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Preparation method of TiO2-samarium cuprate nano photocatalysis and electrocatalysis powder

A nanophotonic and electrocatalytic technology, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as unsatisfactory preparation methods, complicated and difficult preparation processes, and poor product performance. , to achieve the effects of nano-sized, strong catalytic effect, and good matching of metal atoms

Active Publication Date: 2020-01-14
东北大学秦皇岛分校
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But samarium cuprate Sm 2 CuO 4 The existing preparation method is unsatisfactory, and there are problems such as the preparation process is complicated and difficult to popularize, and the performance of the obtained product is not good.
The preparation method provided by the present invention can not only solve the above problems, but also coat the TiO2 nanopowder on the improved Sm 2 CuO 4 Nano-powders make the prepared powders have strong catalytic effect in the visible light region and ultraviolet light region at the same time, and the prepared powders have high purity, uniform particle size, good controllability and excellent performance. Report on malachite green

Method used

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  • Preparation method of TiO2-samarium cuprate nano photocatalysis and electrocatalysis powder
  • Preparation method of TiO2-samarium cuprate nano photocatalysis and electrocatalysis powder
  • Preparation method of TiO2-samarium cuprate nano photocatalysis and electrocatalysis powder

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Experimental program
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Effect test

Embodiment 1

[0034] (1) According to samarium cuprate Sm 2 CuO 4 The stoichiometric ratio of Cu and Sm in the medium takes 1mmol copper acetate and 2mmol samarium acetate, dissolves them in deionized water, the volume consumption of deionized water is 6 times of the total molar mass of copper acetate and samarium acetate, and mixes evenly to obtain solution A;

[0035] (2) Add 3 mmol of acetonitrile to solution A, add 2 mmol of dimethylglyoxime, heat and stir at 60° C. for 2 h to obtain solution B;

[0036] (3) Use a pipette gun to add 5ml of lye with a concentration of 1mol / L (the solute is triethylamine, and the solvent is ethanol), into solution B, stir and dissolve, and prepare solution C.

[0037] (4) Put solution C into an oven, and react at a constant temperature for 3 hours at a temperature of 120° C., then cool to room temperature in the air; after the solution system is stable, filter the resulting mixed solution, and wash the resulting solid with water twice, The obtained crys...

Embodiment 2

[0041] (1) According to samarium cuprate Sm 2 CuO 4 The stoichiometric ratio of Cu and Sm in the middle takes 1mmol copper nitrate and 2mmol samarium nitrate, dissolves them in deionized water, the volume consumption of deionized water is 6 times of the total molar mass of copper nitrate and samarium nitrate, mixes evenly, obtains solution A;

[0042] (2) Add 4 mmol of acetonitrile to solution A, add 2 mmol of dimethylglyoxime, heat and stir at 80° C. for 2.5 h to obtain solution B;

[0043] (3) Use a pipette gun to add 5ml of lye with a concentration of 1mol / L (the solute is triethylamine, and the solvent is ethanol) into solution B, stir until dissolved, and prepare solution C.

[0044] (4) Put solution C into an oven, and react at a constant temperature for 4 hours at a temperature of 150° C., then cool to room temperature in the air; after the solution system is stable, filter the resulting mixed solution, and wash the resulting solid with water for 3 times, The obtained...

Embodiment 3

[0050] (1) According to samarium cuprate Sm 2 CuO 4 The stoichiometric ratio of Cu and Sm in the middle takes by weighing 1mmol cupric chloride and 2mmol samarium chloride, is dissolved in deionized water, and the volume consumption of deionized water is 5 times of the total molar mass of cupric chloride and samarium chloride, mixes evenly, Obtain solution A;

[0051] (2) Add 9 mmol of acetonitrile to solution A, add 3 mmol of dimethylglyoxime, heat and stir at 80° C. for 2 h to obtain solution B;

[0052] (3) Use a pipette gun to add 5ml of lye with a concentration of 1mol / L (the solute is triethylamine, and the solvent is ethanol) into solution B, stir until dissolved, and prepare solution C.

[0053] (4) Put solution C into an oven, and react at a constant temperature for 6 hours at a temperature of 130° C., then cool to room temperature in the air; after the solution system is stable, filter the resulting mixed solution, and wash the resulting solid with water 4 times, ...

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Abstract

The invention belongs to the technical field of photocatalysis and electrocatalysis, and particularly relates to a preparation method of a TiO2-samarium cuprate nano photocatalysis and an electrocatalysis powder. The prepared powder has a relatively strong catalytic effect in visible light region and ultraviolet light region at the same time, is high in purity, uniform in granularity, good in controllability and excellent in performance, can be used as a photocatalyst, and is applied to malachite green-containing industry and dye wastewater treatment.

Description

technical field [0001] The invention belongs to the technical field of photocatalysis and electrocatalysis, and specifically relates to TiO 2 - Preparation method of samarium cuprate nano photocatalysis and electrocatalysis powder. Background technique [0002] Rare earth is an important strategic resource, and rare earth elements have the reputation of "industrial vitamins". Rare earth elements are not only widely used in traditional industries such as petroleum, steel, metallurgy, and agriculture, but also play a pivotal role in high-tech fields such as energy, environment, biology, and new materials. Compared with noble metal catalysts with mature preparation technology and practical application, rare earth catalytic materials have outstanding advantages in many aspects. First of all, the resources for preparing rare earth catalytic materials are widely distributed, and the production cost is relatively low. my country's proven rare earth reserves have exceeded 130 mill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83B82Y30/00C02F1/30C25B1/04C25B11/06C02F101/38
CPCB01J23/83B01J37/0018B01J37/0063B82Y30/00C02F1/30C25B1/04C02F2305/10C02F2305/08C02F2101/38C25B11/091B01J35/23B01J35/33B01J35/39Y02E60/36
Inventor 刘宣文郭瑞温辉张圣琦于涛
Owner 东北大学秦皇岛分校
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