Self-assembly synthetic method of single-layer nanometer TiO2@yeast carbon spheres, and applications thereof
A synthesis method and self-assembly technology, applied in chemical instruments and methods, chemical/physical processes, water treatment of special compounds, etc., can solve the problems of poor reproducibility and limited stability, and achieve strong photocatalytic, Densely arranged efficient effect
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Embodiment 1
[0034] Prepare KCl containing 0.1mol / L, CaCl 0.1mmol / L 2 and 0.1mmol / L MnCl 2And some 0.1mol / L phosphate buffer solution with pH7. Add 10mg of Con A to 10ml of the above solution and mix, stir and activate at 37°C for 12h to obtain an activated PBS buffer solution of Con A.
[0035] Another 3g nanometer TiO 2 Put it into a mixture of ammonia water with a mass fraction of 26%, hydrogen peroxide with a mass fraction of 30% and distilled water for ultrasonic cleaning, centrifuge and dry to obtain clean nano-TiO 2 ; The cleaned nano-TiO 2 Put it into a beaker containing 2.5% glutaraldehyde and stir, mix well, and let it stand at room temperature for 24h to obtain the modified TiO 2 Nanoparticles.
[0036] Then the modified TiO was sequentially treated with PBS, distilled water and ethanol 2 Nanoparticles are cleaned and dried to obtain modified nano-TiO 2 .
[0037] 3g modified nano-TiO 2 Add the above-mentioned activated Con A to the PBS buffer solution, mix, and let it ...
Embodiment 2
[0049] Prepare KCl containing 0.1mol / L, CaCl 0.1mmol / L 2 and 0.1mmol / L MnCl 2 , and a number of 0.1mol / L phosphate buffer solution with pH7. Add 10 mg of Con A to 10 ml of the above solution and mix, stir and activate at 37° C. for 9 h to obtain an activated PBS buffer solution of Con A.
[0050] Another 2g nanometer TiO 2 Put it into a mixture of ammonia water with a mass fraction of 26%, hydrogen peroxide with a mass fraction of 30% and distilled water for ultrasonic cleaning, centrifuge and dry to obtain clean nano-TiO 2 .
[0051] The cleaned nano-TiO 2 Put it into a beaker containing 2.5% glutaraldehyde and stir, mix well, and let it stand at room temperature for 18h to obtain the modified TiO 2 Nanoparticles.
[0052] Then the modified TiO was sequentially treated with PBS, distilled water and ethanol 2 Nanoparticles are cleaned and dried to obtain modified nano-TiO 2 .
[0053] 2g modified nano-TiO 2 , Add the above-mentioned PBS buffer solution containing act...
Embodiment 3
[0059] Prepare KCl containing 0.1mol / L, CaCl 0.1mmol / L 2 , 0.1mmol / L MnCl 2 , and a number of 0.1mol / L phosphate buffered saline (PBS) at pH7. Add 10mg of Con A to 10ml of the above solution and mix, stir and activate at 37°C for 6h to obtain the activated PBS buffer solution of Con A.
[0060] Another 1g nano-TiO 2 Put it into a mixture of ammonia water with a mass fraction of 26%, hydrogen peroxide with a mass fraction of 30% and distilled water for ultrasonic cleaning, centrifuge and dry to obtain clean nano-TiO 2 ; The cleaned nano-TiO 2 Put it into a beaker containing 2.5% glutaraldehyde and stir, mix well, and let it stand at room temperature for 12h to obtain the modified TiO 2 Nanoparticles.
[0061] Then the modified TiO was sequentially treated with PBS, distilled water and ethanol 2 Nanoparticles are cleaned and dried to obtain modified nano-TiO 2 .
[0062] 1g modified nano-TiO 2 , Add the above-mentioned PBS buffer solution containing activated Con A, mix...
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