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Preparation method of nano oxide thin-film electrode for treating ammonia nitrogen wastewater

A nano-oxide and thin-film electrode technology, which is applied in the field of environmental engineering, can solve the problems of restricting photocatalytic technology and the difficulty of photocatalyst fixation, and achieve the effects of simple preparation process, good cleaning effect and low energy consumption

Active Publication Date: 2016-06-22
上海纳晶科技有限公司
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to fix the photocatalyst on the electrode, which still restricts the practical application of photocatalytic technology to a certain extent.
Add low-temperature glass powder to the photocatalyst, and after annealing, the photocatalyst can be firmly fixed on the surface of FTO conductive glass, which is rarely reported in the literature

Method used

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  • Preparation method of nano oxide thin-film electrode for treating ammonia nitrogen wastewater
  • Preparation method of nano oxide thin-film electrode for treating ammonia nitrogen wastewater
  • Preparation method of nano oxide thin-film electrode for treating ammonia nitrogen wastewater

Examples

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example 1

[0058] Wastewater indicators: ammonia nitrogen 280mg / L, chloride ion concentration 0.5mol / L, TDS 8500mg / L, pH 6.7.

[0059] Tetrabutyl titanate and absolute ethanol are prepared in a volume ratio of 1:1 to prepare solution A; to ammonium fluoride ethanol solution with a mass fraction of 10%, add acetic acid in a volume ratio of 3:1, press Add concentrated hydrochloric acid at a volume ratio of 30:1 to prepare solution B; slowly add solution B to solution A dropwise to prepare a gel; dry the gel at 100°C and grind it evenly, then anneal at 600°C treatment to obtain fluorine-doped titanium dioxide nanoparticles; cut the FTO conductive glass into a size of 10×10cm; after cleaning, dry it at 100°C for use; mix turpentine oil with alcohol and ethyl cellulose in a ratio of 20:1 Stir in a beaker at 100°C until ethyl cellulose is completely dissolved in turpentine through alcohol; mix low-temperature glass powder and fluorine-doped titanium dioxide in a mass ratio of 1:2; add an appro...

example 2

[0061] Wastewater indicators: ammonia nitrogen 70mg / L, TDS 6200mg / L, pH 7.1.

[0062] Tetrabutyl titanate and absolute ethanol are prepared in a volume ratio of 1:2 to prepare solution A; to the ammonium fluoride ethanol solution with a mass fraction of 15%, add acetic acid in a volume ratio of 2:1, and press Add concentrated hydrochloric acid at a volume ratio of 60:1 to prepare solution B; slowly add solution B to solution A dropwise to prepare a gel; dry the gel at 100°C and grind it evenly, then anneal at 500°C treatment to obtain fluorine-doped titanium dioxide nanoparticles; cut the FTO conductive glass into a size of 5 × 5cm; after cleaning, dry it at 110°C for use; mix turpentine oil with alcohol and ethyl cellulose in a ratio of 20:1 In a beaker, stir at 100°C until the ethyl cellulose is completely dissolved in turpentine and alcohol. Mix the low-temperature glass powder and fluorine-doped titanium dioxide according to the mass ratio of 1:3; add an appropriate amoun...

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Abstract

The invention relates to the technical field of environmental engineering, particularly a preparation method of a nano oxide thin-film electrode for treating ammonia nitrogen wastewater. The preparation method of the nano oxide thin-film electrode for treating ammonia nitrogen wastewater is characterized by comprising the following steps: 1. preparing fluorine-doped titanium dioxide nanoparticles; 2. pretreating FTO (fluorine-doped tin oxide) conducting glass; 3. preparing a turpentine alcohol-permeable adhesive; 4. preparing a fluorine-doped titanium dioxide electrode film matrix; 5. preparing a fluorine-doped titanium dioxide thin-film electrode; and 6. establishing a photoelectric catalytic thin-film electrode set. Compared with the prior art, the preparation technique is simple, and can easily implement large-scale production; the nano oxide thin-film electrode has favorable removal effects on most ammonia nitrogen wastewater, and can not generate other harmful substances in the treatment process, thereby avoiding secondary pollution; and in the electrode set sewage treatment process, only a certain electric energy is needed as the bias and light source, so the energy consumption is low.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a preparation method of a nano-oxide film electrode for treating ammonia nitrogen wastewater. Background technique [0002] At present, among many environmental pollution problems, water resource pollution has been paid more and more attention by people. Among them, water pollution caused by eutrophication is the most serious. Eutrophication of water is a pollution phenomenon in which algae and other plankton rapidly multiply due to the enrichment of nitrogen and phosphorus nutrients in the water body, which reduces the dissolved oxygen content of the water body and causes the decline or even extinction of algae, plankton, plants and fish. At present, the technology widely used in ammonia nitrogen wastewater treatment is mainly nitrification and denitrification technology based on activated sludge method, but this technology requires facilities such as anaerobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30C02F1/72B01J21/06
CPCY02W10/37C02F1/30B01J21/066C02F1/725C02F2305/10
Inventor 孙卓刘冬聂耳张哲娟李欣田人文
Owner 上海纳晶科技有限公司
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