce useful film with similar designs, in which the inorganic materials with higher order structures and super performances are prepared under the action of some self-assembled organic templates containing anionic functional groups [6,7]. Therefore, it is important to study the interaction between the materials and substrate with templates for investigating the mechanism of synthesis process and improvement of mechanical properties [8].…”

Section: Introductionmentioning

confidence: 99%

Effects of surface energies of biomimetic materials for stone conservation on reinforcement properties

Liu

Zhang

et al. 2013

Heritage Science

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The conservation of historic stone buildings and sculptures is recently receiving growing attention and becoming a focus of research. However, it is difficult to estimate the effects of stone conservation, especially consolidating treatments. In this work, some biomimetic materials for stone conservation were prepared. The interaction between the protective materials and stone substrate was researched by testing their surface energy. Some thermodynamic parameters, including interfacial tension (γ fm ) and work of adhesion (W a ), were calculated. The effects of interaction between the materials and substrate on reinforcement properties were investigated. The results show that the strength of materials' adhesion to a solid surface could be better estimated from the value of W a /γ fm . It is helpful not only to indirectly determine the mechanical properties of the reinforcing agent but also to design some materials for stone conservation on a purpose not on a rather hit-or-miss basis.

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Sol–gel synthesis and characterization of silica film with two opposite structures: Nano-porous and protuberant

Cited by 15 publications

References 17 publications

Advanced design of Chinese traditional materials for the conservation of historic stone buildings

Advanced design of Chinese traditional materials for the conservation of historic stone buildings

Preparation and Characterization of Silica and Clay-Silica Core-Shell Nanoparticles Using Sol-Gel Method

Effects of surface energies of biomimetic materials for stone conservation on reinforcement properties

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