A kind of preparation method of formaldehyde purification adsorbent
A formaldehyde purification and adsorbent technology, applied in chemical instruments and methods, separation methods, other chemical processes, etc., can solve the problems of short service life of air purifiers, limited formaldehyde removal effect, etc., and achieve good adsorption effect and good pore characteristics , the effect of large specific surface area
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[0025] The embodiment of the present invention discloses a preparation method of a formaldehyde purification adsorbent, comprising the following steps: adding 10-15 parts by mass of graphene carbon material into deionized water, and obtaining a homogeneous solution after ultrasonic dispersion; Add 2-5 parts by mass of hydrazine hydrate solution and 1-2 parts by mass of carbonic acid to the precursor solution. Ammonium hydrogen and 2-4 mass parts of ammonia solution are heated and refluxed at 80-100° C. to form a black solution, which is filtered and dried to obtain a formaldehyde purification adsorbent.
[0026] As a preferred version, the graphene carbon material is prepared according to the following method: in an ice-water bath, add 4-6 mass parts of graphite flakes to 80-100 mass parts of concentrated nitric acid, and then add 2-3 mass parts of potassium carbonate And 2-4 parts by mass of magnesium silicate, slowly add 6-8 parts by mass of KMnO 4 , stirring and reacting f...
Embodiment 1
[0043] The preparation method of the mesoporous and mesoporous metal framework nanocarrier material is as follows:
[0044] Dissolve 24 parts by mass of chromium nitrate in 240 parts by mass of deionized water and 35 parts by mass of methanol solution, stir at 300 rpm for 30 minutes, add 7 parts by mass of terephthalic acid and 3 parts by mass of hexamethylenediamine, and stir for 10 minutes . 1 part by mass of 10 mol / L sulfuric acid solution was added dropwise, and stirred for 20 min. The mixed solution was transferred to a stainless steel autoclave, and in a muffle furnace, the temperature was raised to 180°C at a rate of 2°C / min, and the reaction was carried out at a constant temperature for 10 hours, and then cooled to room temperature at a rate of 2°C / min. The product is filtered and washed, and dried overnight in a vacuum oven at 60° C. to obtain a mesoporous and mesoporous metal framework nanocarrier material.
[0045] The preparation method of graphene carbon is as f...
Embodiment 2
[0052] The preparation method of the mesoporous and mesoporous metal framework nanocarrier material is as follows:
[0053] Dissolve 24 parts by mass of chromium nitrate in 260 parts by mass of deionized water and 30 parts by mass of methanol solution, stir at 300 rpm for 30 minutes, add 9 parts by mass of terephthalic acid and 3 parts by mass of hexamethylenediamine, and stir for 10 minutes . Add 2 parts by mass of 10 mol / L sulfuric acid solution dropwise, and stir for 20 min. The mixed solution was transferred to a stainless steel autoclave, and in a muffle furnace, the temperature was raised to 180°C at a rate of 2°C / min, and the reaction was carried out at a constant temperature for 10 hours, and then cooled to room temperature at a rate of 2°C / min. The product is filtered and washed, and dried overnight in a vacuum oven at 60° C. to obtain a mesoporous and mesoporous metal framework nanocarrier material.
[0054] The preparation method of graphene carbon is as follows: ...
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