Multifunctional nano material in metal organic framework mesoporous structure and preparation method thereof
A metal-organic framework and mesoporous structure technology, applied in the field of preparation of nanocomposite materials, can solve the problems of differential thermal stability and chemical stability, and achieve high stability, simple and easy preparation process, easy production and promotion. Effect
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Embodiment ( 1
[0022] (1) Synthesis of monodisperse magnetic colloid clusters by high temperature pyrolysis process. The specific scheme is as follows: First, the key NaOH / DEG stock solution in the synthesis process, 2.5mmol / mLNaOH was dissolved in 8mL diethylene glycol (DEG), the solution was heated to 120°C and maintained for 1h under stirring, then cooled to 70°C and waited. use. Then 0.576g polyacrylic acid (PAA) and 1.08gFeCl 3 After dissolving in 30mL DEG to form a transparent solution, it was heated to 220°C with stirring in the presence of nitrogen. When the color of the mixture in the flask turned light yellow, quickly inject 2mL of NaOH / DEG mixed solution under stirring. Keep at 220°C for 2h and then cool to room temperature. The final product was washed three times with distilled water and absolute ethanol, and finally dispersed into 10 mL of deionized water to obtain magnetic colloid clusters with a diameter of about 10 nm.
[0023] (2) The reaction of aqueous solution at room...
Embodiment ( 2
[0026] (1) Synthesis of monodisperse magnetic colloid clusters by high temperature pyrolysis process. The specific scheme is as follows: First, the key NaOH / DEG stock solution in the synthesis process, 2.5mmol / mLNaOH was dissolved in 6mL of diethylene glycol (DEG), the solution was heated to 120°C and maintained for 1h under stirring, then cooled to 70°C for use. Then 0.5g polyacrylic acid (PAA) and 0.9gFeCl 3 After being dissolved in 28mLDEG to form a transparent solution, it was heated to 220°C with stirring in the presence of nitrogen. When the color of the mixture in the flask turned light yellow, 2.5mLNaOH / DEG mixed solution was quickly injected into it under stirring, It was kept at 220° C. for 2 h and then cooled to room temperature. The final product was washed three times with distilled water and absolute ethanol, and finally dispersed into 10 mL of deionized water to obtain magnetic colloid clusters with a diameter of about 30 nm.
[0027] (2) The reaction of aque...
Embodiment ( 3
[0030] (1) Synthesis of monodisperse magnetic colloid clusters by high temperature pyrolysis process. The specific scheme is as follows: First, the key NaOH / DEG stock solution in the synthesis process, 2.5mmol / mLNaOH was dissolved in 10mL of diethylene glycol (DEG), the solution was heated to 120°C and kept under stirring for 1h, then cooled to 70°C for use. Then 0.6g polyacrylic acid (PAA) and 1.5gFeCl 3 After being dissolved in 34mLDEG to form a transparent solution, it was heated to 220°C with stirring in the presence of nitrogen, and when the color of the mixture in the flask turned light yellow, it was quickly injected with 3.5mLNaOH / DEG mixed solution under stirring, It was kept at 220° C. for 2 h and then cooled to room temperature. The final product was washed three times with distilled water and absolute ethanol, and finally dispersed into 10 mL of deionized water to obtain magnetic colloidal clusters with a particle size of about 70 nm.
[0031] (2) The reaction o...
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