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BiOCl material preparation method and application of BiOCl material

A raw material and size technology, applied in the field of BiOCl material preparation, can solve problems such as high cost and complex synthesis process, and achieve the effects of mild process conditions, simple preparation process and high purity

Active Publication Date: 2018-08-17
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the synthesis process of these methods is complex and costly

Method used

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  • BiOCl material preparation method and application of BiOCl material
  • BiOCl material preparation method and application of BiOCl material
  • BiOCl material preparation method and application of BiOCl material

Examples

Experimental program
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Effect test

Embodiment 1

[0030] (1) 2mmol sodium bismuthate, 1mmol metal bismuth powder, 2mmol potassium chloride, and 0.01mmol polyvinylpyrrolidone are mixed uniformly to obtain a raw material mixture; the raw material mixture and corundum grinding balls are added to the ball mill tank at a mass ratio of 1:50, Nitrogen was introduced, ball milling was carried out at a speed of 1500rpm for 8 hours, the mixture after ball milling was heat-treated at a constant temperature at 200°C for 5 hours, and then the heat-treated product was washed with deionized water and absolute ethanol to remove impurities, and solid-liquid separation was carried out by filtration. Finally, the filtered solid product was vacuum-dried at 100° C. for 12 h to prepare the BiOCl material.

[0031] (2) Adopt JEOLJEM-3010 type scanning electron microscope to test the BiOCl material prepared in embodiment 1, such as figure 1 As shown, the BiOCl material is composed of stacked nanosheets with a maximum plane size of 2 μm and a thickne...

Embodiment 2

[0033] (1) Mix 2mmol potassium bismuthate, 2mmol sodium sulfite powder, 1mmol zinc chloride, and 0.005mmol sodium dodecylbenzenesulfonate to obtain a raw material mixture; add the raw material mixture and corundum grinding balls in a mass ratio of 1:100 In the ball mill tank, argon gas was introduced, and the ball mill was carried out at a speed of 1500rpm for 6 hours. The mixture after ball milling was heat-treated at a constant temperature of 300°C for 4 hours, and then the heat-treated product was washed with deionized water and absolute ethanol to remove impurities, and filtered Solid-liquid separation was performed, and finally the filtered solid product was dried at 110° C. for 8 hours to prepare a BiOCl material.

[0034] (2) adopt XRD-6000 type X-ray diffractometer to test the BiOCl material prepared by embodiment 2, such as figure 2 As shown, the crystal phase of the obtained BiOCl product is pure, without other impurity peaks, and the crystallinity is good.

Embodiment 3

[0036] (1) Mix 2mmol sodium bismuthate, 1mmol activated carbon powder, 3mmol sodium chloride, and 0.02mmol cetyltrimethylammonium bromide to obtain a raw material mixture; mix the raw material mixture and stainless steel balls in a mass ratio of 1:60 Add it into a ball mill tank, feed nitrogen, and carry out ball milling at a speed of 1000rpm for 9h. The mixture after ball milling was heat-treated at a constant temperature of 250°C for 7h, and then the heat-treated product was washed with deionized water and absolute ethanol to remove impurities. Solid-liquid separation was performed by filtration, and finally the solid product obtained by filtration was vacuum-dried at 90° C. for 10 h to prepare a BiOCl material.

[0037](2) Adopt TriStar II 3020 type specific surface area and pore size distribution instrument to test the sample material obtained in embodiment 3, as image 3 As shown, the specific surface area of ​​BiOCl material is 20.4m 2 / g.

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Abstract

The invention relates to a BiOCl material preparation method and application of a BiOCl material. The BiOCl material preparation method comprises the following steps of by taking bismuthate, a reducing agent, a chlorine source and a dispersant as raw materials, synchronously applying the mechanical force of high energy ball milling on redox reaction and chlorination reaction, and then performing heat treatment, washing for impurity removal, solid-liquid separation and drying to prepare the BiOCl material. The prepared BiOCl material is formed by a nanosheet with a plan view size being 0.1-5 microns and the thickness being 2-20nm and has the specific surface area of 3-300m<2> / g. The BiOCl material preparation method has the advantages of simpleness in technology, easiness in industrial production, low cost in manufacturing technology, environmental protection and the like; and the prepared BiOCl material has a wide application in the fields of supercapacitors, alkaline rechargeable batteries, lithium ion batteries, photocatalysts, pearlescent pigments, medicines and the like.

Description

technical field [0001] The invention relates to a preparation method and application of a BiOCl material, belonging to the field of new functional materials. Background technique [0002] BiOCl is an important functional material. Due to its unique microstructure and physical and chemical properties, and its non-toxicity and low cost, it has a wide range of potential applications. It has been widely used in electrode active materials, catalysts, pigments, cosmetics, gas Sensors, electronic materials, medical materials and other fields. [0003] The structure and performance of materials are closely related to the preparation process. The current method of preparing ultrafine functional powder can be divided into physical method and chemical method according to the principle. The physical method can produce ultrafine particles whose particle size is easy to control, but the required equipment is expensive; the chemical method is low in cost and easy to adjust the particle s...

Claims

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Application Information

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IPC IPC(8): C01G29/00
CPCC01G29/00C01P2002/72C01P2004/03C01P2004/64C01P2006/12
Inventor 刘恩辉周勇韩秀莉洪伟峰
Owner XIANGTAN UNIV
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