Preparation method and use of yttrium-doped bismuth stannate nanocrystallines
A technology of bismuth stannate and nanocrystals is applied in the field of inorganic nano-semiconductor material synthesis, which can solve the problem of high cost and achieve the effects of low cost, convenient mass production and reduced energy consumption.
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[0031] Example 1
[0032] Weigh 1.94028g bismuth nitrate (Bi(NO 3 ) 3 ?5H 2 O) was dissolved in 10 mL of 1M dilute nitric acid to obtain mixed solution A; 1.13896 g of sodium stannate (Na 2 SnO 6 ?4H 2 O) Dissolve in 10ml of secondary distilled water to obtain an aqueous solution of sodium stannate, transfer the aqueous solution of sodium stannate into mixed solution A to obtain mixed solution B, and adjust pH=12 with NaOH solution. The mixed solution B with pH=12 was transferred into a 50mL polytetrafluoroethylene-lined reaction kettle, and the temperature was kept constant at 180°C for 24h. The product was alternately centrifuged and washed with water and ethanol, and vacuum-dried at 60° C. for 12 h to obtain bismuth stannate nanocrystals.
[0033] Take 0.05g of the bismuth stannate nanocrystals prepared in this example and add it to a 100mL photocatalytic reactor containing a 10mg / L tetracycline aqueous solution, and stir at room temperature for 30 minutes in the dark...
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[0034] Example 2
[0035] Weigh 1.92087g of bismuth nitrate (Bi(NO 3 ) 3 ?5H 2 O) and 0.00766g yttrium nitrate (Y (NO 3 ) 3 ·6H 2 O) was dissolved in 10 mL of 1M dilute nitric acid to obtain mixed solution A; 1.12757 g of sodium stannate (Na 2 SnO 6 ?4H 2O) Dissolve in 10ml of secondary distilled water to obtain an aqueous solution of sodium stannate, transfer the aqueous solution of sodium stannate into the above mixed solution A to obtain a mixed solution B, and ultrasonically stir the mixed solution B until it becomes a milky white mixed solution , adjusted to pH=12 with NaOH solution. The mixed solution with pH=12 was transferred into a 50mL polytetrafluoroethylene-lined reaction kettle, and the temperature was kept constant at 180°C for 24h. The product was alternately centrifuged and washed with water and ethanol, and vacuum-dried at 60° C. for 12 h to obtain yttrium-doped bismuth stannate nanocrystals.
[0036] The yttrium-doped bismuth stannate nanocrystals p...
Example Embodiment
[0037] Example 3
[0038] Weigh 1.88207g of bismuth nitrate (Bi(NO 3 ) 3 ?5H 2 O) and 0.02298 g of yttrium nitrate (Y (NO 3 ) 3 ·6H 2 O) was dissolved in 10 mL of 1M dilute nitric acid to obtain mixed solution A; 1.10479 g of sodium stannate (Na 2 SnO 6 ?4H 2 O) Dissolve in 10ml of secondary distilled water to obtain an aqueous solution of sodium stannate, transfer the aqueous solution of sodium stannate into mixed solution A to obtain mixed solution B, and ultrasonically stir mixed solution B until it becomes a milky white mixed solution, Adjust to pH=12 with NaOH solution. The mixed solution with pH=12 was transferred into a 50mL polytetrafluoroethylene-lined reaction kettle, and the temperature was kept constant at 180°C for 24h. The product was alternately centrifuged and washed with water and ethanol, and vacuum-dried at 60° C. for 12 h to obtain yttrium-doped bismuth stannate nanocrystals.
[0039] The yttrium-doped bismuth stannate nanocrystals prepared in thi...
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