Activated carbon-loaded cuprous oxide photocatalyst and preparation method thereof

A photocatalyst, cuprous oxide technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc. Inexpensive, easy-to-operate, high-efficiency removal

Inactive Publication Date: 2012-07-18
HUAIBEI NORMAL UNIVERSITY +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Catalytic wet oxidation is a treatment technology for organic wastewater developed internationally in the 1980s, but it is expensive, which greatly limits its application

Method used

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  • Activated carbon-loaded cuprous oxide photocatalyst and preparation method thereof
  • Activated carbon-loaded cuprous oxide photocatalyst and preparation method thereof
  • Activated carbon-loaded cuprous oxide photocatalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Activated carbon supported cuprous oxide photocatalyst and preparation method

[0027] (1) Immerse activated carbon with 3mol / L ammonia solution and stir for 24 hours, then filter, wash with distilled water until neutral;

[0028] (2) The activated carbon treated in step (1) was treated with 5mol / L HNO 3 The solution was impregnated and stirred for 24 hours, then filtered, washed with distilled water until neutral, put in an oven, dried at 110°C, and set aside;

[0029] (3) Weigh 5g of pretreated activated carbon and impregnate it in 50mL of 0.04mol / L CuSO 4 In the solution, soak for 24 hours in a constant temperature culture shaker with a rotation speed of 90 rpm and a temperature of 25° C., and then filter.

[0030] (4) The activated carbon that step (3) is obtained is transferred to the carbon dioxide containing 0.2g C 6 h 12 o 6 50mL NaOH (0.05mol / L) solution, and then placed in a constant temperature culture shaker at a temperature of 30°C and a rotation speed...

Embodiment 2

[0033] Steps (1) and (2) are the same as implementation method 1;

[0034] (3) Weigh 5g of pretreated activated carbon and impregnate it in 0.2mol / L CuSO 4 In the solution, soak for 24 hours in a constant temperature culture shaker with a rotation speed of 90 rpm and a temperature of 25° C., and then filter.

[0035] (4) The activated carbon that step (3) is obtained is transferred to the carbon dioxide containing 0.6g C 6 h 12 o 6 50mL NaOH (0.2mol / L) NaOH solution, and then placed in a constant temperature culture shaker at a temperature of 30°C and a rotation speed of 90rpm for 24h, filtered to obtain the product, and washed until neutral.

[0036] (5) The load Cu obtained in step (4) 2 O activated carbon was transferred to a vacuum drying oven at 80 °C for 3 h to obtain a 5% cuprous oxide photocatalyst supported on activated carbon.

Embodiment 3

[0038] Steps (1) and (2) are the same as implementation method 1;

[0039] (3) Take 5g of activated carbon treated in step (2), 50mL of 0.2mol / L CuSO 4 with 50mL 0.05 mol / L Na 2 SO 3 Place in a 500 mL beaker for reaction, add 300 mL pH=5 HAc-NaAc buffer solution and 0.1 g glucose, react at 70°C for 3 hours or microwave for 30 minutes, filter to obtain the product, and wash until neutral.

[0040] (4) The load Cu obtained in step (3) 2 O activated carbon was transferred to a vacuum drying oven at 80 °C for 3 h to obtain a 1% cuprous oxide photocatalyst supported on activated carbon.

[0041] An example of treating wastewater such as phenols with activated carbon-supported cuprous oxide photocatalysts.

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Abstract

The invention provides an activated carbon-loaded cuprous oxide photocatalyst which can be used as a photocatalyst for degrading the organic pollutant such as phenols and purifying the air, wherein a preparation method of the activated carbon-loaded cuprous oxide photocatalyst comprises the following steps of: dipping the treated activated carbon in copper sulfate solution, and reducing by C6O12O6 or Na2SO3. The invention has the beneficial effects that the preparation of the activated carbon-loaded cuprous oxide photocatalyst takes copper sulfate as raw material, takes the activated carbon as a carrier, and loads the cuprous oxide on the activated carbon, so that the photocatalyst is simple in preparation method, low in cost, good in stability, and high in photocatalytic activity. The photocatalyst can be directly used for catalytically oxidizing the waste water such as the phenols and purifying the indoor air under an ultraviolet-visible light condition, so that the method is easy to operate, mild in reaction condition, and high in pollutant removing ratio.

Description

technical field [0001] The invention relates to an activated carbon-loaded photocatalyst and a preparation method thereof. The catalyst is suitable for treating wastewater such as dyes and purifying indoor polluted air. Background technique [0002] my country is the largest country in the production and consumption of dyestuffs, and the pollution of dyestuffs and printing and dyeing wastewater is large and widespread. Dye and printing and dyeing wastewater has the characteristics of large water volume, high chroma, complex chemical composition, and difficult biochemical degradation. It is one of the industrial wastewater that is difficult to treat. BOD, COD, organic toxic substances and chromaticity are the main pollutants in this kind of wastewater. If these pollutants are discharged with wastewater without treatment or improper treatment, they will cause serious pollution to water bodies. Usually, dyestuffs and printing and dyeing wastewater generally adopt the physicoch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72C02F1/72C02F1/30B01D53/86
CPCY02W10/37
Inventor 王广健徐敬东訾言勤管家乡郭亚杰高晓燕张茂林李石擎
Owner HUAIBEI NORMAL UNIVERSITY
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