Efficient formaldehyde-removing spraying agent and preparation method and application thereof
A formaldehyde and spray technology, which is applied in the field of high-efficiency formaldehyde removal spray and its preparation, can solve the problem of low formaldehyde removal efficiency and achieve long-term effective and high-efficiency removal of formaldehyde
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Embodiment 1
[0019] Weigh zinc nitrate, titanium tetrachloride, ferric chloride and ethanol (the molar ratio of titanium tetrachloride to zinc nitrate is 1:0.5; the molar ratio of titanium tetrachloride to ferric chloride is 1:1; tetrachloride The molar ratio of titanium to ethanol is 1:40), first add titanium tetrachloride, zinc nitrate and ferric chloride into ethanol, adjust PH=2~3 by adding acetic acid dropwise, and stir to make it fully dissolved; then mix The solution is added to the supercritical reactor, and the temperature (70°C) and pressure (20MPa) are controlled, and the pressure is maintained for a certain period of time (12 hours). Zinc oxide, titanium oxide and iron oxide ternary nano-composite powder can be obtained after the pressure is relieved; the prepared ternary nano-composite powder is mixed with a certain amount of dispersant and deionized water (ternary nano-composite powder and dispersant The mass of the ternary nanocomposite powder and deionized water is 1:0.2, an...
Embodiment 2
[0021] Weigh zinc nitrate, titanium tetrachloride, ferric chloride and ethanol (the molar ratio of titanium tetrachloride to zinc nitrate is 1:1; the molar ratio of titanium tetrachloride to ferric chloride is 1:3; tetrachloride The molar ratio of titanium to ethanol is 1:50), first add titanium tetrachloride, zinc nitrate and ferric chloride to ethanol, adjust PH=2~3 by dripping acetic acid, and stir to make it fully dissolved; then mix The solution is added to the supercritical reactor, the temperature (80°C) and pressure (30MPa) are controlled, and the pressure is maintained for a certain period of time (36 hours). Zinc oxide, titanium oxide and iron oxide ternary nano-composite powder can be obtained after the pressure is relieved; the prepared ternary nano-composite powder is mixed with a certain amount of dispersant and deionized water (ternary nano-composite powder and dispersant The quality of the ternary nanocomposite powder and deionized water is 1:0.3, and the qualit...
Embodiment 3
[0023] Weigh zinc nitrate, titanium tetrachloride, ferric chloride and ethanol (the molar ratio of titanium tetrachloride to zinc nitrate is 1:55; the molar ratio of titanium tetrachloride to ferric chloride is 1:3; tetrachloride The molar ratio of titanium to ethanol is 1:60), first add titanium tetrachloride, zinc nitrate and ferric chloride to ethanol, adjust PH=2~3 by dripping acetic acid, and stir to make it fully dissolved; then mix The solution is added to the supercritical reactor, and a certain temperature (60°C) and pressure (25MPa) are controlled, and the pressure is maintained for a certain period of time (24 hours). Zinc oxide, titanium oxide and iron oxide ternary nano-composite powder can be obtained after the pressure is relieved; the prepared ternary nano-composite powder is mixed with a certain amount of dispersant and deionized water (ternary nano-composite powder and dispersant The quality of the ternary nanocomposite powder and deionized water is 1:0.4, and...
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