A preparation method of palladium-cellulose membrane capable of simultaneous emulsion separation and dye degradation

A cellulose membrane and emulsion separation technology, applied in chemical instruments and methods, semi-permeable membrane separation, membranes, etc., can solve problems such as poor oil-water emulsion separation performance, easy aggregation of palladium nanoparticles, and rapid decline in membrane flux. To achieve the effect of abundant reserves, easy recycling and increased recycling

Active Publication Date: 2022-02-22
NORTHEAST FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problem that palladium nanoparticles are easy to agglomerate and lead to performance decline, the existing oil-water emulsion has poor separation performance, and the membrane flux decreases rapidly during use, and provides a palladium-cellulose that can synchronize emulsion separation and dye degradation Membrane Preparation Method

Method used

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  • A preparation method of palladium-cellulose membrane capable of simultaneous emulsion separation and dye degradation
  • A preparation method of palladium-cellulose membrane capable of simultaneous emulsion separation and dye degradation
  • A preparation method of palladium-cellulose membrane capable of simultaneous emulsion separation and dye degradation

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specific Embodiment approach 1

[0028] Specific embodiment one: a kind of preparation method of the palladium-cellulose membrane that can synchronize emulsion separation and dyestuff degradation in this embodiment, it is carried out according to the following steps:

[0029] 1. Preparation of cellulose membrane:

[0030] sandwiching the support membrane in the separation device, then pouring the cellulose dispersion with a mass percentage of 0.5% to 2% onto the support membrane of the separation device, and suction filtering to obtain the cellulose membrane;

[0031] 2. Loaded palladium particles:

[0032] immersing the cellulose membrane in an aqueous palladium source solution, heating at a temperature of 45°C to 65°C for 5h to 6h, to obtain a cellulose membrane loaded with palladium particles;

[0033] The mass percentage of the palladium source in the palladium source aqueous solution is 0.01% to 0.1%;

[0034] 3. Drying:

[0035] The cellulose membrane loaded with palladium particles is dried to compl...

specific Embodiment approach 2

[0047] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the supporting membrane described in step 1 is a PVDF membrane. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0048] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the palladium source aqueous solution described in step two is palladium chloride aqueous solution. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method of a palladium-cellulose membrane capable of simultaneous emulsion separation and dye degradation, and relates to a preparation method of a palladium-cellulose membrane. The invention aims to solve the problems that palladium nanoparticles are easy to agglomerate and lead to performance decline, the separation performance of the existing oil-water emulsion is not good, and the membrane flux decreases rapidly during use. Preparation method: 1. preparing cellulose film; 2. loading palladium particles; 3. drying. The invention is used for the preparation method of the palladium-cellulose membrane capable of synchronous emulsion separation and dye degradation.

Description

technical field [0001] The invention relates to a preparation method of palladium-cellulose membrane. Background technique [0002] With the development of technology and industry, toxic organic pollutants pose a threat to the water environment due to their difficulty in removal and degradation. Organic dyes and organic oils are notorious as typical organic pollutants. Recently, many efforts have been made to treat these water bodies containing such pollutants. The conventional physical and chemical methods of adsorption or reverse osmosis to remove organic dyes only involve the phase transfer of pollutants and cannot degrade organic dyes. In contrast, the preferred method for detoxification of organic dyes is in NaBH 4 They are converted into non-toxic compounds by catalytic reduction in the presence of reducing agents. Palladium nanoparticles (PdNPs) have good catalytic properties for the reduction of organic dyes. However, the key issues in the nanoparticle form are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D71/10C02F101/30C02F101/32C02F103/30
CPCC02F1/44C02F1/40C02F1/00B01D71/10B01D69/10B01D69/12B01D67/0079B01J31/06C02F2103/30C02F2101/308C02F2101/32B01D2325/10
Inventor 王成毓于倩倩
Owner NORTHEAST FORESTRY UNIVERSITY
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