Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
Feature: The 55th Symposium on Basic Science of Ceramics: Notes
Synthesis and crystal structure of pyrochlore-type silver niobate and tantalate
Isuru WITHANAGENobuhiro KUMADATakahiro TAKEISayaka YANAGIDAYoshihiro KUROIWAChikako MORIYOSHI
Author information
JOURNALS FREE ACCESS

Volume 125 (2017) Issue 10 Pages 776-778

Details
Download PDF (1371K) Contact us
Abstract

Pyrochlore-type (K0.73H0.27)NbO3·1.72H2O and (K0.56H0.44)TaO3·1.14H2O were synthesized by a hydrothermal reaction. The K+ ions in these compounds were reacted with Ag+ ions in excess molten AgNO3 at 300°C. This reaction produced fluorite-type Ag0.41Nb0.59O1.68 and pyrochlore-type Ag0.93TaO2.97·0.94H2O. Their crystal structures were refined by the Rietveld method using synchrotron X-ray powder diffraction data. Only the pyrochlore-type Ag0.93TaO2.97·0.94H2O exhibited photocatalytic activity toward phenol degradation under UV light irradiation.

Information related to the author
© 2017 The Ceramic Society of Japan
Previous article Next article
feedback
Top