Preparation method of stripping type hydrotalcite

[0016] Using commercially available hydrotalcite, place the hydrotalcite in a muffle furnace and calcinate it at 250°C for 12 hours to make a layered double hydroxyl compound metal oxide (LDO); weigh 4g of the obtained product and add it to a volume of 100mL , in a sodium formate solution with a concentration of 20mmol / L, precipitate, separate, wash, and dry under vacuum at 60°C; put the obtained product in a microwave oven, 100W, and heat for 5min to obtain a peeled hydrotalcite product.

[0018] Using self-made magnesium-aluminum hydrotalcite, put the hydrotalcite in a muffle furnace, and calcined it at 400°C for 1 hour to make a layered double hydroxyl compound metal oxide (LDO); weigh 4g of the obtained product and add it to the volume 50 mL of sodium formate solution with a concentration of 1 mol / L, precipitate, separate, wash, and dry in vacuum at 70°C; put the obtained product in a microwave oven at 700W, and heat for 1 min to obtain the exfoliated hydrotalcite product.

[0020] Using commercially available or self-made hydrotalcite, place the hydrotalcite in a muffle furnace and calcinate at 300°C for 8 hours to make a layered double hydroxyl compound metal oxide (LDO); weigh 4g of the obtained product and add it to the The volume is 80mL, the concentration is 100mmol / L sodium formate solution, precipitation separation, washing, vacuum drying at 60°C; put the obtained product in a microwave oven, 500W, and heat for 3min to obtain the exfoliated hydrotalcite product.