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Low‐Temperature Synthesis of YVO 4 Nanoparticles and their Photocatalytic Activity
Author(s) -
Liu Ye,
Ma Junfeng,
Dai Changhong,
Song Zuwei,
Sun Yong,
Fang Jingrui,
Gao Chang,
Zhao Jingang
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03277.x
Subject(s) - photocatalysis , materials science , transmission electron microscopy , nanoparticle , crystallization , chemical engineering , yttrium , calcination , particle size , absorption spectroscopy , absorption (acoustics) , nanotechnology , chemistry , optics , oxide , metallurgy , composite material , catalysis , organic chemistry , physics , engineering
Yttrium orthovanadate (YVO 4 ) nanoparticles with nearly spherical shape were successfully synthesized via a molten salt method at a low temperature of 200°C. The as‐prepared powders were characterized by X‐ray diffraction, transmission electron microscopy and UV‐Vis spectroscopy, respectively. The results show that increasing salt amount and/or elevating calcining temperature can greatly promote the crystallization and growth of YVO 4 phase. UV‐Vis absorption spectra suggested that YVO 4 nanoparticles with the smaller particle size have the stronger UV absorption, and the sequent photocatalytic degradation data also confirmed their higher photocatalytic activity.