Preparation method of TiO2/InVO4 nanojunction composite material
A composite material and nano-junction technology, which is applied in the field of preparation of TiO2/InVO4 nano-junction composite materials, can solve the problem of low photocatalytic efficiency and so on.
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[0019] TiO 2 / InVO 4 The preparation method of nano junction composite material, comprises the following steps:
[0020] Step A: Add InVO with a particle size of 0.05 μm to 2 μm 4 The particles are added to the polymer TiO with a solid content of 1% to 5%. 2 sol, and make the molar ratio of In and Ti 1:50~1:10, then stir in a water bath at 50°C for 1h~10h, filter the precipitate, wash it with absolute ethanol for 3 times, and then dry it to obtain a powder. The powder was placed in a muffle furnace at 350°C for 2 hours to obtain TiO 2 Quantum dot modified InVO 4 Particles, TiO on the surface 2 The quantum dots are distributed in a discontinuous island shape.
[0021] Among them, the polymer type TiO 2 The preparation method of the sol is as follows: add butyl titanate to an aqueous ethanol solution containing hydrochloric acid at a pH of 1.5 to 5, wherein the molar ratio of butyl titanate to water is 1:4, mix and stir for 2 hours to obtain a polymerized Physical type T...
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