Surface molecular imprinting composite photocatalytic material as well as preparation method and application thereof
A technology of surface molecular imprinting and composite photocatalysis, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., can solve the problem of long degradation time and inability to selectively degrade a single To achieve high purity, enhance recycling performance, and improve utilization rate
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[0031] Example 1:
[0032] Step 1. Preparation of g-C 3 N 4 Photocatalyst: Put 5g of purchased melamine into a crucible, place it in a muffle furnace, calcine in an air atmosphere, heat up to 500°C at a heating rate of 4°C / min, and keep it at a constant temperature for 2h, and the same temperature rise The rate continues to heat up to 520℃, and keep it at constant temperature for 2h, then cool to room temperature naturally, then gC is obtained 3 N 4 Photocatalyst; keep for later use.
[0033] Step 2: Preparation of Fe by hydrothermal deposition technology 3 O 4 / g-C 3 N 4 Composite material: weigh 2.2gg-C 3 N 4 Disperse in 600ml ethanol / water solution with a volume ratio of 1:2 and sonicate for 5 hours to make g-C 3 N 4 Suspension; 2mmolFeCl 3 ·6H 2 O and 1mmolFeCl 2 ·4H 2 O each dissolved in 20ml distilled water and added to the above g-C 3 N 4 Of the suspension to obtain a mixed solution. The above mixed solution was stirred at 80°C for 30 minutes, and then 10ml ammonia was quick...
Example Embodiment
[0036] Example 2:
[0037] Step 1. Preparation of g-C 3 N 4 Photocatalyst: Put 5g of the purchased melamine into a crucible, place it in a muffle furnace, calcine in an air atmosphere, heat up to 500°C at a heating rate of 2.3°C / min, and keep it at a constant temperature for 2h. The heating rate continues to rise to 520℃, and keep it at constant temperature for 2h, then cool to room temperature naturally to obtain gC 3 N 4 Photocatalyst; keep for later use.
[0038] Step 2: Preparation of Fe by hydrothermal deposition technology 3 O 4 / g-C 3 N 4 Composite material: weigh 2.2gg-C 3 N 4 Disperse in 600ml ethanol / water solution with a volume ratio of 1:2 and sonicate for 5 hours to make g-C 3 N 4 Suspension; 2mmolFeCl 3 ·6H 2 O and 1mmolFeCl 2 ·4H 2 O each dissolved in 20ml distilled water and added to the above g-C 3 N 4 Of the suspension to obtain a mixed solution. The above mixed solution was stirred at 80°C for 30 minutes, and then 10ml ammonia was quickly injected. The resulting...
Example Embodiment
[0041] Example 3:
[0042] Step 1. Preparation of g-C 3 N 4 Photocatalyst: Put 5g of the purchased melamine into a crucible, place it in a muffle furnace, calcine in an air atmosphere, heat up to 500°C at a heating rate of 4°C / min, and keep it at a constant temperature for 2h. The heating rate continues to rise to 520℃, and keep it at constant temperature for 2h, then cool to room temperature naturally to obtain gC 3 N 4 Photocatalyst; keep for later use.
[0043] Step 2: Preparation of Fe by hydrothermal deposition technology 3 O 4 / g-C 3 N 4 Composite material: weigh 2.2gg-C 3 N 4 Disperse in 600ml ethanol / water solution with a volume ratio of 1:2 and sonicate for 5 hours to make g-C 3 N 4 Suspension; 2mmolFeCl 3 ·6H 2 O and 1mmolFeCl 2 ·4H 2 O each dissolved in 20ml distilled water and added to the above g-C 3 N 4 Of the suspension to obtain a mixed solution. The above mixed solution was stirred at 80°C for 30 minutes, and then 10ml ammonia was quickly injected. The resulting m...
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