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A 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 changing the way of use

Active Publication Date: 2018-03-09
上海纳晶科技有限公司
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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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  • A preparation method of nano-oxide thin film electrode for treating ammonia nitrogen wastewater
  • A preparation method of nano-oxide thin film electrode for treating ammonia nitrogen wastewater
  • A preparation method of nano-oxide thin film electrode for treating ammonia nitrogen wastewater

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example 1

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

example 2

[0061] Wastewater indicators: ammonia nitrogen 70 mg / L, TDS 6200 mg / 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%, acetic acid is added in a volume ratio of 2:1, 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 am...

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Abstract

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. A preparation method of a nano-oxide film electrode for treating ammonia nitrogen wastewater, characterized in that: the preparation method is as follows, step 1, preparation of fluorine-doped titanium dioxide nanoparticles; step 2, pretreatment of FTO conductive glass; step 3 , preparation of turpentine permeating alcohol binder; step 4, preparation of fluorine-doped titanium dioxide electrode film substrate; step 5, preparation of fluorine-doped titanium dioxide film electrode; step 6, construction of photoelectrocatalytic thin film electrode group. Compared with the existing technology, the preparation process is simple, and it is easy to realize large-scale production; it has a good removal effect on most ammonia nitrogen wastewater, and at the same time, no other harmful substances are produced during the treatment process, and no secondary pollution is caused; the electrode module In the sewage treatment process, only a certain amount of electric energy needs to be provided as a bias voltage and light source, and the energy consumption is small.

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 Patents(China)
IPC IPC(8): C02F1/30C02F1/72B01J21/06
CPCY02W10/37
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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