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

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Problems solved by technology

In addition, hypochlorite is usually used to remove ammonia nitrogen pollutants in water, but the active free radicals prod

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

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Example Embodiment

[0049] Example 1 Preparation of Cu-Fe layered double metal hydroxide (Cu-Fe(2:1)LDH) 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 sonicated at room temperature until the metal salt was completely dissolved, and an alkaline reagent prepared with sodium hydroxide and sodium carbonate was added dropwise. The concentration of sodium hydroxide was 0.5M and the concentration of sodium carbonate was 0.02 M; 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 a 110 ℃ oven, let stand, and age for 5 hours; discard the sample after aging The supernatant and the remaining mixture were centrifuged and washed with deionized water for at least three times, and the resulting sample was placed in an oven at 60°C for drying for 10 hours, and then ground to obtain a Cu-Fe (2:1) LDH sample. The XRD pattern of the resulti...

Example Embodiment

[0051] Example 2 Preparation of copper-iron layered double metal hydroxide (Cu-Fe(3:1)LDH) 0.0225mol Cu(NO 3 ) 2 ·3H 2 O and 0.0075mol Fe(NO 3 ) 3 ·9H2O is dissolved in 300ml of deionized water, and then sonicated at room temperature until the metal salt is completely dissolved, and an alkaline reagent prepared with sodium hydroxide and sodium carbonate is added drop by drop. 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 to stir for one hour; stop stirring, put the mixed solution in an oven at 110°C, let stand, and age for 5 hours; discard the sample after aging The remaining mixture was centrifuged and washed with deionized water for at least three times, and the resulting sample was placed in an oven at 60° C. to dry for 10 hours, and then ground to obtain a Cu-Fe (3:1) LDH sample. The XRD pattern of the resulting product is...

Example Embodiment

[0053] Example 3 Preparation of copper-iron layered double metal 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, and then sonicated at room temperature until the metal salt was completely dissolved, and an alkaline reagent prepared with sodium hydroxide and sodium carbonate was added dropwise. The concentration of sodium hydroxide was 0.5M and the concentration of sodium carbonate was 0.012. M; 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 a 110 ℃ oven, let stand, and age for 5 hours; discard the sample after aging The supernatant and the remaining mixture were centrifuged and washed with deionized water for at least three times, and the resulting sample was placed in an oven at 60° C. to dry for 10 hours and then ground to obtain a Cu-Fe (4:1) LDH sample. The scanning e...

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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
CPCB01J23/745B01J35/1004B01J35/004B01J35/0066B01J35/02C02F1/32C02F1/76C02F2101/16C02F2305/10C02F2305/02
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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