Bayer-process red mud modified biomass activated carbon for degrading formaldehyde and preparation method thereof
A Bayer process red mud and activated carbon technology, applied in separation methods, chemical instruments and methods, carbon compounds, etc., can solve the problems of unfavorable ecological environment sustainable development, short service life of activated carbon, secondary pollution of indoor environment, etc. The effect of sustainable development, short service life and lower production costs
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[0024] Example 1
[0025] Taking the preparation of 100g of the product of the present invention as an example, the components and their mass ratios are:
[0026]
[0027] The biomass waste is a nut shell; the red mud is Bayer process red mud; the phosphoric acid is of analytical grade; the anhydrous ethanol is of analytical grade; the hydrochloric acid is of analytical grade; the water is deionized water .
[0028] First, the biomass waste is washed and dried, and then pulverized by a frequency conversion planetary ball mill at a speed of 500r / min for 90 min to obtain biomass waste powder; the red mud is ground using a frequency conversion planetary ball mill at a speed of 600r / min for 60 min. Obtain red mud powder.
[0029] Secondly, after mixing the micropowder of biomass waste with phosphoric acid, use an ultrasonic cell disintegrator with an ultrasonic power of 400W to ultrasonically disperse for 30 minutes to obtain a solution of micropowder of biomass waste; mix the micropowde...
Example Embodiment
[0031] Example 2
[0032] Taking the preparation of 100g of the product of the present invention as an example, the components and their mass ratios are:
[0033]
[0034] The biomass waste is fruit pit; the red mud is Bayer process red mud; the phosphoric acid is of analytical grade; the anhydrous ethanol is of analytical grade; the hydrochloric acid is of analytical grade; the water is deionized water .
[0035] First, the biomass waste is washed and dried, and then pulverized with a frequency conversion planetary ball mill at a speed of 400r / min for 45 minutes to obtain biomass waste powder; the red mud is ground using a frequency conversion planetary ball mill at a speed of 500r / min for 75 minutes, Obtain red mud powder.
[0036] Secondly, after mixing the micropowder of biomass waste with phosphoric acid, ultrasonically disperse it for 50 minutes by using an ultrasonic cell disruptor with an ultrasonic power of 600W to obtain a micropowder solution of biomass waste; mix the micr...
Example Embodiment
[0038] Example 3
[0039] Taking the preparation of 100g of the product of the present invention as an example, the components and their mass ratios are:
[0040]
[0041]
[0042] The biomass waste is straw; the red mud is Bayer process red mud; the phosphoric acid is of analytical grade; the anhydrous ethanol is of analytical grade; the hydrochloric acid is of analytical grade; and the water is deionized water.
[0043] First, the biomass waste is washed and dried, and then pulverized by a frequency conversion planetary ball mill at a rotation speed of 600r / min for 60 minutes to obtain biomass waste micropowder; the red mud is ground using a frequency conversion planetary ball mill at a rotation speed of 400r / min for 90 min. Obtain red mud powder.
[0044] Secondly, after mixing the micropowder of biomass waste with phosphoric acid, use an ultrasonic cell disruptor with an ultrasonic power of 500W to ultrasonically disperse for 40 minutes to obtain a micropowder solution of biomass ...
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