Method for preparing doped nano titanium dioxide powder by microwave hydrothermal method
A nano-titanium dioxide, microwave hydrothermal method technology, applied in titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide and other directions, can solve the problems of long reaction time of nano-TiO2 powder, achieve short preparation cycle, save energy, Guaranteed effect of purity
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Embodiment 1
[0031] A method for preparing doped nano-titanium dioxide powder by microwave hydrothermal method, comprising the steps of:
[0032] Accurately weigh NbCl according to the molar ratio of 1:1 5 , InCl 3 4H 2 O and add an appropriate amount of absolute ethanol and continue to stir to make it completely dissolved, respectively, to obtain uniform A solution and B solution.
[0033] (1) Accurately weigh NbCl according to the molar ratio of 1:1 5 , InCl 3 4H 2 O and add an appropriate amount of absolute ethanol and continue to stir to make it completely dissolved, respectively, to obtain uniform A solution and B solution.
[0034] (2) Measure tetra-n-butyl titanate and place it in a beaker, add an appropriate amount of absolute ethanol dropwise, and continue to stir to obtain a uniform C solution, wherein tetra-n-butyl titanate and NbCl in step (1) 5 The molar ratio is 18:1;
[0035] (3) Slowly drop the B solution into the A solution, and continue to stir evenly to obtain the D...
Embodiment 2
[0040] A method for preparing doped nano-titanium dioxide powder by microwave hydrothermal method, comprising the steps of:
[0041] (1) Accurately weigh NbCl according to the molar ratio of 1:1 5 and InCl 3 4H 2 O and add an appropriate amount of absolute ethanol and continue to stir to make it completely dissolved, respectively, to obtain uniform A solution and B solution.
[0042] (2) Measure tetra-n-butyl titanate and place it in a beaker, add an appropriate amount of absolute ethanol dropwise, and continue to stir to obtain a uniform C solution, wherein tetra-n-butyl titanate and NbCl in step (1) 5 The molar ratio is 18:1;
[0043] (3) Slowly drop the B solution into the A solution, and continue to stir evenly to obtain the D solution;
[0044] (4) Slowly drop the D solution obtained in the step (3) into the C solution, and continue stirring until a uniform mixed solution is obtained;
[0045] (5) Select concentrated hydrochloric acid to regulate the pH of the soluti...
Embodiment 3
[0048] A method for preparing doped nano-titanium dioxide powder by microwave hydrothermal method, comprising the steps of:
[0049] (1) Accurately weigh NbCl according to the molar ratio of 1:1 5 , InCl 3 4H 2 O and add an appropriate amount of absolute ethanol and continue to stir to make it completely dissolved, respectively, to obtain uniform A solution and B solution.
[0050] (2) Measure tetra-n-butyl titanate and place it in a beaker, add an appropriate amount of absolute ethanol dropwise, and continue to stir to obtain a uniform C solution, wherein tetra-n-butyl titanate and NbCl in step (1) 5 The molar ratio is 18:1;
[0051] (3) Slowly drop the B solution into the A solution, and continue to stir evenly to obtain the D solution;
[0052] (4) Slowly drop the D solution obtained in step (3) into the solution C, and keep stirring until a uniform mixed solution is obtained;
[0053] (5) select concentrated hydrochloric acid to regulate solution pH for use, slowly ad...
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