Novel photocatalyst NiGa2O4/AQ/MoO3 as well as preparation method and application thereof
A photocatalyst, a new type of technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as slowing electron transport speed and affecting photocatalytic efficiency , to achieve the effect of improving electron transfer efficiency, enhancing photocatalytic activity and improving efficiency
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Embodiment 1
[0030] Embodiment 1 Novel photocatalyst NiGa 2 o 4 / AQ / MoO 3
[0031] (1) The preparation method is as follows
[0032] 1. Preparation of nano-NiGa 2 o 4
[0033] 0.37g nanometer Ga 2 o 3 Add it to 50mL of a solution containing 0.45g of nickel nitrate, adjust the pH of the resulting mixture to 12 with 1mol / L sodium hydroxide, and stir for 30min while adjusting. The sample was brought to room temperature to obtain a light blue precipitate, which was washed several times with deionized water. The obtained precipitate was dried at 80°C for 8 hours to obtain NiGa 2 o 4 Powder. Grind the powder finely, bake it in a muffle furnace at 500°C for 2 hours, take it out and grind it to get nano-NiGa 2 o 4 .
[0034] 2. Preparation of nano-MoO 3
[0035] 1g(NH 4 ) 6 Mo 7 o 24 4H 2 O dissolved in 36 mL 65% HNO 3 In, by volume ratio, (NH 4 ) 6 Mo 7 o 24 4H 2 O and HNO 3 The mixed solution: deionized water=1:5, deionized water was added, and after complete dissolut...
Embodiment 2
[0047] Embodiment 2 novel photocatalyst NiGa 2 o 4 / AQ / MoO 3 Application in photocatalytic conversion of nitrite and sulfite 2 o 4 / AQ / MoO 3 Add to 50mL of waste water containing nitrite and sulfite, wherein the concentration of nitrite is 10ppm, and the concentration of sulfite is 18.2ppm. Irradiate with a 500W xenon lamp, and the illumination time is 4.0h. The conversion rates of nitrite and sulfite were measured at 0.00h, 1.00h, 2.00h, 3.00h, and 4.00h of light respectively.
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