Hardened porous electrode of TiO2-C catalytic material as well as preparation method and application of hardened porous electrode

A technology of porous electrodes and catalytic materials, applied in chemical instruments and methods, oxidized water/sewage treatment, special compound water treatment, etc., can solve the problems of weak acid and alkali resistance, fragility, and low porosity of electrodes, and achieve Increase the specific surface area, enhance the strength, and enhance the effect of acid and alkali resistance

Pending Publication Date: 2019-04-09
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the electrode uses organic glue as a binder and is compacted by physical methods, the electrode still has weak acid and alkali resistance, low porosity, and is easily broken when treating organic wastewater.

Method used

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  • Hardened porous electrode of TiO2-C catalytic material as well as preparation method and application of hardened porous electrode
  • Hardened porous electrode of TiO2-C catalytic material as well as preparation method and application of hardened porous electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of TiO 2 The preparation method of -C catalytic material hardened porous electrode, comprises steps as follows:

[0051] (1) TiO 2 Preparation of -C catalytic material

[0052] Add 15mL of butyl titanate to 45mL of absolute ethanol, stir magnetically for 10min, add 5g of pretreated graphite powder to make solution A; add 6mL of deionized water and 1.2mL of nitric acid to 45mL of absolute ethanol to make solution B solution; add solution B to solution A drop by drop until the reaction system becomes an immobile gel system to obtain a gel; place the gel in a blast dryer and dry at a constant temperature of 105°C for 8 hours until the organic solvent is completely Volatilize to get a gray-black powder, which is ground into an ultrafine powder; put the powder in a muffle furnace and calcinate at 450°C for two hours to get TiO 2 -C catalytic material;

[0053] (2) Preparation of powder mixture

[0054] 39.8g of cement, 31.84g of TiO 2 -C catalytic material (mass...

Embodiment 2

[0058] TiO as described in Example 1 2 -C Catalytic material hardened porous electrode preparation method, the difference is:

[0059] The amount of activated carbon added in step (3) is 358.2g (the mass ratio of cement to cement is 9:1) equal to the volume of stones, and other conditions are the same.

Embodiment 3

[0061] TiO as described in Example 1 2 -C Catalytic material hardened porous electrode preparation method, the difference is:

[0062] The amount of activated carbon added in step (3) is 318.4g (the mass ratio to cement is 8:1) equal to the volume of stones, and other conditions are the same.

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Abstract

The invention relates to a hardened porous electrode of a TiO2-C catalytic material as well as a preparation method and application of the hardened porous electrode. The electrode comprises a TiO2-C catalytic material, a binder and activated carbon; the TiO2-C catalytic material is uniformly mixed with a binder, activated carbon is doped into the TiO2-C catalytic material to form a framework, andan electrode is internally provided with a pore structure. The TiO2-C composite catalytic material is combined with activated carbon, the catalytic material with the same surface area is reduced, andthe usage amount of the TiO2-C composite catalytic material is greatly reduced, so that the cost of the catalytic material is greatly reduced, meanwhile, the good catalytic performance is still kept,the recycle of an electrode material can also be realized, and the reusability is good.

Description

technical field [0001] The present invention relates to a hardened porous TiO 2 The invention relates to an electro-Fenton-like working cathode activated by electrocatalysis of a -C composite material and a preparation method and application thereof, belonging to the technical field of sewage treatment. Background technique [0002] As an environmentally friendly advanced oxidation technology, electro-fenton can efficiently treat organic pollutants that are difficult to biodegrade. For example, the wastewater discharged during the production process of the pharmaceutical industry has the characteristics of high toxicity, high concentration of pollutants and refractory biodegradation, making it difficult to treat. Nowadays, traditional physical methods and biological methods are difficult to meet the indicators required for the quality of discharged wastewater. Therefore, in recent years, water treatment technology has gradually shifted to chemical methods, which degrade an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/72C02F101/30
CPCC02F1/46109C02F1/4672C02F2001/46142C02F2101/30C02F2305/026
Inventor 高明明李会娟李云涛刘子萧王新华
Owner SHANDONG UNIV
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