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Method for preparing regular petal-shaped WO3/Fe2O3

A petal-shaped and regular technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, chemical/physical processes, etc. There are many controllable variables and other problems to achieve the effect of reducing experimental risk, simple production process and good adsorption

Pending Publication Date: 2022-03-15
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has been verified to be feasible, but the risk of the experiment is quite high, such as the release of toxic gas NO, the steps are cumbersome, and there are too many controllable variables, making it difficult to implement in future production, especially the new combustion method is not small, so There are security risks

Method used

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  • Method for preparing regular petal-shaped WO3/Fe2O3
  • Method for preparing regular petal-shaped WO3/Fe2O3
  • Method for preparing regular petal-shaped WO3/Fe2O3

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Weigh 21.2 ml of deionized water and 9.4 ml of hydrazine hydrate in a beaker, and keep stirring to determine it as solution A; then weigh 38 ml of toluene, 1 ml of oleic acid and 0.5 g of iron acetylacetonate in a beaker and continuously Stir and set as B solution. Add solution B to A and mix without stirring. Reaction in a reactor: put the mixed solution into a 100 ml polytetrafluoroethylene liner, put it into a reactor, react in an oven at 150 °C for 24 h, and cool to room temperature. The product was sonicated in absolute ethanol, washed with absolute ethanol three times with the help of a magnet, and finally stored in absolute ethanol for later use. Weigh 5 mmol sodium tungstate into a beaker, add deionized water and stir to dissolve for 30 min, adjust the pH of the solution to 4.2 with dilute sulfuric acid, put it into a 50 ml liner, and add the spare Fe 3 o 4 , put the inner liner into the reaction kettle, react in an oven at 160 °C for 4 days, take out the ove...

Embodiment 2

[0028] Weigh 21.2 ml of deionized water and 9.4 ml of hydrazine hydrate in a beaker, and keep stirring to determine it as solution A; then weigh 38 ml of toluene, 1 ml of oleic acid and 0.5 g of iron acetylacetonate in a beaker and continuously Stir and set as B solution. Add solution B to A and mix without stirring. Reaction in a reactor: put the mixed solution into a 100 ml polytetrafluoroethylene liner, put it into a reactor, react in an oven at 140 °C for 24 h, and cool to room temperature. The product was sonicated in absolute ethanol, washed with absolute ethanol three times with the help of a magnet, and finally stored in absolute ethanol for later use. Weigh 5 mmol sodium tungstate into a beaker, add deionized water and stir to dissolve for 15 min, adjust the pH of the solution to 4.4 with dilute sulfuric acid, put it into a 50 ml liner, and add the spare Fe 3 o 4 , put the inner liner into the reaction kettle, react in an oven at 160 °C for 4 days, take out the ove...

Embodiment 3

[0030] Weigh 21.2 ml of deionized water and 9.4 ml of hydrazine hydrate in a beaker, and keep stirring to determine it as solution A; then weigh 38 ml of toluene, 1 ml of oleic acid and 0.5 g of iron acetylacetonate in a beaker and continuously Stir and set as B solution. Add solution B to A and mix without stirring. Reaction in a reactor: put the mixed solution into a 100 ml polytetrafluoroethylene liner, put it into a reactor, react in an oven at 130 °C for 24 h, and cool to room temperature. The product was sonicated in absolute ethanol, washed with absolute ethanol three times with the help of a magnet, and finally stored in absolute ethanol for later use. Weigh 5 mmol sodium tungstate into a beaker, add deionized water and stir to dissolve for 10 min, adjust the pH of the solution to 4.5 with dilute sulfuric acid, put it into a 50 ml liner, add the spare Fe 3 o 4 , put the inner liner into the reaction kettle, react in an oven at 160 °C for 4 days, take out the oven an...

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Abstract

The invention discloses a method for preparing regular petal-shaped WO3 / Fe2O3, and relates to a method for preparing WO3 / Fe2O3, which comprises the following steps: by taking hydrazine hydrate, methylbenzene, ferric acetylacetonate, oleic acid and sodium tungstate as main raw materials, adding an acidic solution to adjust the pH value, putting into a reaction kettle at 130 DEG C, taking out the solution after 24 hours, cooling at room temperature, adding ethanol into the obtained product Fe3O4, carrying out ultrasonic treatment, cleaning with ethanol under the help of a magnet, and drying to obtain the regular petal-shaped WO3 / Fe2O3. And storing in ethanol for later use. Taking 5 mmol of sodium tungstate, putting the sodium tungstate into a reaction kettle lining, stirring and dissolving, adjusting the pH value to be about 4.5 by using an acid solution, adding Fe3O4 soaked in ethanol, reacting at 160 DEG C for 96 hours, taking out the solution, cooling at room temperature, centrifugally cleaning the obtained product by using deionized water, putting into a drying oven for vacuum drying at 65 DEG C, and grinding the treated solid in an agate mortar to obtain the final product WO3 / Fe2O3. The WO3 / Fe2O3 prepared by the invention has the characteristics of small size, uniform morphology, high yield, low cost, simple synthesis process, environmental friendliness, no toxicity, excellent chemical stability, magnetism and the like, and has wide application prospects.

Description

technical field [0001] The present invention relates to a kind of preparation WO 3 / Fe 2 o 3 Method, especially relates to a kind of preparation regular petal-shaped WO 3 / Fe 2 o 3 method. Background technique [0002] WO 3 Composite material as a low bandgap photocatalytic candidate material, it has the popular material TiO 2 Incomparable high adsorption capacity, high thermal stability and high physical stability in the visible light spectrum range, the magnetic particles formed after compounding iron oxide have advantages in photocatalytic degradation of dyes. Magnetic materials can be used to simply separate magnetic material / catalyst composites from purified water using magnets, which has high application prospects in water treatment, degradation of dyes, and recovery of photocatalysts. [0003] Currently, the preparation of WO 3 / Fe 2 o 3 There are many methods for composite materials, and the most common methods are the preparation of Fe by new combustion m...

Claims

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Application Information

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IPC IPC(8): B01J23/888B01J35/02
CPCB01J23/888B01J35/00B01J35/30B01J35/33B01J35/39
Inventor 曹旋刘利鑫王凯徐曼
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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