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Preparation method and application of Ag/AgBr@TiO2/CA electrode

An electrode and the resulting technology are applied in battery electrodes, magnetic field/electric field water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., and can solve the problems of ineffective use of microorganisms, secondary pollution, high voltage, etc. Achieve the effect of improving photocatalytic performance, reducing energy consumption and increasing specific surface area

Inactive Publication Date: 2011-10-05
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional photocatalytic sterilization using photocatalyst as the medium cannot effectively use the visible light in sunlight to achieve photocatalytic killing of microorganisms, and it will also cause secondary pollution, which is not an environmentally friendly technology
The electrochemical sterilization method often requires a higher voltage and consumes more energy.

Method used

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  • Preparation method and application of Ag/AgBr@TiO2/CA electrode
  • Preparation method and application of Ag/AgBr@TiO2/CA electrode
  • Preparation method and application of Ag/AgBr@TiO2/CA electrode

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Ag / AgBr@TiO 2 / CA electrode preparation

[0035] (1) In a cylindrical glass mold with a diameter of 1 cm and a length of 20 cm, add resorcinol (77.08 g), formaldehyde (42 g), sodium carbonate (0.07 g) and water (220.5g), leave standstill to obtain phenolic resin, the rod-shaped phenolic resin obtained is carried out solvent replacement in acetone (surface tension is less than 30m N / m), the water molecule in its network structure is replaced by organic reagent , the time is 6 days, and the organic reagent is replaced every 1 day; then after drying at room temperature, the temperature is programmed to 900 ° C in a tube furnace and kept for 4 hours for carbonization to obtain a rod-shaped carbon aerogel;

[0036](2) Stir butyl titanate (40mL), absolute ethanol (120mL) and acetylacetone (4mL) with a volume ratio of 1:3:0.1 with a magnetic stirrer for 30min, and then add dropwise a volume ratio of 1:4: A mixed solution of 20 nitric acid (2mL), deionized water (8mL) and abs...

Embodiment 2

[0043] Ag / AgBr@TiO 2 / CA electrode preparation

[0044] (1) In a cylindrical glass mold with a diameter of 1 cm and a length of 20 cm, add resorcinol (77.08 g), formaldehyde (42 g), sodium carbonate (0.35 g) and water (220.5g), leave standstill to obtain phenolic resin, the rod-shaped phenolic resin obtained is carried out solvent replacement in acetone (surface tension is less than 30m N / m), the water molecule in its network structure is replaced by organic reagent , the time is 6 days, and the organic reagent is replaced every 1 day; then after drying at room temperature, the temperature is programmed to 900 ° C in a tube furnace and kept for 4 hours for carbonization to obtain a rod-shaped carbon aerogel;

[0045] (2) Stir butyl titanate (40mL), absolute ethanol (120mL) and acetylacetone (20mL) with a volume ratio of 1:3:0.5 with a magnetic stirrer for 30min, and then add dropwise a volume ratio of 1:4: 30 of nitric acid (2mL), deionized water (8mL) and absolute ethanol (...

Embodiment 3

[0051] Ag / AgBr@TiO 2 / CA electrode preparation

[0052] (1) In a cylindrical glass mold with a diameter of 1 cm and a length of 20 cm, add resorcinol (77.08 g), formaldehyde (42 g), sodium carbonate (0.21 g) and water (220.5g), leave standstill to obtain phenolic resin, the rod-shaped phenolic resin obtained is carried out solvent replacement in acetone (surface tension is less than 30m N / m), the water molecule in its network structure is replaced by organic reagent , the time is 6 days, and the organic reagent is replaced every 1 day; then after drying at room temperature, the temperature is programmed to 900 ° C in a tube furnace and kept for 4 hours for carbonization to obtain a rod-shaped carbon aerogel;

[0053] (2) Stir butyl titanate (40mL), absolute ethanol (120mL) and acetylacetone (12mL) with a volume ratio of 1:3:0.3 with a magnetic stirrer for 30min, and then add dropwise a volume ratio of 1:4: 25 of nitric acid (2mL), deionized water (8mL) and absolute ethanol (...

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Abstract

The invention belongs to the technical field of preparation of cell electrodes and discloses a preparation method and application of a Ag / AgBr@TiO2 / CA electrode. The preparation method of the Ag / AgBr@TiO2 / CA electrode comprises the steps of preparing carbon aerogel; preparing butyl titanate sol gel; loading and calcining the butyl titanate sol gel; and loading and calcining Ag / AgBr. The invention also discloses an application of the prepared Ag / AgBr@TiO2 / CA electrode to water treatment. The Ag / AgBr@TiO2 / CA electrode prepared by the invention has the advantages of high porosity, large specific area, high conductivity, controllable appearance and the like and also has good photoctalytic activity and sterilization performance.

Description

technical field [0001] The invention belongs to the technical field of preparation of battery electrodes, in particular to an Ag / AgBr@TiO 2 / CA electrode preparation method and its application. Background technique [0002] The global population is growing rapidly and industry is developing rapidly. On the one hand, the human demand for water resources is increasing at an alarming rate; on the other hand, the increasingly serious water pollution erodes a large amount of water resources that can be used for consumption. Many countries in the world are facing a water resource crisis. The deterioration of ecosystems and the destruction of biodiversity brought about by the water resource crisis will also seriously threaten the survival of human beings. Water environmental pollution will inevitably lead to the decline of water quality, and the increase of trace or trace chemical pollutants in drinking water will cause great harm to human health. The safety of drinking water is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88C02F1/48C02F1/30C02F1/50
CPCY02E60/50Y02W10/37
Inventor 赵国华王亚波金宇宁吴梅芬
Owner TONGJI UNIV
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