Potassium titanate nanobelt and its preparation method and use
A technology of nanobelt and potassium titanate, applied in titanate, alkali metal titanate, chemical instruments and methods, etc., can solve the problem of inability to obtain ultraviolet light transmittance, inability to use ultraviolet shielding, and low visible light transmittance etc., to achieve high visible light transmittance, suitable for large-scale industrial production, and simple preparation methods
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Embodiment 1
[0038] The concrete steps of preparation are:
[0039] Step 1, first add water-soluble titanium salt and urea into water according to the molar ratio of 1:1.5, and prepare a mixed solution with a concentration of titanium salt of 0.4mol / L; wherein, the water-soluble titanium salt is titanium sulfate, Water is deionized water. Then the mixture was heated to boiling and then kept warm for 10 min to obtain a suspension.
[0040] Step 2, firstly add powdered potassium hydroxide to the suspension to make the concentration of potassium hydroxide therein reach 3 mol / L, and then place it at 150° C. for closed reaction for 24 hours to obtain a reaction liquid. The reaction solution is then subjected to solid-liquid separation, washing and drying in sequence; wherein, the solid-liquid separation process is centrifugal (or filtration) separation, the rotating speed of centrifugal separation is 2000r / min, and the time is 30min, and the washing process is to use deionized Water washes th...
Embodiment 2
[0042] The concrete steps of preparation are:
[0043] Step 1, first add water-soluble titanium salt and urea into water according to the molar ratio of 1:3, and prepare a mixed solution with a concentration of titanium salt of 0.5mol / L; wherein, the water-soluble titanium salt is titanium sulfate, Water is deionized water. Then the mixture was heated to boiling and then kept warm for 13 minutes to obtain a suspension.
[0044] Step 2, firstly add powdered potassium hydroxide to the suspension to make the concentration of potassium hydroxide therein reach 3.5 mol / L, and then place it at 180° C. for closed reaction for 21 hours to obtain a reaction liquid. The reaction solution is then subjected to solid-liquid separation, washing and drying in sequence; wherein, the solid-liquid separation process is centrifugal (or filtration) separation, the rotational speed during centrifugal separation is 4000r / min, and the time is 23min, and the washing process is to use deionized Water...
Embodiment 3
[0046] The concrete steps of preparation are:
[0047] Step 1, first add water-soluble titanium salt and urea into water according to the molar ratio of 1:4.5, and prepare a mixed solution with a concentration of titanium salt of 0.6mol / L; wherein, the water-soluble titanium salt is titanium sulfate, Water is deionized water. Then the mixture was heated to boiling and then kept warm for 15 min to obtain a suspension.
[0048] Step 2: firstly add powdered potassium hydroxide to the suspension to make the concentration of potassium hydroxide therein reach 4 mol / L, and then place it at 220° C. for a closed reaction for 18 hours to obtain a reaction solution. Then the reaction solution is subjected to solid-liquid separation, washing and drying in sequence; wherein, the solid-liquid separation process is centrifugal (or filtration) separation, the rotating speed of centrifugal separation is 6000r / min, and the time is 16min, and the washing process is to use deionized Water washe...
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