A kind of rectorite mesoporous material and its preparation method and application
A technology of mesoporous material and rectorite, which is applied in the field of mesoporous materials of natural clay minerals, can solve the problems of environmental impact and increase the preparation cost, and achieves the effects of low preparation cost, saving preparation cost and improving the thickness of the pore wall.
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Embodiment 1
[0030] A preparation method of rectorite mesoporous material, comprising the steps of:
[0031] (1) First take 10g of natural rectorite, wash it with distilled water, and dry it at 50°C; then weigh 10g of sodium hydroxide and put it in a mortar and mix it well with the above rectorite, and then move it to the muffle In the furnace, the temperature was raised to 800°C at a rate of 5°C / min, and calcined at 800°C for 2 hours. The calcined sample was added with 400mL deionized water, stirred for 16 hours, and the filtrate was collected after suction filtration for future use;
[0032] (2) Weigh 1g of cetyltrimethylammonium bromide and 1g of polyethylene glycol 4000 in 50mL of deionized water, and place them in a water bath at 30°C and stir to fully dissolve them, then add 80mL of the product obtained in step (1) The filtrate was fully stirred for 1 h; then the pH value was adjusted to 9.5 with hydrochloric acid solution, and the white flocculent precipitate appeared, and then stir...
Embodiment 2
[0036] A preparation method of rectorite mesoporous material, comprising the steps of:
[0037](1) First take 10g of natural rectorite, wash it with distilled water, and dry it at 47°C; then weigh 13g of sodium hydroxide and put it in a mortar and mix it well with the above-mentioned rectorite, and then move it to the muffle In the furnace, the temperature was raised to 802°C at a rate of 6°C / min, and calcined at 802°C for 1.9h. The calcined sample was added with 405mL deionized water, stirred for 15h, and the filtrate was collected after suction filtration for future use;
[0038] (2) Weigh 1g of cetyltrimethylammonium bromide and 1g of polyethylene glycol 4000 in 48mL of deionized water, and place them in a water bath at 32°C and stir to fully dissolve them, then add 80mL of the product obtained in step (1) The filtrate was fully stirred for 1.1h; then the pH value was adjusted to 9.6 with hydrochloric acid solution, and the white flocculent precipitate appeared, and then st...
Embodiment 3
[0042] A preparation method of rectorite mesoporous material, comprising the steps of:
[0043] (1) First take 10g of natural rectorite, wash it with distilled water, and dry it at 53°C; then weigh 15g of sodium hydroxide and place it in a mortar with the above-mentioned rectorite, grind it well, mix it evenly, and then move it to the muffle In the furnace, the temperature was raised to 798°C at a rate of 4°C / min, and calcined at 798°C for 2.1h. The calcined sample was added with 395mL deionized water, stirred for 17h, and the filtrate was collected after suction filtration for future use;
[0044] (2) Weigh 1g of cetyltrimethylammonium bromide and 1g of polyethylene glycol 4000 in 52mL of deionized water, and place them in a water bath at 31°C and stir to fully dissolve them, then add 80mL of the product obtained in step (1) The filtrate was fully stirred for 1.2h; then the pH value was adjusted to 9.4 with hydrochloric acid solution, and the white flocculent precipitate appe...
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