Synthesis of Nanoparticulate In-Doped BiVO4 for Enhanced Visible-Light Photocatalytic Degradation of Dye

Indium (2.9, 3.5, and 4.9 at. %)-doped and pristine monoclinic BiVO4 nanoparticles were synthesized by hydrothermal method. They were characterized by high-resolution scanning electron, field emission scanning electron, transmission electron and high-resolution transmission electron microscopies, powder X-ray and selected-area electron diffractometries, energy-dispersive X-ray, Raman, UV-visible diffuse reflectance, photoluminescence, and solid-state impedance spectroscopies. The band gap and near-band-gap emission of 4.9% In-doped BiVO4 nanoparticles are larger than those of the rest of the nanomaterials. The charge-transfer resistance of 4.9% In-doped BiVO4 is the least. In-doping enhances visible-light photocatalytic activity.