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Various loading amount of La-CuO/TiO2 were synthesized via a one step sol-gel process. The crystal structure and chemical properties were characterized using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). XRD analysis revealed that two characteristic peaks at 35.54° and 38.76° according to cubic CuO were observed in the X-ray diffraction patterns of La-CuO/TiO2. Ti4+, Olat into...
The rutile TiO2, La/rutile TiO2 and Y/rutile TiO2 were synthesized by one-step method, and the densities of states were investigated by ab initio method. Firstly, the result of ab initio calculation showed that the band gap of La/rutile TiO2 is less than that of Y/rutile TiO2 and rutile TiO2, and the crystal lattice energy of rare earths (La, Y)/rutile TiO2 are similar to each other. Secondly, the...
Rare earth (RE) (La3+, Ce4+, Pr3+, Nd3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, Er3+, Tm3+ and Y3+) doped rutile phase TiO2 were prepared by low temperature one step synthesis and used as photocatalyst. The RE doped rutile phase TiO2 were characterized by X-ray diffraction (XRD), Particle Size, zeta potential, UV-visible spectroscopy, fluorescence spectrum. The results show that the RE have been doped into...
Bi25FeO40 powders have successfully been synthesized by simple hydrothermal method. The effect of the concentration of mineralizer and stoichiometry on the prepared samples was investigated. With the UV-Vis spectra, Bi25FeO40 powders have a broad absorption band in the range of 400-600 nm and a good visible-light-response ability. Photo-catalytic activity of Bi25FeO40 powders was evaluated by the...
A novel photocatalyst bismuth titanate mixed oxide (BTMO) was prepared by the solvent thermal synthesis method. The structure and morphology of BTMO were characterized by powder X-ray diffraction and scan electron microscope, respectively. Ultraviolet and visible diffuse reflection spectra were measured to account for the photoabsorption properties of BTMO. The tests of photocatalytic activity of...
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