Skip to content

Research at St Andrews

Naturally occurring and biomimetic synthesized calcite spherulites

Research output: Contribution to journalArticle

DOI

Open Access Status

  • Embargoed (until 17/04/21)

Author(s)

Shitao Wu, Justine Blake, Li Guo, Wuzong Zhou

School/Research organisations

Abstract

Naturally occurring calcite spherulitic particles were collected from East Kirkton Quarry in Bathgate, Scotland. Their microstructure has been revealed, by using XRD, EDX, SEM and HRTEM, to consist of a low crystallinity core with deposition of multilayer radially oriented calcite microrods. The sur-rounding materials of the spherulites are mainly Ca-free silicates. To understand the formation mechanism of this construction of calcite crystals, biomimetic synthesis of similar spherulites have been carried out by using alginate and stevensite as structure directing agents. It is found that algi-nate is essential for growth of the spherulites, since the spherulites are developed only when they are embedded in the alginate network, a soft matter substrate. Stevensite also plays an important role of adjusting the hardness of the alginate substrate, offering a suitable network for the self-aggregation and self-orientation of the calcite nanocrystals. Possible inter-particle interactions or driving force of the particle aggregation and self-orientation are discussed.
Close

Details

Original languageEnglish
JournalCrystal Growth & Design
VolumeIn press
Early online date17 Apr 2020
DOIs
Publication statusE-pub ahead of print - 17 Apr 2020

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Crepe cake structured layered double hydroxide/sulfur/graphene as a pPositive electrode material for Li-S batteries

    Liu, S., Zhang, X., Wu, S., Chen, X., Yang, X., Yue, W., Lu, J. & Zhou, W., 15 Jun 2020, In : ACS Nano. Articles ASAP

    Research output: Contribution to journalArticle

  2. Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water

    Wang, Y., Liu, X., Han, X., Godin, R., Chen, J., Zhou, W., Jiang, C., Thompson, J., Bayazit, M., Shevlin, S., Durrant, J., Guo, Z. & Tang, J., 21 May 2020, In : Nature Communications. 11, 9 p., 2531.

    Research output: Contribution to journalArticle

  3. A highly efficient coordination polymer for selective trapping and sensing of perrhenate/pertechnetate

    Li, C-P., Zhou, H., Chen, J., Wang, J-J., Du, M. & Zhou, W., 1 Apr 2020, In : ACS Applied Materials & Interfaces. 12, 13, p. 15246-15254

    Research output: Contribution to journalArticle

  4. Effect of oxygen coordination environment of Ca-Mn oxides on catalytic performance of Pd supported catalysts for aerobic oxidation of 5-hydroxymethyl-2-furfural

    Yang, J., Yu, H., Wang, Y., Qi, F., Liu, H., Lou, L-L., Yu, K., Zhou, W. & Liu, S., 7 Dec 2019, In : Catalysis Science & Technology. 9, 23, p. 6659-6668

    Research output: Contribution to journalArticle

  5. Asymmetric oxygen vacancies: the intrinsic redox active sites in metal oxide catalysts

    Yu, K., Lou, L-L., Liu, S. & Zhou, W., 5 Dec 2019, In : Advanced Science . Early View, 8 p., 1901970.

    Research output: Contribution to journalArticle

Related by journal

  1. Reversible, two-step single-crystal to single-crystal phase transitions between desloratadine forms I, II, and III

    Srirambhatla, V. K., Guo, R., Dawson, D. M., Price, S. L. & Florence, A. J., 28 Jan 2020, In : Crystal Growth & Design. Articles ASAP, 11 p.

    Research output: Contribution to journalArticle

  2. Enhancement of electrical conductivity due to structural distortion from linear to nonlinear dicarboxylato-bridged Zn(II) 1D-coordination polymers

    Naskar, K., Sil, S., Sahu, N., Dutta, B., Slawin, A. M. Z., Ray, P. P. & Sinha, C., 1 May 2019, In : Crystal Growth & Design. 19, 5, p. 2632-2641 10 p.

    Research output: Contribution to journalArticle

  3. Evolution of anodic product from molybdenum metal in absolute ethanol and humidity sensing under ambient conditions

    Ni, C., Carolan, D., Hui, J., Rocks, C., Padmanaban, D., Ni, J., Xie, D., Fang, Z., Irvine, J., Maguire, P. & Mariotti, D., 4 Sep 2019, In : Crystal Growth & Design. 19, 9, p. 5249-5257 9 p.

    Research output: Contribution to journalArticle

ID: 267585673

Top