Preparation method of titanium dioxide nanorod
A titanium dioxide and nanorod technology, applied in the directions of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of low product purity and complicated process steps, and achieve the effects of simple process steps, controllable conditions and wide applicability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0020] A kind of preparation method of titanium dioxide nanorod of the present invention, specifically implement according to the following steps:
[0021] Step 1. Add tetraisopropyl titanate and strong electrolyte inorganic salt to 20% ammonia water, stir vigorously while tetraisopropyl titanate is rapidly hydrolyzed, and mix uniformly to obtain a suspension;
[0022] Among them, the mass ratio of tetraisopropyl titanate to strong electrolyte inorganic salt is 1:4~6; the volume ratio of tetraisopropyl titanate to ammonia water is 1:7~10; the strong electrolyte inorganic salt is chloride Any one of sodium, potassium chloride, barium chloride, sodium sulfate, barium nitrate, potassium sulfate and potassium nitrate.
[0023] Step 2, putting the suspension prepared in step 1 into a rubber-lined stainless steel autoclave for reaction to obtain a precipitated product;
[0024] Wherein, the reaction temperature is 360K-400K, and the reaction time is 40h-50h.
[0025] Step 3, washi...
Embodiment 1
[0028] Step 1. Add 8ml of tetraisopropyl titanate and 1.5g of sodium chloride to 65ml of 20% ammonia water, stir vigorously while tetraisopropyl titanate is rapidly hydrolyzed, and mix uniformly to obtain a suspension liquid;
[0029] Step 2, putting the suspension prepared in step 1 into a rubber-lined stainless steel autoclave for reaction, the reaction temperature is 360K, and the reaction time is 40h to obtain a precipitated product;
[0030] Step 3, washing the precipitated product obtained in step 2 with deionized water and dilute hydrochloric acid to obtain a washing solution, and continuing to dry to obtain titanium dioxide nanorods.
[0031] Among them, dilute hydrochloric acid accounts for 30% of the volume of deionized water; the drying temperature is 360K, and the drying time under normal pressure is 10 hours.
[0032] The prepared titanium dioxide nano-rods have a bouquet-like appearance of a plurality of aggregates, the diameter of a single nano-rod is 20nm-50nm...
Embodiment 2
[0034] Step 1. Add 5ml of tetraisopropyl titanate and 0.55% potassium chloride to 50ml of 20% ammonia water, stir vigorously while the tetraisopropyl titanate is rapidly hydrolyzed, and mix uniformly to obtain a suspension;
[0035] Step 2, putting the suspension prepared in step 1 into a rubber-lined stainless steel autoclave for reaction, the reaction temperature is 380K, and the reaction time is 43h to obtain the precipitated product;
[0036] Step 3, washing the precipitated product obtained in step 2 with deionized water and dilute hydrochloric acid to obtain a washing solution, and continuing to dry to obtain titanium dioxide nanorods.
[0037] Among them, dilute hydrochloric acid accounts for 35% of the volume of deionized water; the drying temperature is 370K, and the drying time under normal pressure is 11 hours.
[0038] The prepared titanium dioxide nano-rods have a bouquet-like appearance of a plurality of aggregates, the diameter of a single nano-rod is 20nm-50nm,...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Diameter | aaaaa | aaaaa |
| Length | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More