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Photocatalytic nanocomposite films of titanium dioxide (TiO 2 )/polyoxometalate, decatungstate (Na 4 W 10 O 32 , abb. W 10 O 32 ) were prepared via electrostatic layer-by-layer self-assembly method. Atomic force microscopy (AFM) observations and X-ray photoelectron spectroscopy (XPS) analyses show that the positive TiO 2 nanoparticles and W ...
We report layer-by-layer (LbL) assembly of TiO2 and H4SiW12O40 (SiW12) multilayer film on silicon wafers and glass slides for photocatalytic degradation of methyl orange (MO). The photocatalytic efficiency of the obtained multilayer film increases along with the decrease of pH and salt concentration of the incubation solution. The results show that MO can be almost removed in pH 2.0 solution without...
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