Composite magnetic visible light photocatalyst silver-silver halide-bismuth oxyhalide-cobalt ferrite and preparation method thereof
A composite magnetic and bismuth oxyhalide technology, applied in the field of environmental pollution prevention and control, can solve the problems of low mercury removal efficiency from flue gas, weak catalytic activity, long reaction time, etc. The effect of mercury removal cost
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Embodiment 1
[0043] A composite magnetic visible light catalyst silver-silver halide-bismuth oxyhalide-cobalt ferrite, composed of Ag, AgCl, BiOCl and CoFe 2 o 4 Composition, CoFe 2 o 4 , the weight ratio of AgCl and BiOCl is:
[0044] CoFe 2 o 4 : AgCl: BiOCl=1:1:1, the weight ratio of Ag to AgCl is 0.1%~2%.
[0045] The preparation method of the above composite magnetic visible light catalyst silver-silver halide-bismuth oxyhalide-cobalt ferrite, which includes the following process steps:
[0046] 1. Preparation of magnetic microparticles CoFe 2 o 4
[0047] (1), 0.042 mol of Co (NO 3 ) 2 ·6H 2 O and 0.084mol Fe (NO 3 ) 3 9H 2 O was dissolved in 100mL of deionized water and stirred uniformly to obtain a mixed solution A of cobalt nitrate and ferric nitrate;
[0048] (2) Dissolve 0.34 mol of sodium hydroxide in 100 mL of deionized water to obtain solution B;
[0049] (3) Slowly add solution B to solution A to adjust the pH value of solution A, so that the pH value of the ...
Embodiment 2
[0063] A composite magnetic visible light catalyst silver-silver halide-bismuth oxyhalide-cobalt ferrite, composed of Ag, AgCl, BiOCl and CoFe 2 o 4 Composition, CoFe 2 o 4, the weight ratio of AgCl and BiOCl is:
[0064] CoFe 2 o 4 : AgCl: BiOCl=1:5:10, the weight ratio of Ag to AgCl is 2%~5%.
[0065] The preparation method of the above composite magnetic visible light catalyst silver-silver halide-bismuth oxyhalide-cobalt ferrite, which includes the following process steps:
[0066] 1. Preparation of magnetic microparticles CoFe 2 o 4
[0067] (1), 0.042 mol of Co(NO 3 ) 2 ·6H 2 O and 0.084 mol of Fe(NO 3 ) 3 9H 2 O was dissolved in 100mL of deionized water and stirred uniformly to obtain a mixed solution A of cobalt nitrate and ferric nitrate;
[0068] (2) Dissolve 0.34 mol of sodium hydroxide in 100 mL of deionized water to obtain solution B;
[0069] (3) Slowly add solution B to solution A to adjust the pH value of solution A, so that the pH value of the ...
Embodiment 3
[0083] A composite magnetic visible light catalyst silver-silver halide-bismuth oxyhalide-cobalt ferrite, composed of Ag, AgCl, BiOCl and CoFe 2 o 4 Composition, CoFe 2 o 4 , the weight ratio of AgCl and BiOCl is:
[0084] CoFe 2 o 4 :AgCl:BiOCl=1:1:7, the weight ratio of Ag to AgCl is 2%~3%.
[0085] The preparation method of the above composite magnetic visible light catalyst silver-silver halide-bismuth oxyhalide-cobalt ferrite, which includes the following process steps:
[0086] 1. Preparation of magnetic microparticles CoFe 2 o 4
[0087] (1), 0.042 mol of Co (NO 3 ) 2 ·6H 2 O and 0.084mol Fe (NO 3 ) 3 9H 2 O was dissolved in 100mL of deionized water and stirred uniformly to obtain a mixed solution A of cobalt nitrate and ferric nitrate;
[0088] (2) Dissolve 0.34 mol of sodium hydroxide in 100 mL of deionized water to obtain solution B;
[0089] (3) Slowly add solution B to solution A to adjust the pH value of solution A, so that the pH value of the solu...
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