A kind of integral formaldehyde room temperature oxidation catalyst and preparation method thereof
An oxidation catalyst, an integrated technology, applied in catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of catalyst coating peeling, complicated preparation process, catalytic activity Low problems, to achieve the effect of increasing the load, increasing the viscosity, and low shedding rate
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Embodiment 1
[0033] (1) Add 0.33g H to the beaker 2 PtCl 4 , 24.875g TiO 2 (P25), add 500ml distilled water, stir for 0.5h;
[0034] (2) Take 0.1g NaBH into another beaker 4 Stir and dissolve in 50ml water;
[0035] (3) Add the solution prepared in step (2) to the solution prepared in step (1) at room temperature, and stir for 1 h;
[0036] (4) Add 10 g sodium carboxymethyl cellulose to (3) solution, stir for 15 min;
[0037](5) Take cordierite honeycomb ceramics with a size of 15cm*15cm*1cm and immerse them in the solution prepared in step (4). After a certain period of time, take out the honeycomb carrier, remove the excess solution on the honeycomb carrier, and dry it at 150°C until The monolithic formaldehyde room temperature oxidation catalyst is prepared after the weight does not change.
Embodiment 2
[0039] (1) Add 0.33g H to the beaker 2 PtCl 4 , 24.875g SiO 2 (P25), add 500ml distilled water, stir for 0.5h;
[0040] (2) Take 0.1g NaBH into another beaker 4 Stir and dissolve in 50ml water;
[0041] (3) Add the solution prepared in step (2) to the solution prepared in step (1) at room temperature, and stir for 1 h;
[0042] (4) Add 10 g sodium carboxymethyl cellulose to (3) solution, stir for 15 min;
[0043] (5) Take cordierite honeycomb ceramics with a size of 15cm*15cm*1cm and immerse them in the solution prepared in step (4). After a certain period of time, take out the honeycomb carrier, remove the excess solution on the honeycomb carrier, and dry it at 150°C until The monolithic formaldehyde room temperature oxidation catalyst is prepared after the weight does not change.
Embodiment 3
[0045] (1) Add 0.35g Na to the beaker 2 PdCl 4 , 24.875g TiO 2 (P25), add 500ml distilled water, stir for 0.5h;
[0046] (2) Take 0.1g NaBH into another beaker 4 Stir and dissolve in 50ml water;
[0047] (3) Add the solution prepared in step (2) to the solution prepared in step (1) at room temperature, and stir for 1 h;
[0048] (4) Add 10 g sodium carboxymethyl cellulose to (3) solution, stir for 15 min;
[0049] (5) Take cordierite honeycomb ceramics with a size of 15cm*15cm*1cm and immerse them in the solution obtained in step (4). After a certain period of time, take out the honeycomb carrier, remove the excess solution on the honeycomb carrier, and dry it at 150°C to the weight The monolithic formaldehyde room temperature oxidation catalyst was prepared after no change.
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