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Visible light-active TiO2–reduced graphene oxide photocatalysts were prepared using simple mechanical mixing of titanium dioxide with different amounts of rGO (0.1, 0.5, 1.0 and 2.0wt.%) in the presence of 1-butyl alcohol. Structures and morphologies of the samples were examined by means of FTIR/DRS, UV–vis/DR, XRD, SEM, TEM and Raman spectroscopy. The photocatalytic properties were checked on the...
Nanocrystalline TiO2 was prepared in the sol-gel method by hydrolysis of titanium (IV) isopropoxide (TIP) at the different pH: autogenic, pH=10 (with ammonia solution) and pH=3 (with acetic acid solution). The obtained materials were calcined at 400°C. Time Resolved Microwave Conductivity (TRMC) analyses showed, that the highest lifetime of charge-carriers was obtained for sample prepared at pH=10...
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