Effect of trace lanthanum ion on dissolution and crystal growth of calcium carbonate

Kamiya, Naoki; Kagi, Hiroyuki; Tsunomori, Fumiaki; Tsuno, Hiroshi; Notsu, Kenji

doi:10.1016/j.jcrysgro.2004.04.006

Cited by 20 publications

(10 citation statements)

References 30 publications

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“…It is reported in literature that vaterite to calcite conversion may be hindered by the sorption of ions (Kamiya et al, 2004;Yokoyama et al, 2012). Adsorption of As oxyanions can either inhibit the vaterite-calcite transformation by lowering the Gibbs free energy of vaterite surfaces or increase the vaterite lifetime by increasing the activation energy for the reaction (Yokoyama et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Arsenic uptake in bacterial calcite

Catelani

Perito

Bellucci

et al. 2018

Geochimica et Cosmochimica Acta

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Bio-mediated processes for arsenic (As) uptake in calcite were investigated by means of X-ray Diffraction (XRD) and Xray Absorption Spectroscopy (XAS) coupled with X-ray Fluorescence measurements. The environmental bacterial strain Bacillus licheniformis BD5, sampled at the Bullicame Hot Springs (Viterbo, Central Italy), was used to synthesize calcite from As-enriched growth media. Both liquid and solid cultures were applied to simulate planktonic and biofilm community environments, respectively. Bacterial calcite samples cultured in liquid media had an As enrichment factor (Kd) 50 times higher than that from solid media. The XRD analysis revealed an elongation of the crystal lattice along the c axis (by 0.03 Å ) for biogenic calcite, which likely resulted from the substitution of larger arsenate for carbonate in the crystal. The XAS data also showed a clear difference in the oxidation state of sorbed As between bacterial and abiotic calcite. Abiotic chemical processes yielded predominantly As(V) uptake whereas bacterial precipitation processes led to the uptake of both As(III) and As(V). The presence of As(III) in bacterial calcite is proposed to result from subsequent reduction of arsenate to arsenite by bacterial activities. To the best of our knowledge, this is the first experimental observation of the incorporation of As(III) in the calcite crystal lattice, revealing a critical role of biochemical processes for the As cycling in nature.

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Section: Discussionmentioning

confidence: 99%

Arsenic uptake in bacterial calcite

Catelani

Perito

Bellucci

et al. 2018

Geochimica et Cosmochimica Acta

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“…Chemical structure of SNARF-1 in aqueous solution strongly depends on pH and changes from the cation form to the anion form via the lacton form with increasing pH from 5.0 to 8.5. It is well known that H + exclusively affects the SNARF-1 structure and the fluorescence spectra of SNARF-1 [18].…”

Section: Ph Monitoring By Use Of a Fluorescent Ph Indicator Snarf-1mentioning

confidence: 99%

“…The pH value of the solution can be estimated from the intensity ratio between the cation band and the anion band. In general, curve-fitting analysis by the least-squares method can be applied to each obtained fluorescence spectrum [18]. Using a typical personal computer, this process requires much longer time (a few seconds) than with time interval of the repetitional spectral time acquisition (300 ms).…”

Section: Ph Monitoring By Use Of a Fluorescent Ph Indicator Snarf-1mentioning

confidence: 99%

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Confocal fluorescence spectrometry for observation of crystal dissolution kinetics

Fukura¹,

Tsunomori²,

Iwai³

et al. 2004

Journal of Crystal Growth

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“…13 Tsuno et al 14 reported that the addition of approximately 10¯M La 3+ into a supersaturated solution of calcium carbonate yielded stabilization of vaterite. As a possible explanation of this phenomenon, Kamiya et al 15 suggested that La 3+ exclusively inhibits crystal growth of calcite. However, the inhibition mechanism has not been clear, and it is needed to find how the La 3+ inhibitor affects calcium carbonate precipitation and crystal growth.…”

mentioning

confidence: 99%

Dynamic Light Scattering Study of the Inhibiting Effect on Crystal Growth of Calcium Carbonate

Kamiya¹,

Tsunomori²,

Kagi³

et al. 2011

Bulletin of the Chemical Society of Japan

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This study reports the first application of dynamic light scattering to observations of crystal growth of calcium carbonate from a supersaturated solution. Crystal size distributions around the critical nucleus radius (µ2 nm at Ω = 18) were measured in La-free and 5¯M La-doped conditions. In the former, the intensity of scattered light increased smoothly and particle size increased with time. In the case of La-doped condition, the total scattering volume of particles was smaller, and grew very slowly compared with the La-free condition. These results show that the inhibiting effect of La 3+ on calcium carbonate occurred from the initial stage of crystal growth.

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Effect of trace lanthanum ion on dissolution and crystal growth of calcium carbonate

Cited by 20 publications

References 30 publications

Arsenic uptake in bacterial calcite

Arsenic uptake in bacterial calcite

Confocal fluorescence spectrometry for observation of crystal dissolution kinetics

Dynamic Light Scattering Study of the Inhibiting Effect on Crystal Growth of Calcium Carbonate

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