Magnetically-separatable ferriferrous oxide/silver chloride photocatalyst and preparation method thereof

[0032] A preparation method of ferric oxide / silver chloride photocatalyst with magnetic separation, comprising the following steps:

[0033] 1) Weigh 2.982g FeCl 2 4H 2 O was dissolved in 100mL deionized water, and 8.150g FeCl was weighed 3 ·6H 2 O was dissolved in 100mL deionized water, and 4.247g AgNO was weighed 3 Dissolve in 250mL deionized water to prepare a molar concentration of 0.3mol / L (48.66g / L) ferric chloride solution, 0.15mol / L (19.0g / L) ferrous chloride solution and 0.1mol / L ( 16.98g / L) silver nitrate solution, standby;

[0034] 2) Weigh 2mL of ferric chloride solution and 4mL of ferrous chloride solution and place them at a constant temperature of 70°C to mix and stir evenly; slowly add 0.1mol / L (4g / L) sodium hydroxide aqueous solution dropwise to adjust the pH to 6.5, And standing and aging at a constant temperature of 70°C for 1 hour to obtain a reaction mixture;

[0035] 3) Slowly add 120mL0.1mol / L (16.98g / L) silver nitrate solution dropwise to the reac...

[0038] A preparation method of ferric oxide / silver chloride photocatalyst with magnetic separation, comprising the following steps:

[0039] 1) Dissolve ferric chloride, ferrous chloride and silver nitrate in water respectively to prepare ferric chloride solution with a molar concentration of 0.3mol / L (48.66g / L), 0.15mol / L (19.0g / L) ferrous chloride solution and 0.1mol / L (16.98g / L) silver nitrate solution, standby;

[0040] 2) Weigh 2mL of ferric chloride solution and 4mL of ferrous chloride solution and place them at a constant temperature of 65°C to mix and stir evenly; slowly add 0.1mol / L (4g / L) sodium hydroxide aqueous solution dropwise to adjust the pH to 6.5, And standing and aging at a constant temperature of 65°C for 2 hours to obtain a reaction mixture;

[0041] 3) Slowly add 30mL0.1mol / L (16.98g / L) silver nitrate solution dropwise to the reaction mixture obtained in step 2), in the solution, Ag + : Cl - The content ratio is 1:1, fully stirred, and kept in the dark...

[0043] A preparation method of ferric oxide / silver chloride photocatalyst with magnetic separation, comprising the following steps:

[0044] 1) Ferric chloride, ferrous chloride, and silver nitrate were respectively dissolved in water to prepare a ferric chloride solution with a molar concentration of 0.3mol / L (48.66g / L), and a ferric chloride solution with a molar concentration of 0.15mol / L (19.0g / L). Ferrous chloride solution and 0.1mol / L (16.98g / L) silver nitrate solution, standby;

[0045] 2) Weigh 2mL of ferric chloride solution and 4mL of ferrous chloride solution and place them at a constant temperature of 75°C to mix and stir evenly; slowly add 0.1mol / L (4g / L) sodium hydroxide aqueous solution dropwise to adjust the pH to 7.0, And standing and aging at a constant temperature of 75°C for 2 hours to obtain a reaction mixture;

[0046] 3) Slowly add 60mL0.1mol / L (16.98g / L) silver nitrate solution dropwise to the reaction mixture obtained in step 2), in the solution, Ag ...