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Au-M x O y (M?Ag, Cu, Ni) nanoparticles supported on TiO 2 -P25 were prepared by the deposition-precipitation method and were evaluated for the photocatalytic water splitting reaction for hydrogen production, using a mixture of water-methanol (1:1). The combinations of Au-Cu 2 O/TiO 2 and Au-NiO/TiO 2 effectively increased the hydrogen production (2064...
Na 2 Ti 6 O 13 and Zr/Na 2 Ti 6 O 13 prepared by the sol–gel method and impregnated with different amounts of RuO 2 (0.1–10wt%) were evaluated as photocatalysts for water splitting. The calcined materials at 800°C were characterized by X-ray diffraction (XRD) analysis, Raman spectroscopy, UV–vis spectroscopy with diffuse reflectance spectroscopy...
TiO 2 –ZnO mixed oxides (1.0, 3.0, 5.0 and 10.0wt.% Zn) photoconductors were prepared by the sol–gel method and used for the H 2 production from water splitting. The solids were characterized by nitrogen physisorption, XRD, RAMAN, EDS, UV–Vis and XPS spectroscopy. High specific surface areas (85–159m 2 /g) were obtained in all the mixed oxides compared to the bare TiO 2...
Sodium tantalates NaTaO 3 and La:NaTaO 3 prepared by the sol–gel method and impregnated with triruthenium dodecarbonyl were studied as photocatalysts for water splitting. X-ray diffraction of the samples showed perovskite-type crystalline structure. Small particulate solids (<100nm) were observed by SEM. Well dispersed RuO 2 particles (<6nm) on the surface of the tantalates...
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