Method for degrading methylene blue solution

A methylene blue solution technology, applied in the field of water treatment, can solve problems such as low catalytic efficiency, refractory degradation, and toxicity

Inactive Publication Date: 2016-04-06
QUANZHOU NORMAL UNIV
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  • Application Information

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Problems solved by technology

Industrial wastewater is a major source of water pollution. Methylene blue is a widely used organic dye. It is relatively difficult to degrade, has toxicity, and is relatively harmful to the environment. Hydrogen peroxide (H2O2) is generally used in industry 2 o 2 ) to oxidize methylene

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  • Method for degrading methylene blue solution
  • Method for degrading methylene blue solution
  • Method for degrading methylene blue solution

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Embodiment Construction

[0019] The invention discloses a method for degrading a methylene blue solution, which uses CuO as a catalyst to catalyze the decomposition of the methylene blue solution by hydrogen peroxide. This method is referred to as the HCW method.

[0020] In the present invention, commercial pure CuO powder can be used as CuO.

[0021] As an optimized choice, in the present invention, the CuO adopts a nanostructured CuO thin film. The nano-structured CuO thin film adopts commercial pure Cu as the target material, takes the quartz thin film as the substrate, and uses the magnetron and evaporation coating device to carry out the magnetron sputtering coating.

[0022] In the present invention, the preparation method of the CuO film of nanostructure is as follows:

[0023] (1) Prepare the substrate

[0024] A quartz film with a thickness of 1 mm is used as the substrate, and the substrate needs to be thoroughly cleaned in order to avoid contamination. First use a dust-free cloth and d...

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Abstract

The invention discloses a method for degrading a methylene blue solution. According to the method, CuO is used as a catalyst for catalyze the decomposition of hydrogen peroxide to the methylene blue solution. As an effective catalyst, copper oxide can degrade sewage containing the methylene blue solution in a relatively short time. Furthermore, CuO is a nano-structured CuO membrane which has a large specific surface area and relatively strong base adhesion force and is capable of effectively catalyzing the decomposition of hydrogen peroxide to the methylene blue solution and effectively decoloring the methylene blue solution within 0.5 hour, and 100% degradation efficiency can be achieved within 4 hours; furthermore, the CuO membrane has very high stability and can be repeatedly used.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a method for degrading methylene blue solution. Background technique [0002] Today, harmonious coexistence between man and nature has been put on the agenda. While the economy is developing rapidly, many countries are facing different degrees of environmental problems. Water pollution is a challenge that people have to pay attention to. Industrial wastewater is a major source of water pollution. Methylene blue is a widely used organic dye. It is relatively difficult to degrade, has toxicity, and is relatively harmful to the environment. Hydrogen peroxide (H2O2) is generally used in industry 2 o 2 ) to oxidize methylene blue (C 16 h 18 ClN 3 S) degrades it into a non-toxic and colorless substance, but faces the problem of low catalytic efficiency, so scientists have further explored in order to find a suitable catalyst to improve the oxidation efficiency of hydrogen ...

Claims

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Application Information

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IPC IPC(8): C02F1/72B01J23/72C02F101/38C02F101/36
CPCB01J23/72C02F1/722C02F1/725C02F2101/308C02F2101/36C02F2101/38C02F2101/40Y02W10/37
Inventor 王锋曹伟陈璐蔡洁苏哲元
Owner QUANZHOU NORMAL UNIV
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