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Preparation method and application of CuO/Bi2MoO6 heterojunction photocatalytic material capable of degrading organic matters in response to visible light

A photocatalytic material, heterojunction technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the limitations of semiconductor photocatalysis technology development, solar energy utilization Low efficiency and other problems, to achieve the effect of simple process operation, excellent photocatalytic degradation activity, and short reaction period

Pending Publication Date: 2021-02-09
徐州瑞鑫新材料研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the most studied semiconductor photocatalysts, such as: TiO 2 、BiPO 4 Ultraviolet light response materials (ultraviolet light only accounts for about 5% of the solar spectrum), due to the low efficiency of solar energy utilization, has largely limited the development of semiconductor photocatalysis technology. Therefore, the development of new and efficient visible light responsive semiconductor light Catalyst is a hot spot in the field of photocatalysis research

Method used

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  • Preparation method and application of CuO/Bi2MoO6 heterojunction photocatalytic material capable of degrading organic matters in response to visible light
  • Preparation method and application of CuO/Bi2MoO6 heterojunction photocatalytic material capable of degrading organic matters in response to visible light
  • Preparation method and application of CuO/Bi2MoO6 heterojunction photocatalytic material capable of degrading organic matters in response to visible light

Examples

Experimental program
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Effect test

Embodiment 1

[0022] (1): Dissolve 9.664g of copper nitrate trihydrate in 30ml of deionized water to prepare 50ml of 6.5M sodium hydroxide solution. Pour the prepared aqueous solution of copper nitrate into sodium hydroxide solution, dissolve it by ultrasonication for 30 minutes to obtain a suspension, then transfer the suspension to a 100ml reaction kettle, react in an oven at 140°C for 24 hours, and finally wash with water, filter and dry to obtain Copper(I) oxide.

[0023] (2): 9.664g of copper nitrate trihydrate was weighed again and dissolved in 30ml of deionized water to prepare 50ml of 6.5M sodium hydroxide solution. Weigh 0.2784g of copper oxide (I) and dissolve it in sodium hydroxide solution, sonicate for 30 minutes to obtain mixed solution A, pour the prepared copper nitrate aqueous solution into mixed solution A, and ultrasonically obtain mixed solution B for 30 minutes, transfer the obtained mixed solution Put it into a 100ml reaction kettle, react in an oven at 140°C for 24 h...

Embodiment 2

[0027] (1): Dissolve 6.819g copper chloride dihydrate in 30ml deionized water to prepare 50ml of 6.5M sodium hydroxide solution. Pour the prepared aqueous solution of copper nitrate into sodium hydroxide solution, dissolve it by ultrasonication for 30 minutes to obtain a suspension, then transfer the suspension to a 100ml reaction kettle, react in an oven at 140°C for 24 hours, and finally wash with water, filter and dry to obtain Copper(I) oxide.

[0028] (2): 6.819g of copper chloride dihydrate was weighed again and dissolved in 30ml of deionized water to prepare 50ml of 6.5M sodium hydroxide solution. Weigh 0.2784g of copper oxide (I) and dissolve it in sodium hydroxide solution, sonicate for 30 minutes to obtain mixed solution A, pour the prepared copper chloride aqueous solution into mixed solution A, and ultrasonically obtain mixed solution B for 30 minutes, and mix the obtained mixed solution Transfer to a 100ml reaction kettle, react in an oven at 140°C for 24 hours, ...

Embodiment 3

[0032] (1): Dissolve 9.664g of copper nitrate dihydrate in 30ml of deionized water to prepare 50ml of 6.5M sodium hydroxide solution. Pour the prepared aqueous solution of copper nitrate into sodium hydroxide solution, dissolve it by ultrasonication for 30 minutes to obtain a suspension, then transfer the suspension to a 100ml reaction kettle, react in an oven at 140°C for 24 hours, and finally wash with water, filter and dry to obtain Copper(I) oxide.

[0033] (2): 9.664g of copper nitrate dihydrate was weighed again and dissolved in 30ml of deionized water to prepare 50ml of 6.5M sodium hydroxide solution. Weigh 0.2784g of copper oxide (I) and dissolve it in sodium hydroxide solution, sonicate for 30 minutes to obtain mixed solution A, pour the prepared copper nitrate aqueous solution into mixed solution A, and ultrasonically obtain mixed solution B for 30 minutes, transfer the obtained mixed solution Put it into a 100ml reaction kettle, react in an oven at 140°C for 24 hou...

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Abstract

The invention provides a preparation method and application of a CuO / Bi2MoO6 heterojunction photocatalytic material capable of degrading organic matters in response to visible light. The heterojunction photocatalytic material uses sodium molybdate, bismuth nitrate, copper oxide and CTAB as raw materials, CuO / Bi2MoO6 heterojunction photocatalysts with different molar ratios are prepared by using ahydrothermal method; and the degradation effect of the CuO / Bi2MoO6 heterojunction photocatalysts on an organic pollutant, namely rhodamine B (30 mg / L) under the irradiation of visible light are respectively investigated under the condition of the same catalyst amount (15 mg), and a photocatalysis result shows that the photocatalytic activity of the CuO / Bi2MoO6 heterojunction photocatalyst preparedby compounding a small amount of copper oxide and bismuth molybdate can be remarkably improved.

Description

technical field [0001] The invention belongs to the field of semiconductor material preparation and photocatalysis, in particular to a preparation method and application of a CuO / Bi2MoO6 heterojunction photocatalytic material that degrades organic matter in response to visible light. Background technique [0002] In recent years, semiconductor photocatalysis technology has been extensively studied because of its advantages of high efficiency, energy saving, and thorough pollutant degradation. Because it can degrade and eliminate organic wastewater by utilizing solar energy to the greatest extent, photocatalysis technology is considered to be the current solution to water pollution. Ideal way. This technology uses semiconductor photocatalysts to generate photogenerated electron-hole pairs with high redox ability under the irradiation of a specific light source to achieve efficient degradation of organic pollutants. However, the most studied semiconductor photocatalysts, such...

Claims

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Application Information

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IPC IPC(8): B01J23/887C02F1/30C02F101/38
CPCB01J23/8876C02F1/30C02F2305/10C02F2101/38B01J35/39
Inventor 王成李文江吕桂财潘松楠
Owner 徐州瑞鑫新材料研究院有限公司
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