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Synthesis of Bi–Fe–Sb–O Pyrochlore Nanoparticles with Visible‐Light Photocatalytic Activity
Author(s) -
Egorysheva Anna V.,
Gajtko Olga M.,
Rudnev Pavel O.,
Ellert Olga G.,
Ivanov Vladimir K.
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201501159
Subject(s) - pyrochlore , selected area diffraction , chemistry , high resolution transmission electron microscopy , nanoparticle , photocatalysis , hydrothermal circulation , chemical engineering , phase (matter) , agglomerate , transmission electron microscopy , nanotechnology , nuclear chemistry , catalysis , materials science , organic chemistry , engineering
A method has been developed for the preparation of Bi–Fe–Sb–O pyrochlore nanoparticles by microwave hydrothermal treatment. Experiments revealed that the preparation procedure for the precursors is an important factor that affects the phase composition of the product. The morphology of the pyrochlore particles was investigated by SEM, HRTEM, and selected‐area electron diffraction (SAED) methods. The samples consist of numerous spherical agglomerates from 100 to 200 nm formed from 20 nm mutually oriented nanocrystallites. A mechanism for the formation of the particles is proposed, and the magnetic and photocatalytic properties of the Bi–Fe–Sb–O pyrochlore nanocrystallites are reported.