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Preparation method of bismuth oxychloride photocatalyst

A technology of photocatalyst and bismuth oxychloride, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of not improving the reaction efficiency, and achieve easy control of the reaction process, low production cost, and cost saving Effect

Inactive Publication Date: 2018-11-13
董润华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above method not only does not improve the reaction efficiency, but also the reaction conditions mostly adopt a

Method used

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  • Preparation method of bismuth oxychloride photocatalyst
  • Preparation method of bismuth oxychloride photocatalyst

Examples

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Example Embodiment

[0018] Example 1

[0019] The preparation method of the bismuth oxychloride catalyst of the present embodiment includes the following steps: 1) adding 30g of commercially available analytically pure bismuth oxide, 100ml of water and a nodular ink medium into a tank at room temperature, the ball milling speed is 400rpm, and the ball mill is carried out in a planetary ball mill. 6h. Release the slurry and filter the mixed ball-milling medium with a 120-mesh screen, pour the obtained suspension into a beaker, let it stand for 1 hour at room temperature in a vacuum drying oven, pour out the upper layer liquid, and store the remaining material in the beaker at 60°C in a vacuum drying oven Dry under vacuum for 8h to obtain bismuth oxide with a particle size of 160nm, such as figure 1 As shown in the figure, it can be seen from the figure that the particle size of the ground bismuth peroxide is uniform, the surface is smooth, and the particle size is within the range required by the...

Example Embodiment

[0020] Example 2

[0021] The preparation method of the bismuth oxychloride catalyst of the present embodiment includes the following steps: 1) adding 30g of commercially available analytically pure bismuth oxide, 50ml of water and a nodular ink medium into a tank at room temperature, the ball milling speed is 500rpm, and the ball mill is carried out in a planetary ball mill. 10h. Release the slurry and filter the mixed ball-milling medium with a 120-mesh screen, pour the obtained suspension into a beaker, let it stand for 1 hour at room temperature in a vacuum drying oven, pour out the upper layer liquid, and store the remaining material in the beaker at 80°C in a vacuum drying oven Dry under vacuum for 10 h to obtain bismuth oxide with a particle size of 100 nm. 2) Add 1 g of bismuth oxide with a particle size of 100 nm to 25 ml of sodium chloride solution, the concentration of the sodium chloride solution is 0.5 mol / L, and stir at room temperature for 6 hours; 3) First add...

Example Embodiment

[0022] Example 3

[0023] The preparation method of the bismuth oxychloride catalyst of the present embodiment includes the following steps: 1) adding 30g of commercially available analytically pure bismuth oxide, 30ml of water and a nodular ink medium into a tank at room temperature, the ball milling speed is 800rpm, and the ball mill is carried out in a planetary ball mill. 12h. Release the slurry and filter the mixed ball-milling medium with a 120-mesh screen, pour the obtained suspension into a beaker, let it stand for 1 hour at room temperature in a vacuum drying oven, pour out the upper layer liquid, and store the remaining material in the beaker at 80°C in a vacuum drying oven Dry under vacuum for 12 h to obtain bismuth oxide with a particle size of 80 nm. 2) Add 1g of bismuth oxide with a particle size of 80nm to 15ml of sodium chloride solution, the concentration of sodium chloride solution is 2mol / L, and stir at room temperature for 12h; 3) The precipitate obtained ...

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Abstract

The invention discloses a preparation method of a bismuth oxychloride photocatalyst. The preparation method comprises the following steps of mixing and stirring the ground nanometer-level bismuth oxide, sodium chloride and water to react at room temperature, wherein the particle size of the used bismuth oxide is 10 to 500nm; washing the obtained precipitate after reaction by ammonia chloride, deionized water and anhydrous ethyl alcohol, and drying, so as to obtain the bismuth oxychloride photocatalyst. The preparation method has the advantages that the bismuth oxychloride photocatalyst is synthesized by the one-step reaction method at room temperature, the reaction conditions are moderate, the technology process is simple and convenient, and the reaction process is easy to control; the prices of the reaction raw materials are low, the raw materials are easy to obtain, and the production cost is low; any heating equipment is not required in the whole process, the energy consumption is low, and the cost is reduced; the commercial utilization value is realized, the prepared bismuth oxychloride can be widely applied to the industries and fields of environment protection, daily chemicals, coatings, catalysts and the like, and the application prospect is broad in the field of photocatalysis.

Description

technical field [0001] The invention belongs to the technical field of inorganic synthesis, and in particular relates to a preparation method of a bismuth oxychloride photocatalyst. Background technique [0002] Bismuth oxychloride, also known as bismuth oxychloride, has a molecular formula of BiOCl. Bismuth oxychloride is an alkaline bismuth salt. It is a tetragonal silver-white flake-like shiny crystalline powder with a silver-white pearl luster; it is soluble in hydrochloric acid and nitric acid, and insoluble in water. , acetone, tartaric acid and ammonia. It is widely used. First, BiOCl is a new type of high-grade environmentally friendly pearlescent material, non-toxic, and BiOCl itself has the function of absorbing ultraviolet light, making it an important additive raw material in cosmetics. Similarly, BiOCl is also widely used in pearlescent pigments. Secondly, as an emerging photocatalyst, BiOCl's unique layered structure promotes the separation and stable existen...

Claims

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Application Information

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IPC IPC(8): C01G29/00B01J27/10B82Y30/00
CPCC01G29/00B01J27/10B01J35/004B82Y30/00C01P2004/03C01P2004/61C01P2004/64C01P2006/80
Inventor 赵炜廖湘标闫渊陈曦
Owner 董润华
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