Method for preparing nano catalytic composite materials by utilizing integrating process of ultrasonic-film-anti-solvent method
A technology of nano-catalysis and anti-solvent method, which is applied in the field of preparation of nano-catalytic composite materials, can solve the problems that it is difficult to uniformly disperse nano-materials, it is difficult to obtain nano-catalytic composite materials with particle size and morphology, and the uniform dispersion of nano-materials cannot be solved. Solve and other problems to achieve the effect of low production cost, stable structure and simple process
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Embodiment 1
[0029] Example 1, Nano Fe 2 O 3 / AP Preparation of Catalytic Composite
[0030] First, under the action of ultrasound (ultrasonic power is 1000w, ultrasonic frequency is 10 6 Hz, ultrasonic time is 15min), a certain amount of nano Fe 2 O 3 (30nm) dispersed in 200mL ethyl acetate. Then, under the action of 0.3MPa nitrogen, press 20mL of AP saturated acetone solution into the crystallization tank, and the AP will be nano-Fe 2 O 3 It is a nucleus, growing on its surface and finally forming nano-Fe 2 O 3 / AP composite particles. After filtering and washing the prepared nanocomposite material, it was vacuum dried at 60° C. for 3 hours.
Embodiment 2
[0031] Example 2. Preparation of nano CuO / AP catalytic composite material
[0032] First, under the action of ultrasound (ultrasonic power is 1200w, ultrasonic frequency is 10 7 Hz, the ultrasound time is 20 min), and a certain amount of nano CuO is dispersed in 300 mL of ethyl acetate. Then, under the action of 0.4 MPa nitrogen, 10 mL of AP saturated DMF solution is pressed into the crystallization tank, the AP will take nano CuO as the core and grow on its surface to form nano CuO / AP composite particles. After filtering and washing the prepared nanocomposite material, it was vacuum dried at 60° C. for 3 hours.
Embodiment 3
[0033] Embodiment 3 is basically the same as embodiment 1, but has the following changes:
[0034] The nano catalyst is Co 2 O 3 The particle size of the nano-catalyst is 10nm.
[0035] The solvent of ammonium perchlorate is water; the non-solvent of ammonium perchlorate is ethanol.
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