Preparation method of g-C3N4-PANI composite photocatalytic material for degrading oxytetracycline waste water
A composite photocatalysis, g-c3n4-pani technology, applied in the field of composite photocatalytic material synthesis, can solve the problems of poor adsorption performance, small specific surface area, etc., and achieve the effect of good performance and light absorption performance
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Embodiment 1
[0019] Step S1: Add 512.9 μL of aniline to 100 mL of sulfuric acid solution with a molar concentration of 0.5 mol / L under ice bath conditions, and stir and mix to obtain solution A;
[0020] Step S2: Continue to add 2813μL of (NH) with a molar concentration of 2mol / L to the solution A obtained in step S1 under ice bath conditions at a rate of 3-5s per drop. 4 ) 2 S 2 O 8 , Continue to stir and react for 8h under ice bath conditions to obtain solution B;
[0021] Step S3: The solution B obtained in step S2 is suction filtered, washed with water and alcohol three times, and then placed in a vacuum drying oven at 40° C. for 24 hours and then ground to obtain a photocatalytic material, which is PANI.
Embodiment 2
[0023] Step S1: Add 2.0925g g-C 3 N 4 Add it to 100 mL of sulfuric acid solution with a molar concentration of 0.5 mol / L and ultrasonically mix to obtain solution A;
[0024] Step S2: Add 63.4 μL of aniline to the solution A obtained in step S1 under ice bath conditions, stir and mix to obtain solution B;
[0025] Step S3: Continue to add 350μL of (NH) with a molar concentration of 2mol / L to the solution B obtained in step S2 under ice bath conditions at a rate of 3-5s per drop. 4 ) 2 S 2 O 8 , Continue to stir and react for 8h under ice bath conditions to obtain solution C;
[0026] Step S4: The solution C obtained in step S3 is suction filtered, and then repeatedly washed with water and alcohol three times, and then placed in a vacuum drying oven at 40°C for 24 hours and then ground to obtain g-C 3 N 4 -PANI composite photocatalytic material, which is 3% PANI.
[0027] The degradation rate of this composite photocatalytic material to 5mg / L oxytetracycline wastewater under simulated s...
Embodiment 3
[0029] Step S1: Add 2.0925g g-C 3 N 4 Add it to 100 mL of sulfuric acid solution with a molar concentration of 0.5 mol / L and ultrasonically mix to obtain solution A;
[0030] Step S2: Add 107.9 μL of aniline to the solution A obtained in step S1 under ice bath conditions, stir and mix to obtain solution B;
[0031] Step S3: continue to add 590μL of (NH) with a molar concentration of 2mol / L to the solution B obtained in step S2 under ice bath conditions at a rate of 3-5s per drop. 4 ) 2 S 2 O 8 , Continue to stir and react for 8h under ice bath conditions to obtain solution C;
[0032] Step S4: The solution C obtained in step S3 is suction filtered, and then repeatedly washed with water and alcohol three times, and then placed in a vacuum drying oven at 40°C for 24 hours and then ground to obtain g-C 3 N 4 -PANI composite photocatalytic material, which is 5% PANI.
[0033] The degradation rate of 5mg / L oxytetracycline wastewater by the composite photocatalytic material under simulated s...
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