Synthesis of Hollow BiVO4 /Ag Composite Microspheres and Their Photocatalytic and Surface-Enhanced Raman Scattering Properties.Hollow BiVO4 microspheres are prepared in the presence of ethylenediaminetetraacetic acid (EDTA) through a hydrothermal method, and used as a template for the fabrication of Ag-nanoparticle-decorated BiVO4 (BiVO4 /Ag) composite microspheres. 
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