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Quantum dot modified iron cobalt oxide and its preparation method and application

A technology of quantum dots and oxides, applied in the field of environmental treatment, can solve problems such as low catalytic efficiency, and achieve the effects of high catalytic efficiency, simple operation and wide temperature range

Active Publication Date: 2021-03-30
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional metal oxide catalysts have the disadvantage of low catalytic efficiency

Method used

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  • Quantum dot modified iron cobalt oxide and its preparation method and application
  • Quantum dot modified iron cobalt oxide and its preparation method and application
  • Quantum dot modified iron cobalt oxide and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A quantum dot modified iron cobalt oxide of the present invention, mainly by iron-containing cobalt Blew Blue analog, benzyl alcohol, cobalt-containing ion organic compound with ammonia water, and heat treatment, iron-containing Cobalt Push Blue Similar The substance is a metal organic frame compound which is mainly made of iron cobalt oxide and the CO loaded on the iron cobalt oxide. 3 O 4 Quantum point consists.

[0040] In this embodiment, the iron-containing Cobalt Blewass Blue enumeration is prepared from the potassium hydrocarbonate solution and the cobalt ion solution.

[0041] In this embodiment, CO 3 O 4 The particle diameter of the quantum dot is 5 nm to 10 nm.

[0042] A method of preparing a quantum point modified iron cobalt oxide in the present embodiment, comprising the steps of:

[0043] S1, a 1L concentration of 20 mM a cobalt cyanide solution was mixed with a 1L concentration of 40 mm, magnetic force for 2 h, centrifugal, and centrifugally, the iron-contai...

Embodiment 2

[0050] An application of the quantum dot modified iron cobalt oxide in the treatment of antibiotic wastewater, specifically, the quantum point modified iron cobalt oxide produced by the first embodiment of the present invention removes tetracycline in the water body, including the following steps:

[0051] The volume of 1 l, a concentration of 50 mg / L was taken, and 1.0 g of quantum dot modified iron cobalt oxide and 1 g of sodium sulfate solids, after mixing, adjust the initial pH of the resulting mixture of 7, at room temperature conditions The sulfate activated oxidation reaction was carried out to complete degradation of tetracycline.

[0052] The control group was 1 to a tetracycline solution having a volume of 1 L, a concentration of 50 mg / L, and a sodium sulfate solid was added. After mixing is uniform, the initial pH of the resulting mixture was 7, and the sulfate was carried out under room temperature. Reaction, complete degradation of tetracycline.

[0053] The contr...

Embodiment 3

[0058] Taking a quantum dotted iron cobalt oxide prepared in the water body in the water body, a quantum dot modified iron cobalt oxide prepared in Example 1, including the following steps:

[0059] The quantum dot modified iron cobalt oxide prepared in 0.5 g, 1.0 g, 2.0 g, 3.0 g and 4.0 g of Example 1 was added 5 parts by volume of 50 mg / L, and the quantum dot modified iron cobalt oxide prepared in Example 1 was added. After adding 1 g of sodium sulfate, after mixing, the initial pH of the resulting mixture was 7, and the sulfate activated oxidation reaction was carried out under room temperature conditions, and the degradation treatment of tetracycline was completed.

[0060] After 10 min, 20 min, 30 min, 45min, 60min, 75min, 90min, 45min, 60min, 75min, 90min, and 120min, 60min, 75min, 90min, and 120min, 60 min, 75min, 90min, and 120min, respectively, using high performance liquid chromatography to detect the content of tetracycline in the solution, see the measurement results...

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Abstract

The invention discloses a quantum dot modified iron-cobalt oxide as well as a preparation method and application thereof. The quantum dot modified iron-cobalt oxide is mainly prepared by performing oil bath reaction on an iron-cobalt-containing prussian blue analogue, benzyl alcohol, a cobalt ion-containing organic compound and ammonia water and then performing heat treatment. The preparation method comprises the following steps: coordinating a potassium ferricyanide solution and a cobalt ion solution to synthesize an iron-cobalt-containing prussian blue analogue, dispersing the iron-cobalt-containing prussian blue analogue in benzyl alcohol, adding and dissolving a cobalt ion-containing organic compound, mixing the obtained solution with ammonia water, carrying out oil bath reaction, andcarrying out heat treatment to obtain the product. The quantum dot modified iron-cobalt oxide is good in dispersity, large in specific surface area, multiple in catalytic sites, high in catalytic efficiency, good in magnetism, easy to separate and recycle, simple and convenient in preparation process, low in cost, environmentally friendly, capable of being used for treating antibiotic wastewater,high in removal efficiency, thorough in removal effect, free of secondary pollution and good in application prospect.

Description

Technical field [0001] The present invention belongs to the field of environmental governance, involving a quantum dot modified iron cobalt oxide and its preparation method and application thereof. Background technique [0002] Antibiotics is a kind of secondary metabolite produced by microorganisms (including bacteria, fungi, amplifier) ​​or high moving plants in life, is a class of unscrupulous. Chemical substances of normal development of cells. Antibiotics have been widely used due to the advantages of simple use of simple, stable chemical properties, high antibacterial spectrum, low price, small toxicity, and wide application. However, after the use of antibiotics, it cannot be completely absorbed by organisms, and most of them are discharged into water and soil environments with uretaries and feces in the form of protogah or metabolites (such as conjugate, hydrolyzate, etc.). Since antibiotic contaminants are not easily degraded, some antibiotics also have biological enrich...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/75B01J35/10C02F1/72C02F101/38C02F103/34
CPCB01J23/75B01J35/0066B01J35/1004C02F1/725C02F2101/38C02F2103/343
Inventor 刘洋刘智峰程敏邵彬彬梁清华张魏吴婷罗崧豪彭赞潘园周成赟汪文军
Owner HUNAN UNIV
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