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Synthesis of Lanthanum Vanadate Nanopowders at Low Temperature Using the Ultrasonic Method
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Synthesis of Lanthanum Vanadate Nanopowders at Low Temperature Using the Ultrasonic Method

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Abstract:

Lanthanum vanadate (LaVO4) exhibits photoluminescence and energy conversion properties under light or electromagnetic irradiation, and has been applied in phosphors, scintillators, and photocatalysis, making it one of the smart photo-functional materials. Under the requirements of a low-carbon society and environmental conditions, low energy consumption material processes have become the focus of research. Lanthanum acetate [La(CH3COO)3] and ammonium metavanadate (NH4VO3) were used as precursor solutions. Under a fixed ultrasonic frequency of 35 kHz, lanthanum vanadate (LaVO4) nanoparticles were synthesized by varying the precursor solution temperature (26 °C and 50 °C), reaction time (30 min and 50 min), and intermittent irradiation conditions (5 s on / 55 s off). The crystalline structure of the powders was identified using X-ray diffraction (XRD), while the crystal morphology and particle size distribution were examined by transmission electron microscopy (TEM). The results show that this process can synthesize lanthanum vanadate (LaVO4) nanopowders under low-temperature and energy efficiency conditions, with rod-like morphologies and grain sizes of approximately 20–100 nm. This study also found that obtaining particles with a uniform and fine grain size is more difficult without the addition of coordination compounds and surfactants.

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Periodical:

Solid State Phenomena (Volume 394)

Pages:

3-7

DOI:

https://doi.org/10.4028/p-uTqpE5

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Online since:

June 2026

Authors:

Hao Long Chen*, Xun Ping Wang

Keywords:

Lanthanum Vanadate, Nano Powder, Synthesis, Ultrasonic

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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