A method for preparing organic-inorganic hybrid hollow nanospheres by ultrasound
A nanosphere and inorganic technology, which is applied in the field of preparation of organic-inorganic hybrid hollow nanospheres, can solve the problems of unsatisfactory and prolonging the preparation time, and achieve the effects of short time-consuming, simple system and large output
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Embodiment 1
[0051] The raw materials are 3-methacryloyloxypropyltrimethoxysilane (TPM), isoamyl acetate, ammonia water and water, and the initiator is potassium persulfate. At room temperature, take 40 mL of pure water and adjust its pH value to 10 with ammonia water. Subsequently, 0.2 mL of TPM and 0.6 mL of isoamyl acetate were added to the above system, and ultrasonic (100 MHz) was performed for 15 min at room temperature. Afterwards, nitrogen was passed to exhaust oxygen for 30 minutes, and the temperature was raised to 70° C., and 10 mg of potassium persulfate was added to initiate polymerization, and the polymerization reaction continued for 12 hours. The obtained emulsion is centrifuged and washed three times with ethanol to obtain organic-inorganic hybrid hollow nanospheres.
[0052] The above-mentioned organic-inorganic hybrid hollow nanospheres were dispersed in ethanol to make a transmission electron microscope sample, and the morphology of the particles was observed. Such as...
Embodiment 2
[0055] The raw materials are 3-methacryloyloxypropyltrimethoxysilane (TPM), isoamyl acetate, ammonia water and water, and the initiator is potassium persulfate. At room temperature, take 60 mL of pure water and adjust its pH value to 9.4 with ammonia water. Subsequently, 0.2 mL of TPM and 0.6 mL of isoamyl acetate were added to the above system, and ultrasonic (100 MHz) was performed for 15 min at room temperature. Afterwards, nitrogen was passed to exhaust oxygen for 30 minutes, and the temperature was raised to 70° C., and 10 mg of potassium persulfate was added to initiate polymerization, and the polymerization reaction continued for 10 hours. The obtained emulsion is centrifuged and washed three times with ethanol to obtain organic-inorganic hybrid hollow nanospheres.
[0056] The above-mentioned organic-inorganic hybrid hollow nanospheres were dispersed in ethanol to make a transmission electron microscope sample, and the morphology of the particles was observed. and f...
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