Loading...

Polyacids for producing colloidally stable amorphous calcium carbonate clusters in water

Jia, X ; Sharif University of Technology | 2022

85 Viewed
  1. Type of Document: Article
  2. DOI: 10.1002/app.51899
  3. Publisher: John Wiley and Sons Inc , 2022
  4. Abstract:
  5. As an important precursor of crystalline phases, amorphous calcium carbonate (ACC), especially ultrasmall ACC clusters, have been attracting great interest in fundamental research, materials chemistry, as well as industrial applications. However, it is still challenging to synthesize stable ACC clusters in water that can be isolated and concentrated without severe aggregation. Herein, we report a facile dialysis method for producing colloidally stable ACC clusters that are well dispersed in water with the protection of specific polycarboxylic acids, which could be also easily deprotected by small-molecule acids like sodium citrate. Inherent proto-calcite short-range order is found to be present in all the obtained ACC clusters. The present strategy not only allows for the preparation of monodisperse isolated ACC clusters in aqueous solution but also shows great potential in industrial uses like waste water treatment. © 2021 Wiley Periodicals LLC
  6. Keywords:
  7. Biopolymers ; Calcite ; Calcium carbonate ; Industrial research ; Industrial water treatment ; Nanocrystalline materials ; Nanocrystals ; Sodium compounds ; Sols ; Amorphous calcium carbonate ; Biopolymer and renewable polymer ; Crystalline phasis ; Dialysis method ; Fundamental research ; Material chemistry ; Polyacids ; Polycarboxylic acids ; Ultra-small ; Well-dispersed ; Wastewater treatment
  8. Source: Journal of Applied Polymer Science ; Volume 139, Issue 14 , 2022 ; 00218995 (ISSN)
  9. URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/app.51899