Influence of glass composition and alteration solution on leached silicate glass structure: A solid-state NMR investigation

Angeli, Frédéric; Gaillard, Marina; Jollivet, Patrick; Charpentier, Thibault

doi:10.1016/j.gca.2006.02.023

Cited by 86 publications

(67 citation statements)

References 47 publications

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“…Since the coordination of aluminum does not change, part of aluminum groups must be charge compensated by other cations than sodium, here calcium. As a consequence, an increase of the quadrupolar splitting and thus the linewidth of the 27 Al MAS spectra is expected, 47,48 as actually observed here. Therefore, rather than compensate the charges of BO 4 and AlO 4 groups, part of the sodium ions in the as-received fibers acts as additional network modifiers, probably forming non-bridging oxygen bonds with silicon groups and adopting a less homogeneous distribution.…”

Section: Discussionsupporting

confidence: 80%

“…Next, during alteration under silica saturated conditions, structural changes occurred within alteration layer. The AlO 4 et ZrO 6 groups mostly charge-balanced by sodium in the pristine glass become compensated by calcium in the altered layer, as has been reported previously for other silicate glasses 47 and more recently for ISG. 53 While as has been shown elsewhere, 19,43 boron is mostly absent from the altered layer, but trigonal boron groups are dissolved preferentially over tetrahedral units in the asreceived fiber.…”

Section: Discussionsupporting

confidence: 79%

“…In glasses with compositions similar to that of ISG, sodium acts mainly as a charge compensator, first for AlO 4 and then, for the residual Na available, for BO 4 groups. 47 The 23 Na- 27 Al REDOR experiments clearly show that the proportion of sodium atoms in the vicinity of aluminum groups is lower in the as-received fibers. Since the coordination of aluminum does not change, part of aluminum groups must be charge compensated by other cations than sodium, here calcium.…”

Section: Discussionmentioning

confidence: 96%

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Effect of thermally induced structural disorder on the chemical durability of International Simple Glass

et al. 2018

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While the influence of silicate oxide glass composition on its chemical durability is increasingly known, the contribution of structure only is less well understood, yet is crucial for an accurate description of aqueous alteration mechanisms. The effect of structural disorder can be investigated by varying the thermal history of the glass. Furthermore, the structural changes generated by selfirradiation in nuclear glasses can be compared with those induced by fast quenching. In the context of deep geological disposal of vitreous matrices, it is then challenging to address the structural impact on glass durability. Here, a borosilicate glass, the International Simple Glass, was fiberized to obtain a rapidly quenched sample. The quenching rate and fictive temperature were evaluated from in situ Raman and Brillouin spectroscopies. Multinuclear nuclear magnetic resonance was used to obtain insight into the effect of quenching on the pristine and altered glass structure. Higher bond angle distribution and lower mixing of alkalis were observed in the fast quenched glass. Some of AlO 4 groups are then Ca-compensated, while a part of BO 4 is transformed into BO 3 units. The structural modifications increase the hydrolysis of the silicate network occurring in the forward rate regime at 90°C by a factor of 1.4-1.8 depending on the pH value. Residual rate regime is similarly affected, more significantly at the beginning of the experiments conducted in silica saturated solutions. These findings prove that the reactivity of glass remains controlled by its structure under the various alteration regimes.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 96%

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Effect of thermally induced structural disorder on the chemical durability of International Simple Glass

et al. 2018

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“…The texture of the gel is porous (Ledieu et al, 2004;Rebiscoul et al, 2004;Cailleteau et al, 2008) and its structure has been investigated by high-resolution solid-state Nuclear Magnetic Resonance (NMR) for probing the glass evolution during alteration (transformation into gel) (e.g. Bunker et al, 1986Bunker et al, , 1988Angeli et al, 2001Angeli et al, , 2006Angeli et al, , 2008Tsomaia et al, 2003;Ledieu et al, 2004). The glass composition influences the gel structure and its retention properties.…”

Section: Introductionmentioning

confidence: 99%

Elemental and isotopic (29Si and 18O) tracing of glass alteration mechanisms

Valle¹,

Verney-Carron²,

Sterpenich³

et al. 2010

Geochimica et Cosmochimica Acta

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104

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“…This difference of behavior between the two glasses could result in the structure change involves by the growth of gold nanoparticles and highlighted by the NMR structural study. Angeli and coworkers have shown how the glass structure and composition influence the gel properties especially in basic media [18].…”

Section: Resultsmentioning

confidence: 99%

Control of selective silicate glass coloration by gold metallic nanoparticles: structural investigation, growth mechanisms, and plasmon resonance modelization

et al. 2013

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Soda lime silicate oxide glasses are studied to perform coloration thanks to gold nanoparticles' crystallization. This precipitation is conducted by chemical reduction of gold ions with stannous or antimony oxides as reducing agents. A control of the rendered coloration between blank to red shades has been obtained using Sb 2 O 3 agent and appropriate thermal treatments. The glasses remain colorless while heating up to 450°C. Structural glasses evolution is studied by MAS NMR spectroscopy of 29 Si and 23 Na nuclei to investigate the silicate network polymerization change and the modification of sodium/oxygen bond length versus nucleation state and growth of Au nanoparticles. A clear decrease of the Q 2 species part is observed with nanoparticles growth confirmed by the evolution of chemical shift for 23 Na resonance. A slight network polymerization is then showed independently of the only thermal treatment. This structural change could be induced by the antimony oxidation and change towards higher coordinations. Finally, the glasses chemical durability has been studied by leaching tests and shows lower alteration for colored glass. The optical spectroscopy applied to colored glasses has given rise to plasmon resonance phenomena at around 600 nm which is the typical surface plasmon resonance of gold for a refractive medium index of 1.5, with a shift of the resonance towards the higher wavelengths with increasing thermal treatment temperature. This shift is modelized by Drude and MIE approaches and confirms the trend observed by UV-visible measurement with an increasing absorption at the SPR correlated to a typical Ostwald growth mechanism according to the increase of the annealing temperature.

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Influence of glass composition and alteration solution on leached silicate glass structure: A solid-state NMR investigation

Cited by 86 publications

References 47 publications

Effect of thermally induced structural disorder on the chemical durability of International Simple Glass

Effect of thermally induced structural disorder on the chemical durability of International Simple Glass

Elemental and isotopic (29Si and 18O) tracing of glass alteration mechanisms

Control of selective silicate glass coloration by gold metallic nanoparticles: structural investigation, growth mechanisms, and plasmon resonance modelization

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