Low-Temperature Synthesis of YVO4 Nanoparticles and their Photocatalytic Activity |
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| Authors: | Ye Liu Junfeng Ma Changhong Dai Zuwei Song Yong Sun Jingrui Fang Chang Gao Jingang Zhao |
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| Affiliation: | State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100024, China;
Institute of Environment and Municipal Engineering, Qingdao Technological University, Qingdao 266033, China |
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| Abstract: | Yttrium orthovanadate (YVO4) 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 YVO4 phase. UV-Vis absorption spectra suggested that YVO4 nanoparticles with the smaller particle size have the stronger UV absorption, and the sequent photocatalytic degradation data also confirmed their higher photocatalytic activity. |
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