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Copper-iron layered double metal hydroxide, copper-iron layered double metal hydroxide/carbon based composite material as well as preparation methods and application of copper-iron layered double metal hydroxide and composite material

A technology of carbon-based composite materials and layered bimetallic materials, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve the problems of monotony of active free radicals, ammonia nitrogen Remove problems such as low efficiency and limited quantity, and achieve the effect of rich morphological structure, improved catalytic ability, and low price

Active Publication Date: 2019-12-03
ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, hypochlorite is usually used to remove ammonia nitrogen pollutants in water, but the active free radicals produced by a single chemical method are monotonous and limited in number, and the removal efficiency of ammonia nitrogen is low

Method used

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  • Copper-iron layered double metal hydroxide, copper-iron layered double metal hydroxide/carbon based composite material as well as preparation methods and application of copper-iron layered double metal hydroxide and composite material
  • Copper-iron layered double metal hydroxide, copper-iron layered double metal hydroxide/carbon based composite material as well as preparation methods and application of copper-iron layered double metal hydroxide and composite material
  • Copper-iron layered double metal hydroxide, copper-iron layered double metal hydroxide/carbon based composite material as well as preparation methods and application of copper-iron layered double metal hydroxide and composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The preparation of embodiment 1 copper-iron layered double metal hydroxide (Cu-Fe(2:1) LDH) will 0.02mol Cu(NO 3 ) 2 ·3H 2 O and 0.01mol Fe(NO 3 ) 3 9H 2 O was dissolved in 300ml of deionized water, and then ultrasonicated at room temperature until the metal salt was completely dissolved, and the alkaline reagent prepared by sodium hydroxide and sodium carbonate was added drop by drop, wherein the concentration of sodium hydroxide was 0.5M, and the concentration of sodium carbonate was 0.02 M; slowly add an alkaline reagent to the mixed solution, keep stirring, adjust the pH to 6.7, and continue stirring for one hour; stop stirring, put the mixed solution in an oven at 110°C, let it stand, and age for 5h; pour off the aged sample The supernatant and the remaining mixture were centrifuged and washed at least three times with deionized water, and the obtained sample was dried in an oven at 60°C for 10 h, and then ground to obtain a Cu-Fe(2:1) LDH sample. The XRD patt...

Embodiment 2

[0051] The preparation of embodiment 2 copper-iron layered double metal hydroxide (Cu-Fe(3:1) LDH) will 0.0225mol Cu(NO 3 ) 2 ·3H 2 O and 0.0075mol Fe(NO 3 ) 3 Dissolve 9H2O in 300ml of deionized water, then ultrasonicate at room temperature until the metal salt is completely dissolved, then add the alkaline reagent prepared by sodium hydroxide and sodium carbonate drop by drop, wherein the concentration of sodium hydroxide is 0.5M, and the concentration of sodium carbonate is 0.015M; slowly add alkaline reagents to the mixed solution, keep stirring, adjust the pH to 6.7, and continue stirring for one hour; stop stirring, put the mixed solution in an oven at 110°C, let it stand, and age for 5 hours; pour off the aged sample The supernatant, the remaining mixture was centrifuged and washed at least three times with deionized water, and the obtained sample was dried in a 60°C oven for 10 h, and then ground to obtain a Cu-Fe(3:1) LDH sample. The XRD pattern of obtained produc...

Embodiment 3

[0053] Example 3 Preparation of copper-iron layered double hydroxide (Cu-Fe(4:1) LDH).

[0054] 0.024mol Cu(NO 3 ) 2 ·3H 2 O and 0.006mol Fe(NO 3 ) 3 9H 2 O was dissolved in 300ml of deionized water, then ultrasonicated at room temperature until the metal salt was completely dissolved, and the alkaline reagent prepared by sodium hydroxide and sodium carbonate was added drop by drop, wherein the concentration of sodium hydroxide was 0.5M and the concentration of sodium carbonate was 0.012 M; slowly add an alkaline reagent to the mixed solution, keep stirring, adjust the pH to 6.7, and continue stirring for one hour; stop stirring, put the mixed solution in an oven at 110°C, let it stand, and age for 5h; pour off the aged sample The supernatant and the remaining mixture were centrifuged and washed at least three times with deionized water, and the obtained sample was dried in an oven at 60°C for 10 h, and then ground to obtain a Cu-Fe(4:1) LDH sample. The scanning electron...

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Abstract

The invention relates to a copper-iron layered double metal hydroxide, a copper-iron layered double metal hydroxide / carbon based composite material as well as preparation methods and application of the copper-iron layered double metal hydroxide and the composite material. The preparation method of the copper-iron layered double metal hydroxide includes the following steps: (1) dissolving a metal copper salt and a metal iron salt into deionized water to obtain a mixed solution; and (2) adding an alkaline reagent into the mixed solution, adjusting the pH to 5-7, and performing aging at 60-130 DEG C for 20-80 h to obtain the copper-iron layered double metal hydroxide.

Description

technical field [0001] The invention relates to a copper-iron layered double metal hydroxide, a copper-iron layered double metal hydroxide / carbon-based composite material and a preparation method and application thereof, in particular to a copper-iron layered double metal hydroxide and its carbon The invention relates to a matrix composite material, a preparation method thereof and an application of photochemical catalysis for removing ammonia nitrogen from water, belonging to the technical field of water treatment. Background technique [0002] Ammonia nitrogen is a common pollutant in water, mainly from waste water and landfill leachate discharge from chemical fertilizer, tanning, breeding, petrochemical, meat processing and other industries, as well as urban sewage and agricultural irrigation drainage. The discharge of a large amount of ammonia nitrogen wastewater will cause eutrophication of the water body, produce stench, and cause difficulties in water supply. At pres...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J35/10B01J35/02C02F1/32C02F1/76C02F101/16
CPCB01J23/745C02F1/32C02F1/76C02F2101/16C02F2305/10C02F2305/02B01J35/394B01J35/00B01J35/30B01J35/61B01J35/39
Inventor 赵国萍刘阳桥孙盛睿王杨杨李娜
Owner ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECH CO LTD
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