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Preparation method and application of copper-doped ferric oxide nanodisk

A technology of ferric oxide and nano-discs, applied in the field of water treatment, can solve the problems that are not suitable for the treatment and restoration of large-scale polluted water bodies, the activation efficiency is limited, and the energy consumption of treatment is increased, so as to achieve enhanced oxidation efficiency and utilization The effect of high efficiency, simple preparation process, and wide pH application range

Pending Publication Date: 2021-04-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] First, Co. 2+ , Fe 2+ Homogeneous activators such as transition metal ions have high activation efficiency, but are highly toxic and may easily cause secondary pollution;
[0006] Second, only using light, sound, electricity, heat and other activation technologies increases the energy consumption to a certain extent, which is not suitable for large-scale treatment and restoration of polluted water bodies, and the activation efficiency is low;
[0007] Third, the activation efficiency is still limited by pH, etc.

Method used

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  • Preparation method and application of copper-doped ferric oxide nanodisk
  • Preparation method and application of copper-doped ferric oxide nanodisk
  • Preparation method and application of copper-doped ferric oxide nanodisk

Examples

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Effect test

Embodiment 1

[0034] A method for preparing a copper-doped ferric oxide nano-disk, comprising the steps of:

[0035] 1) To the mixed solvent of 40mL ethanol and 2.8mL ultrapure water, add 0.01g CuCl 2 2H 2 O and 0.64 g FeCl 3 ·6H 2 O, at this time, Cu 2+ 2.5%, Fe 3+ Accounting for 97.5%, after completely dissolving, add 3.20g of sodium acetate and stir vigorously for 30min to obtain a homogeneous solution;

[0036] 2) Transfer the obtained homogeneous solution to a 90mL PVP reactor, seal it with a matching stainless steel sleeve, transfer it to a blast drying oven, set the reaction temperature at 180°C, and react for 12 hours. After the reaction, wait for the reactor to naturally Cool to room temperature;

[0037] 3) The reaction product obtained in step 2) was taken out, washed three times with ethanol and water respectively, the obtained precipitate was placed in a vacuum drying oven, and dried at 50°C for 12 hours to obtain copper-doped ferric oxide nanodiscs, which were recorded a...

Embodiment 2

[0040] A method for preparing a copper-doped ferric oxide nanodisk, comprising the steps of:

[0041] 1) To a mixed solvent of 40mL ethanol and 2.8mL ultrapure water, add 0.02g CuCl 2 2H 2 O and 0.62g FeCl 3 ·6H 2 O, at this time, Cu 2+ 5%, Fe 3+ Accounting for 95%, after completely dissolving, add 3.20g of sodium acetate and stir vigorously for 30min to obtain a homogeneous solution;

[0042] 2) Transfer the obtained homogeneous solution to a 90mL PVP reactor, seal it with a matching stainless steel sleeve, transfer it to a blast drying oven, set the reaction temperature at 180°C, and react for 12 hours. After the reaction, wait for the reactor to naturally Cool to room temperature;

[0043]3) The reaction product obtained in step 2) was taken out, washed three times with ethanol and water respectively, the obtained precipitate was placed in a vacuum drying oven, and dried at 50°C for 12 hours to obtain copper-doped ferric oxide nanodiscs, which were recorded as CuFONPs...

Embodiment 3

[0046] A method for preparing a copper-doped ferric oxide nano-disk, comprising the steps of:

[0047] 1) To a mixed solvent of 40mL ethanol and 2.8mL ultrapure water, add 0.03g CuCl 2 2H 2 O and 0.60 g FeCl 3 ·6H 2 O, at this time, Cu 2+ 7.5%, Fe 3+ Accounting for 92.5%, after completely dissolving, add 3.20g of sodium acetate and stir vigorously for 30min to obtain a homogeneous solution;

[0048] 2) Transfer the obtained homogeneous solution to a 90mL PVP reactor, seal it with a matching stainless steel sleeve, transfer it to a blast drying oven, set the reaction temperature at 180°C, and react for 12 hours. After the reaction, wait for the reactor to naturally Cool to room temperature;

[0049] 3) The reaction product obtained in step 2) was taken out, washed three times with ethanol and water respectively, the obtained precipitate was placed in a vacuum drying oven, and dried at 50°C for 12 hours to obtain copper-doped ferric oxide nanodiscs, which were recorded as ...

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Abstract

The invention relates to a preparation method of a copper-doped ferric oxide nanodisk, which comprises the following steps: adding Fe3+ ions, Cu2+ ions and sodium acetate into a solvent, and preparing the copper-doped ferric oxide nanodisk by adopting a solvothermal method. The copper-doped ferric oxide nano-disc is prepared by adopting the preparation method of the copper-doped ferric oxide nano-disc. The invention also discloses an application of the copper-doped ferric oxide nanodisk prepared by adopting the preparation method in degrading antibiotic wastewater by photocatalytically activating hydrogen persulfate under visible light. The preparation process is simple and easy to implement, the copper-doped ferric oxide nanodisk activates hydrogen persulfate under visible light, the oxidation efficiency and the utilization rate of a hydrogen persulfate catalytic oxidation system are improved, and the copper-doped ferric oxide nanodisk has a very remarkable degradation effect on organic pollutants difficult to degrade in a water body and has a wide pH application range.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a preparation method and application of a copper-doped ferric oxide nanodisk. Background technique [0002] Advanced oxidation technology has shown unique advantages in water environment treatment, especially in the degradation and even complete mineralization of water organic pollutants. Advanced oxidation technology includes Fenton / Fenton-like technology, photocatalytic technology, ultrasonic radiation technology and ozone oxidation technology, etc. The advanced oxidation method dominated by sulfate radicals is a new advanced oxidation technology developed in recent years. It is reported that the lifetime of sulfate radical (30-40μs) is longer than that of hydroxyl radical (<1μs), and the redox potential is higher (2.5-3.1V), so it has a strong oxidation ability. [0003] In addition, with the liquid oxidant H 2 o 2 Compared with solid persulfate, it is more convenient for...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J35/10C02F1/72C02F101/22
CPCB01J23/745C02F1/722C02F2305/10C02F2101/22B01J35/61B01J35/39
Inventor 张高科郭婷李源
Owner WUHAN UNIV OF TECH
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