ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Influence of synthesis conditions over simonkolleite/ZnO precipitation

Simon Cousy, Nataliia Gorodylova, Ladislav Svoboda, and Jiri Zelenka

University of Pardubice, Pardubice, Czech Republic

 

E-mail: simon.cousy@gmail.com

Abstract: Simonkolleite is a zinc-layered hydroxide salt with the formula Zn5(OH)8Cl2·H2O. It has a platelet morphology and can be used for many applications, owing to both its layered structure and its nature as a hydroxide salt. It can be prepared via a simple precipitation from ZnCl2 and NaOH in water thermostated at 50 °C. Depending on the synthesis conditions, we could obtain different sizes and a hybrid containing parts of ZnO. We studied the influence of the OH:Zn molar ratio, the addition order, and the maturation time after the reaction was completed. With the support of pH profiles, kinetic studies, and thermodynamic equilibrium data, we were able to propose a global synthesis mechanism explaining the influence of those three parameters and identify the range of conditions in which simonkolleite can be formed. Depending on the desired application, we were able to synthesize bigger or smaller layered crystals of simonkolleite, in the presence of absence of ZnO.

Keywords: Simonkolleite; Zinc hydroxide chloride; Zinc oxide; Precipitation; Zinc-layered hydroxide salt

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-017-0226-4

 

Chemical Papers 71 (12) 2325–2334 (2017)

Thursday, March 28, 2024

IMPACT FACTOR 2021
2.146
SCImago Journal Rank 2021
0.365
SEARCH
Advanced
VOLUMES
European Symposium on Analytical Spectrometry ESAS 2022
© 2024 Chemical Papers