Method of using silver ferrite nanomaterial to catalyze persulfate to treat organic wastewater
A technology for organic wastewater and nanomaterials, applied in chemical instruments and methods, oxidized water/sewage treatment, water/sewage treatment, etc. The effect of stability, efficient degradation, and simple operation
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Embodiment 1
[0031] AgFeO 2 material preparation
[0032] (1) Accurately weigh 16.16g Fe(NO 3 ) 3 9H 2 O and 6.8g AgNO 3 , each added to 50mL of distilled water, prepared to obtain a concentration of 0.8mol / L Fe(NO 3 ) 3 9H 2 O and 0.8mol / L AgNO 3 solution, the AgNO 3 solution dropwise to Fe(NO 3 ) 3 in solution;
[0033] (2) Use a NaOH solution with a concentration of 6 mol / L to adjust the pH=10, stir for 30 minutes, and after standing still, wash the precipitate with water, dry and grind it to obtain a solid powder;
[0034] (3) Dry the solid powder obtained in step (2) at 100°C for 3 hours to obtain AgFeO 2 nanomaterials;
[0035] AgFeO 2 Material application
[0036] (4) AgFeO 2 Nanomaterials and potassium peroxymonosulfonate (PS) are mixed into organic wastewater, and the concentration of potassium peroxymonosulfonate in organic wastewater is 0.2g / L, AgFeO 2The concentration of nanomaterials in organic wastewater is 1g / L, the pollutant in organic wastewater is rhodami...
Embodiment 2
[0038] AgFeO 2 material preparation
[0039] (1) Accurately weigh 10.1g Fe(NO 3 ) 3 9H 2 O and 4.25g AgNO 3 , each added to 50mL of distilled water, prepared to obtain a concentration of 0.5mol / L Fe(NO 3 ) 3 9H 2 O and 0.5mol / L AgNO 3 solution, the AgNO 3 solution dropwise to Fe(NO 3 ) 3 in solution;
[0040] (2) Use a NaOH solution with a concentration of 7 mol / L to adjust the pH to 10.5, stir for 1 hour, and after standing still, wash the precipitate with water, dry and grind it to obtain a solid powder;
[0041] (3) Dry the solid powder at 100°C for 3 hours to obtain AgFeO 2 nanomaterials;
[0042] AgFeO 2 Material application
[0043] (4) AgFeO 2 Nanomaterials and potassium peroxymonosulfonate are mixed into organic wastewater, and the concentration of potassium peroxymonosulfonate in organic wastewater is 0.3g / L, AgFeO 2 The concentration of nanomaterials in organic wastewater is 0.5g / L, the pollutant in organic wastewater is rhodamine B (RhB), the initia...
Embodiment 3
[0045] AgFeO 2 material preparation
[0046] (1) Accurately weigh 12.12g Fe(NO 3 ) 3 9H 2 O and 5.1 g AgNO 3 , each added to 50mL of distilled water, prepared to obtain a concentration of 0.6mol / L Fe(NO 3 ) 3 9H 2 O and 0.6mol / L AgNO 3 solution, the AgNO 3 solution dropwise to Fe(NO 3 ) 3 in solution;
[0047] (2) Use a NaOH solution with a concentration of 8 mol / L to adjust the pH to 12, stir for 1.5 hours, and after standing still, wash the precipitate with water, dry and grind it to obtain a solid powder;
[0048] (3) Dry the solid powder at 100°C for 3 hours to obtain AgFeO 2 Nanomaterials; AgFeO 2 Material application
[0049] (4) AgFeO 2 Nanomaterials and potassium peroxymonosulfonate are mixed into organic wastewater, and the concentration of potassium peroxymonosulfonate in organic wastewater is 0.2g / L, AgFeO 2 The concentration of nanomaterials in organic wastewater is 2g / L, the pollutant in organic wastewater is rhodamine B (RhB), the initial concentr...
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