Supercritical hydrothermal synthesis of zirconia nanoparticles from zirconium basic carbonate

Zirconia nanoparticles were synthesized by using the supercritical hydrothermal method from zirconium basic carbonate, which is insoluble in water at ambient temperature. The diameters of these nanoparticles were 10–20 nm. They contained both tetragonal and monoclinic phases. A long treatment in sup...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the Ceramic Society of Japan 2022/11/01, Vol.130(11), pp.861-866
Main Authors: Itagaki, Yoji, Takemoto, Masanori, Murata, Hidenobu, Kanzawa, Tsuneki, Tokudome, Yasuaki, Nakahira, Atsushi
Format: Article
Language:eng ; jpn
Subjects:
Ambient temperature
Carbon dioxide
Fine ceramics
Nano-powder
Nanoparticles
Phase transitions
Wastewater treatment
Zirconium dioxide
ZrO2
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Zirconia nanoparticles were synthesized by using the supercritical hydrothermal method from zirconium basic carbonate, which is insoluble in water at ambient temperature. The diameters of these nanoparticles were 10–20 nm. They contained both tetragonal and monoclinic phases. A long treatment in supercritical water induced the phase transition from the tetragonal phase to the monoclinic phase with the desorption of carbonate ions. These results indicated that the carbonate ions absorbed on the surface works as a stabilizer of the unstable tetragonal phase. The process developed here allows us to bypass wastewater treatment along with the product refining because byproducts are only water and carbon dioxide.
ISSN:1882-0743
1348-6535
DOI:10.2109/jcersj2.22083