Visible light active boron-nickel co-doped titanium dioxide solid solution catalyst and preparation method thereof

A titanium dioxide, photocatalyst technology, applied in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc., can solve unseen problems and achieve great application potential and purity High, easy process effect

Inactive Publication Date: 2009-10-21
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is no patent report on the preparation of boron-nickel co-doped titania catalyst. 2 Catalyst patents are limited to the preparation of N-In co-doping, N-S co-doping, N-Sn co-doping

Method used

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  • Visible light active boron-nickel co-doped titanium dioxide solid solution catalyst and preparation method thereof
  • Visible light active boron-nickel co-doped titanium dioxide solid solution catalyst and preparation method thereof
  • Visible light active boron-nickel co-doped titanium dioxide solid solution catalyst and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0026] Preparation of boron-nickel co-doped titanium dioxide solid solution photocatalyst, the preparation steps are:

[0027] Step 1, using titanium tetrachloride as the raw material, under the condition of stirring, use distilled water at 4°C to prepare a titanium tetrachloride solution, the content of titanium ions in the solution is 5 mmol / L;

[0028] Step 2, in another container, configure boric acid and nickel chloride solution with 4°C distilled water, the content of boric acid in the solution is 5mmol / L; the content of nickel chloride in the solution is 0.5mmol / L;

[0029] Step 3, under the condition that the solution obtained in step 1 is under stirring, pour the solution obtained in step 2 into the solution obtained in step 1, and the volume ratio of the two solutions is 1:1;

[0030] Step 4. Pour the solution obtained in step 3 into a container of an ultrasonic nebulizer, spray and pyrolyze it in an air atmosphere at 500°C, and react for 1 hour;

[0031] Step 5. Af...

Embodiment 2

[0035] Preparation of boron-nickel co-doped titanium dioxide solid solution photocatalyst, the preparation steps are:

[0036] Step 1, using titanium tetrachloride as the raw material, under the condition of stirring, use distilled water at 4°C to prepare a titanium tetrachloride solution, the content of titanium ions in the solution is 20mmol / L;

[0037] Step 2, in another container, configure boric acid and nickel chloride solution with 4°C distilled water, the content of boric acid in the solution is 20mmol / L; the content of nickel chloride in the solution is 2mmol / L;

[0038] Step 3, under the condition that the solution obtained in step 1 is under stirring, pour the solution obtained in step 2 into the solution obtained in step 1, and the volume ratio of the two solutions is 1:1;

[0039] Step 4. Pour the solution obtained in step 3 into a container of an ultrasonic nebulizer, spray and pyrolyze it in an air atmosphere at 600°C, and react for 2 hours;

[0040] Step 5. Af...

Embodiment 3

[0043] Preparation of boron-nickel co-doped titanium dioxide solid solution photocatalyst, the preparation steps are:

[0044] Step 1, using titanium tetrachloride as the raw material, under the condition of stirring, use distilled water at 4°C to prepare a titanium tetrachloride solution, the content of titanium ions in the solution is 10mmol / L;

[0045] Step 2. In another container, configure sodium borohydride and nickel sulfate solutions with 4°C distilled water. The content of sodium borohydride in the solution is 10mmol / L; the content of nickel sulfate in the solution is 1mmol / L;

[0046] Step 3, under the condition that the solution obtained in step 1 is under stirring, pour the solution obtained in step 2 into the solution obtained in step 1, and the volume ratio of the two solutions is 1:1;

[0047] Step 4. Pour the solution obtained in step 3 into a container of an ultrasonic nebulizer, spray and pyrolyze it in an air atmosphere at 700°C, and react for 0.5 hours;

...

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Abstract

The invention relates to visible light active boron-nickel co-doped titanium dioxide solid solution catalyst and a preparation method thereof. The method uses titanium tetrachloride, boron-containing compound and soluble nickel salt as raw materials to prepare the material of the visible light active boron-nickel co-doped titanium dioxide solid solution catalyst by a spray pyrogenation method at a temperature of between 500 and 700 DEG C. The boron-nickel co-doped titanium dioxide solid solution synthesized by the method has high purity, good dispersion, has higher visible light photocatalystic activity, and can be particularly used in the field of environmental pollution treatment. The method has simple process, easily-controlled condition, lower requirement on equipment and low cost, and is convenient for further enlargement of production.

Description

technical field [0001] The invention relates to a visible-light active boron-nickel co-doped titanium dioxide solid solution catalyst and a preparation method, belonging to the field of wet chemical manufacturing of nanometer materials. Background technique [0002] In recent years, as a cheap, stable, non-toxic and good catalytic photocatalyst, TiO 2 It has become a research hotspot in the field of photocatalytic technology. But since TiO 2 It has a wide band gap (3.0-3.2eV), can only be excited by ultraviolet light below 387nm, cannot make full use of solar energy, and the photocatalytic reaction efficiency is not high, which limits its practical application. In order to expand TiO 2 Response to visible light, improve the efficiency of using sunlight, people are interested in TiO 2 A large number of modification studies have been carried out on photocatalysts, such as dye sensitization, noble metal deposition, semiconductor recombination, metal ion and non-metal ion do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755B01J35/08B01J37/08A62D3/17A62D101/45A62D101/47
Inventor 张礼知艾智慧贾法龙黄宇
Owner HUAZHONG NORMAL UNIV
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