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Application of Co-Ge-O photocatalysis-adsorption bifunctional material

A dual-functional material and photocatalytic technology, applied in the field of environmental pollution control, can solve problems such as low adsorption capacity and low catalytic activity of visible light, achieve the effect of improving activity, solving low activity, and facilitating popularization and application

Inactive Publication Date: 2019-04-12
CHONGQING THREE GORGES UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a new application of Co-Ge-O photocatalytic-adsorption dual-functional materials in the field of environmental governance, thereby broadening its application range and solving the visible light catalytic activity of existing commercial photocatalytic materials on organic dye pollutants Low, low adsorption capacity and other issues

Method used

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  • Application of Co-Ge-O photocatalysis-adsorption bifunctional material

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Embodiment 1

[0020] (1) Preparation of Co-Ge-O material

[0021] Dissolve 0.06 g of NaOH (1.5 mmol) in 30 mL of deionized water, and then take 0.11 g (1 mmol) of GeO 2 In the above NaOH solution, after stirring until the solution is clear, add 0.58 g (2 mmol) of Co(NO 3 ) 2 ·6H 2 O. After stirring for 10 minutes, it was transferred into a polytetrafluoroethylene reactor with a volume of 40 mL, and stood at 180°C for 6 hours. Cool naturally, centrifuge, wash with deionized water three times, and dry at 60°C for 10 h to obtain samples.

[0022] (2) Characterization of Co-Ge-O materials

[0023] Depend on figure 1 The EDS element analysis results of the SEM images in the middle show that the Co-Ge-O sample contains Co, Ge and O elements, indicating that Co-Ge-O was successfully prepared.

[0024] (3) Co-Ge-O material adsorption-photocatalytic degradation activity evaluation of RhB and MB dye pollutants

[0025] The obtained Co-Ge-O samples were respectively used RhB and MB as degradat...

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Abstract

The invention discloses an application of a Co-Ge-O photocatalysis0adsorption bifunctional material. As a bifunctional material, Co-Ge-O not only can adsorb organic dye pollutants, but also can degrade the organic dye pollutants under visible light, thereby widening the application range of the material. The adsorption performance and photocatalytic degradation performance under visible light of Co-Ge-O material for organic dyes are much higher than those of commercial titanium dioxide (P25) photocatalytic materials. The Co-Ge-O material has high adsorption and photocatalytic dye degradation activity, and the preparation method of the material is simple and is beneficial to popularization and application.

Description

technical field [0001] The invention belongs to the technical field of environmental pollution control and relates to the application of Co-Ge-O compound as a dual-functional material in adsorption-photocatalytic degradation of organic dye pollutants. Background technique [0002] With the increase of population, the scale of the printing and dyeing industry in the world is constantly expanding. The large amount of organic dye pollutants discharged by this industry has become an important source of water pollution in the world. Semiconductor photocatalysis technology can directly use sunlight to efficiently oxidize and degrade dye pollutants at room temperature. Therefore, it is a favorable way to control environmental pollution by making full use of sunlight to degrade dye pollutants through photocatalytic technology. Because ultraviolet light only accounts for about 4% of the total energy of sunlight, while visible light accounts for about 46%, so the key to utilizing sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/06B01J20/30B01J23/89C02F1/30C02F101/38C02F101/36C02F101/34C02F101/30
CPCB01J20/06C02F1/30B01J23/8966C02F2101/36C02F2101/38C02F2101/308C02F2101/34C02F2305/10B01J35/39
Inventor 汤建庭李廷真胡雷饶通德张雷
Owner CHONGQING THREE GORGES UNIV
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