Preparation method and application of photocatalysis nanometer material for degrading TC (tetracycline)
A technology of nanomaterials and catalytic materials, applied in the field of one-step hydrothermal Ag+ doped SrTiO3 nanomaterials and its preparation, can solve the problems of interfering with the endocrine of aquatic species, discontinuity of wastewater discharge, refractory antibiotic degradation, etc., and achieve low cost , reduce energy consumption, and facilitate mass production
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Embodiment 1
[0027] A kind of SrTiO prepared by hydrothermal method 3 Spherical nanomaterials are carried out as follows:
[0028] A. Dissolve 1.26g of citric acid in 15mL of absolute ethanol;
[0029] B, in step A solution, add dropwise the solution containing 1.058g Sr(NO 3 ) 2 15mL solution, then dropwise added 1.5mL isopropyl titanate, stirred to mix evenly to form a white solution;
[0030] C, drip NaOH solution in above-mentioned mixed solution, adjust pH;
[0031] D. Transfer the solution to a 100mL polytetrafluoroethylene liner, react at 150°C for 36 hours, and then wash three times with glacial acetic acid, absolute ethanol, and deionized water;
[0032] E. Dry the centrifuged product in an oven at 60-80°C for 12 hours.
[0033] SrTiO prepared by the present invention 3 The degradation rate of nanomaterials to tetracycline is 9.09% when the xenon lamp is irradiated for 120 minutes.
Embodiment 2
[0035] A kind of Ag-SrTiO prepared by hydrothermal method 3 Spherical nanomaterials are carried out as follows:
[0036] A. Dissolve 1.26g of citric acid in 15mL of absolute ethanol;
[0037] B, in step A solution, add dropwise the solution containing 1.058g Sr(NO 3 ) 2 15mL solution, then dropwise added 1.5mL isopropyl titanate, stirred to mix evenly to form a white solution;
[0038] C, add dropwise to the white solution that contains 0.02497g AgNO 3 15mL solution;
[0039] D, drop NaOH solution in above-mentioned mixed solution, adjust pH;
[0040] E. Transfer the solution to a 100mL polytetrafluoroethylene liner, react at 150°C for 36 hours, and then wash three times with glacial acetic acid, absolute ethanol, and deionized water;
[0041] F. Dry the centrifuged product in an oven at 60-80°C for 12 hours.
[0042] Ag-SrTiO prepared by the present invention 3 Nanomaterials (S3), the degradation rate of tetracycline can reach 79.63% when illuminated by xenon light fo...
Embodiment 3
[0044] A. Dissolve 1.26g of citric acid in 15mL of absolute ethanol;
[0045] B, in step A solution, add dropwise the solution containing 1.058g Sr(NO 3 ) 2 15mL solution, then dropwise added 1.5mL isopropyl titanate, stirred to mix evenly to form a white solution;
[0046] C, add dropwise to the white solution that contains 0.0125g AgNO in step B 3 15mL solution;
[0047] D, drop NaOH solution in above-mentioned mixed solution, adjust pH;
[0048]E. Transfer the solution to a 100mL polytetrafluoroethylene liner, react at 150°C for 36 hours, and then wash three times with glacial acetic acid, absolute ethanol, and deionized water;
[0049] F. Dry the centrifuged product in an oven at 60-80°C for 12 hours.
[0050] Ag-SrTiO prepared by the present invention 3 Nanomaterials (S1).
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