MFe-PBA precursor, photocatalyst and preparation method and application of MFe-PBA precursor and photocatalyst
A photocatalyst and precursor technology, applied in the field of nanomaterials and photocatalysis, can solve the problems of complex preparation process, high technical requirements for catalytic conditions, and expensive catalytic raw materials, and achieve simple processing technology, large industrialization potential, and simple and easy synthesis process control effect
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Embodiment 1
[0030] Example 1 Preparation and characterization of NiFe-300 photocatalyst
[0031] 1. Preparation steps:
[0032] 1) Potassium ferricyanide (solution A, the metal is expressed as Fe, 1 mmol is dissolved in 50 ml of water) and the transition metal salt nickel nitrate (solution B, the metal is expressed as Ni, 2 mmol is dissolved in 100 ml of water) are respectively made into solutions, and the solution is dissolved in 100 ml of water. A was dropped into B, and magnetically stirred in an oil bath at 40-80°C for 4-8 hours. The obtained precipitate was centrifuged with a centrifuge and washed with deionized water for several times. The centrifuged precipitate was placed in a vacuum oven and dried to obtain NiFe-PBA precursor;
[0033] 2) Spread the obtained precursor on a magnetic boat, put it into a tube furnace, and calcine it in the air at 350-700°C for 2-6h, and control the heating rate at 2-6°C / min to obtain a bimetallic mixed oxide NiFe-Cx (x is the calcination temperatu...
Embodiment 2
[0037] Example 2 Preparation and characterization of CuFe-400 photocatalyst
[0038] preparation:
[0039] 1) Potassium ferricyanide (solution A, the metal is expressed as Fe, 1 mmol is dissolved in 50 ml of water) and the transition metal salt copper sulfate (solution B, the metal is expressed as Cu, 2 mmol is dissolved in 100 ml of water) are respectively made into solutions, and the solution is mixed. A was dropped into B, and magnetically stirred in an oil bath at 40-80°C for 4-8 hours. The obtained precipitate was centrifuged with a centrifuge and washed with deionized water for several times. The centrifuged precipitate was placed in a vacuum oven and dried to obtain CuFe-PBA precursor;
[0040] 2) Spread the obtained precursor on a magnetic boat, put it into a tube furnace, and calcine it in the air at 350-700°C for 2-6h, and control the heating rate at 2-6°C / min to obtain a bimetallic mixed oxide CuFe-Cx (x is the calcination temperature);
[0041] 3) The bimetallic m...
Embodiment 3
[0043] Example 3 Preparation and characterization of CoFe-400 photocatalyst
[0044] preparation:
[0045] 1) Potassium ferricyanide (solution A, the metal is expressed as Fe, 1 mmol is dissolved in 50 ml of water) and the transition metal salt cobalt chloride (solution B, the metal is expressed as Co, 2 mmol is dissolved in 100 ml of water) are respectively made into solutions, and the Solution A was dropped into B, and magnetically stirred in an oil bath at 40-80°C for 4-8 hours. The obtained precipitate was centrifuged with a centrifuge and washed with deionized water for several times. The centrifuged precipitate was placed in a vacuum oven and dried. Obtain CoFe-PBA precursor;
[0046] 2) Spread the obtained precursor on a magnetic boat, put it into a tube furnace, and calcine it in the air at 350-700°C for 2-6h, and control the heating rate at 2-6°C / min to obtain a bimetallic mixed oxide CoFe-Cx (x is the calcination temperature);
[0047] 3) In a tube furnace, the bi...
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