A kind of preparation method of nitrogen-containing semiconductor nanometer material
A nanomaterial and semiconductor technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of long length of titanate nanotubes
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Embodiment 1
[0023] Step (1). Sol-gel method prepares bismuth-doped titania nanoparticles:
[0024] 1-1. Add 10 mL of butyl titanate to 20 mL of absolute ethanol, and stir evenly to form 30 mL of butyl titanate alcohol solution;
[0025] 1-2. Add 0.03mM bismuth nitrate to 5mL polyethylene glycol-200, dissolve to form a bismuth nitrate solution;
[0026] 1-3. Stir 1mL nitric acid, 2mL deionized water, and 20 mL absolute ethanol to form 23 mL acidic solution;
[0027] 1-4. Stir and mix the bismuth nitrate solution obtained in step 1-2 with the butyl titanate alcohol solution obtained in step 1-1, then add dropwise the acidic solution obtained in step 1-3, and stir for 2 hours at room temperature to form Gel, and then aged for 20 hours; the aged gel was dried in a vacuum drying oven to remove ethanol and moisture, washed with alcohol, washed with water, dried and crushed, and then calcined in a muffle furnace at 500°C for 6 hours. Obtain bismuth-doped titanium dioxide nanoparticles;
[002...
Embodiment 2
[0033] Step (1). Sol-gel method prepares bismuth-doped titania nanoparticles:
[0034] 1-1. Add 10 mL of isopropyl titanate to 30 mL of absolute ethanol, and stir evenly to form 40 mL of isopropyl titanate alcohol solution;
[0035] 1-2. Add 0.3mM bismuth chloride to 10 mL polyethylene glycol-200, and dissolve to form a bismuth chloride solution;
[0036] 1-3. Stir 2 mL of nitric acid, 4 mL of deionized water, and 20 mL of absolute ethanol to form a 26 mL acidic solution;
[0037]1-4. Stir and mix the bismuth chloride solution obtained in step 1-2 with the isopropyl titanate alcohol solution obtained in step 1-1, then add dropwise the acidic solution obtained in step 1-3, and stir for 5 hours at room temperature , form a gel, and then age for 40 hours; dry the aged gel in a vacuum oven to remove ethanol and moisture, wash with alcohol, wash with water, dry, and pulverize, and then calcined in a muffle furnace at 600 ° C for 4 hours, bismuth-doped titania nanoparticles were o...
Embodiment 3
[0043] Step (1). Sol-gel method prepares bismuth-doped titania nanoparticles:
[0044] 1-1. Add 10 mL of ethyl titanate to 25 mL of absolute ethanol, and stir evenly to form an ethyl titanate alcohol solution;
[0045] 1-2. Add 0.1mM bismuth acetate to 8mL polyethylene glycol-200 and dissolve to form a bismuth acetate solution; the molar volume ratio of bismuth salt to titanate in step 1-1 is 0.03-0.3:10, unit is mM / mL,
[0046] 1-3. Stir 1.5mL nitric acid, 3mL deionized water, and 20 mL absolute ethanol to form 24.5 mL acidic solution;
[0047] 1-4. Stir and mix the bismuth acetate solution obtained in step 1-2 with the ethyl titanate alcohol solution obtained in step 1-1, then add dropwise the acidic solution obtained in step 1-3, and stir for 4 hours at room temperature to form Gel, and then aged for 30 hours; the aged gel was dried in a vacuum drying oven to remove ethanol and water, washed with alcohol, washed with water, dried and crushed, and then calcined in a muffle...
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