Preparation method of nanoparticles capable of being heated and measuring temperature
A technology of nanoparticles and gold nanoparticles, which is applied in the field of preparation of dual-functional nanoparticles of heating and temperature measurement, to achieve the effects of good dispersion, convenient and easy-to-obtain raw materials, and simple experimental equipment
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Embodiment 1
[0027] A preparation method for heating and measuring dual-functional nanoparticles, characterized in that: comprising the following steps:
[0028] 1) Preparation of photothermal conversion heating silica / gold particles:
[0029] 1.1) Preparation of silica core particles: Add absolute ethanol, ammonia water with a volume concentration of 10% and ethyl orthosilicate to the reaction vessel according to the volume ratio of 10:1:0.44, and mix and stir for 8 hours to obtain the silica core particles. Silicon core particles;
[0030] 1.2) Amination modification of silica core particles: After the silica core particles obtained in step 1.1) are centrifuged and washed 3 times with absolute ethanol, they are dispersed in an equal volume of absolute ethanol, and then the silica core particles are The particle solution and (3-aminopropyl)trimethoxysilane were mixed according to the volume ratio of 1250:1, and kept stirring for 1h, then the mixed solution was placed in a water bath at 7...
Embodiment 2
[0043] A preparation method for heating and measuring dual-functional nanoparticles, characterized in that: comprising the following steps:
[0044] 1) Preparation of photothermal conversion heating silica / gold particles:
[0045] 1.1) Preparation of silica core particles: add absolute ethanol, ammonia water with a volume concentration of 10% and ethyl orthosilicate to the reaction vessel at a volume ratio of 10:1:0.44, mix and stir for 8 hours to obtain di Silica core particles;
[0046] 1.2) Amination modification of silica core particles: After the silica core particles obtained in step 1.1) are centrifuged and washed 3 times with absolute ethanol, they are dispersed in an equal volume of absolute ethanol, and then the silica core particles are The particle solution and (3-aminopropyl)trimethoxysilane were mixed according to the volume ratio of 1250:1, and kept stirring for 1h, then the mixed solution was placed in a water bath at 70°C for 2h, and finally washed with absol...
Embodiment 3
[0056] A preparation method for heating and measuring dual-functional nanoparticles, characterized in that: comprising the following steps:
[0057] 1) Preparation of photothermal conversion heating silica / gold particles:
[0058] 1.1) Preparation of silica core particles: add absolute ethanol, ammonia water with a volume concentration of 10% and ethyl orthosilicate to the reaction vessel at a volume ratio of 10:1:0.44, mix and stir for 8 hours to obtain di Silica core particles;
[0059] 1.2) Amination modification of silica core particles: After the silica core particles obtained in step 1.1) are centrifuged and washed 3 times with absolute ethanol, they are dispersed in an equal volume of absolute ethanol, and then the silica core particles are The particle solution and (3-aminopropyl)trimethoxysilane were mixed according to the volume ratio of 1250:1, and kept stirring for 1h, then the mixed solution was placed in a water bath at 70°C for 2h, and finally washed with absol...
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