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Gd-doped porous β-Bi2O3 microspheres with different Gd concentrations (at.%=0, 1, 2, 3 and 4%) were prepared by a simple hydrothermal synthesis method and characterized by X-ray powder diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, the Brunauer–Emmett–Teller surface area, UV–vis adsorption spectroscopy and photoluminescence measurements. Two types of dyes, anionic methyl...
Two kinds of vanadium-doped TiO 2 powders photocatalysts were prepared by sol–gel method in even doping and uneven doping modes, and were characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV–vis diffuse reflectance spectroscopy (DRS). The photocatalytic activity of TiO 2 photocatalysts doped by vanadium evenly...
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