Ferrate piezoelectric catalytic porous ceramic material as well as preparation method and application thereof
A ferrite piezoelectric, porous ceramic technology, applied in chemical instruments and methods, separation methods, physical/chemical process catalysts, etc., can solve the problems of increasing costs, increasing secondary greenhouse gas emissions, etc. Stable, simple and easy-to-prepare effect
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[0031] The embodiment of the present invention also provides a method for preparing a ferrite piezoelectric catalytic porous ceramic material, which includes the following steps:
[0032] Step 1: Provide a ferrite solution with a molar mass ratio of bismuth ions and positive trivalent cations of 1:1, and immerse the porous ceramic matrix in the ferrite solution to fully adsorb iron ions and positive trivalent cations, and then undergo adsorption treatment The porous ceramic substrate is placed in NaOH solution and soaked for 3-5h;
[0033] Step 2: The porous ceramic substrate is processed 3-10 times in accordance with the method of Step 1, and then reacted for 4-12h at a temperature of 450-650℃;
[0034] Step 3: Repeat the operations of Step 1 and Step 2 until the iron ions and positive trivalent cations are all adsorbed on the surface and inside of the porous ceramic matrix to prepare the ferrite piezoelectric catalytic porous ceramic material.
[0035] Further, the concentration of ...
Embodiment 1
[0043] Step 1: Provide a ferrite solution with a molar mass ratio of iron ions to bismuth ions of 1:1, and soak the porous ceramic matrix in the ferrite solution to fully adsorb iron and bismuth ions, and then remove the porous after adsorption treatment The ceramic substrate is placed in 300mL 1.0mol / L NaOH solution and soaked for 3h.
[0044] Step 2: The porous ceramic substrate is processed for 5 times in accordance with the method of Step 1, and then reacted for 18 hours at a temperature of 450°C.
[0045] Step 3: Repeat the operations of Step 1 and Step 2 until the iron ions and bismuth ions are all adsorbed on the surface and inside of the porous ceramic substrate to prepare the piezoelectric catalytic porous ceramic material.
Embodiment 2
[0047] Step 1: Provide a ferrite solution with a molar mass ratio of iron ions to bismuth ions of 1:1, and soak the porous ceramic matrix in the ferrite solution to fully adsorb iron and bismuth ions, and then remove the porous after adsorption treatment The ceramic substrate is placed in 300mL 1.0mol / L NaOH solution and soaked for 3h.
[0048] Step 2: The porous ceramic substrate is processed for 5 times in accordance with the method of Step 1, and then reacted for 8 hours at a temperature of 650°C.
[0049] Step 3: Repeat the operations of Step 1 and Step 2 until the iron ions and bismuth ions are all adsorbed on the surface and inside of the porous ceramic substrate to prepare the piezoelectric catalytic porous ceramic material.
[0050] The piezoelectric catalytic porous ceramic materials prepared in Examples 1 to 2 are placed at the tuyere to achieve the purpose of air purification.
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