A kind of photocatalytic degradation composite particle and its preparation method and application
A technology of composite particles and photocatalysis, which is applied in the direction of chemical instruments and methods, separation methods, physical/chemical process catalysts, etc., can solve the problems of non-porosity, weak adsorption, and inability to actively adsorb tail gas, etc., to achieve improved adsorption Concentrate, strong absorption, achieve effective degradation effect
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Embodiment 1
[0019] By mass, 20 parts of nanoscale anatase TiO 2 Put it in an oven at 110°C for 12 hours and seal it up. Rinse the surface of 40 parts of diatomite, a micron-sized porous material, with water, bake it in a far-infrared drying oven at 110°C for 12 hours, and seal it up. The dried nanoscale anatase TiO 2 and micron-scale porous material diatomaceous earth in a mass ratio of 1:2 and dispersed in a mixer, the stirring speed is 2000rpm, and the stirring time is 40min; 2 parts of silane coupling agent γ-aminopropyltriethoxysilane and 40 parts of industrial Ethanol is configured as a dispersion solution, and the dispersed nano-scale anatase TiO 2 Diatomite, a micron-sized porous material, was added to a three-necked flask with a condenser, heated and stirred, recovered by distillation, and then heated to 80°C for 12 hours to obtain photocatalytic degradation composite particles (TiO 2 / Diatomaceous earth degradable composite particles.
Embodiment 2
[0021] By mass, 20 parts of nanoscale anatase TiO 2 Put it in an oven at 110°C for 12 hours and then seal it up. Wash the surface of 100 parts of diatomite, a micron-sized porous material, with water, bake it in a far-infrared drying oven at 110°C for 12 hours, and then seal it up. The dried nanoscale anatase TiO 2 and micron-scale porous material diatomaceous earth are put into the mixer according to the mass ratio of 1:2 to disperse, the stirring speed is 2000rpm, and the stirring time is 60min; 5 parts of silane coupling agent γ-glycidyl etheroxypropyl trimethoxysilane and 60 parts of industrial ethanol is configured into a dispersion solution, and the dispersed nano-scale anatase TiO 2 Diatomite, a micron-sized porous material, was added to a three-necked flask with a condenser, heated and stirred, recovered by distillation, and then heated to 80°C for 12 hours to obtain photocatalytic degradation composite particles (TiO 2 / diatomite degradable composite particles).
Embodiment 3
[0023] By mass, 20 parts of nanoscale anatase TiO 2 Put it in an oven at 110°C and bake it for 12 hours, then seal it up, clean the surface of 60 parts of diatomite, a micron-sized porous material, with ultrasonic waves for 30 minutes, bake it in a far-infrared drying oven at 110°C for 12 hours, and seal it up. The dried nanoscale anatase TiO 2 and the micron-scale porous material diatomaceous earth are put into a mixer at a mass ratio of 1:3 to disperse, the stirring speed is 2000rpm, and the stirring time is 60min; 4 parts of titanate coupling agent 102 and 50 parts of industrial ethanol are prepared into a dispersion solution, and mixed with Dispersed nanoscale anatase TiO 2 Diatomite, a micron-sized porous material, was added to a three-necked flask with a condenser, heated and stirred, recovered by distillation, and then heated to 80°C for 12 hours to obtain photocatalytic degradation composite particles (TiO 2 / diatomite degradable composite particles).
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Abstract
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