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A method for preparing europium-titanium composite nano oxide powder

A nano-oxide and composite sol technology is applied in the field of environmental purification materials to achieve ideal use efficiency, stable performance, and ensure stability.

Inactive Publication Date: 2020-09-01
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on this kind of materials is still in the initial stage, the correlation between the preparation method and the material needs to be confirmed by a large number of experiments, and the optimization of the preparation method has become the premise of the research work

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing europium-titanium composite nano oxide powder, comprising the following process steps:

[0018] 1. Preparation of Europium-Titanium Composite Sol

[0019] 1.1 Take one 1L two-necked round bottom flask, add 460 mL absolute ethanol, 35 mL glycerol, 7 g dodecyltrimethylammonium bromide, 22 mL 1,2-butanediol, 12 mL of n-butyl titanate, the above materials are pure materials, a thermocouple and a spherical condensing tube are installed on the flask to form a solution reflux device, and the condensing tube is cooled with tap water;

[0020] 1.2 Place the flask in a constant temperature water bath, keep the temperature of the water bath at 80°C, and reflux for 100 min;

[0021] 1.3 Add 70 mL of 0.5 mol / L europium nitrate aqueous solution to the flask, and continue to reflux for 50 min to prepare europium-titanium composite sol, which is set aside.

[0022] 2. Atomization oxidation process

[0023] 2.1 Fix a glass nozzle in the central constant tempera...

Embodiment 2

[0027] A method for preparing europium-titanium composite nano oxide powder, comprising the following process steps:

[0028] 1. Preparation of Europium-Titanium Composite Sol

[0029] 1.1 Take one 1L two-necked round-bottom flask, add 490 mL of absolute ethanol, 37 mL of glycerol, 8 g of dodecyltrimethylammonium bromide, 25 mL of 1,2-butanediol, 13 mL of n-butyl titanate, the above materials are pure materials, a thermocouple and a spherical condensing tube are installed on the flask to form a solution reflux device, and the condensing tube is cooled with tap water;

[0030] 1.2 Place the flask in a constant temperature water bath, keep the temperature of the water bath at 80°C, and reflux for 100 min;

[0031] 1.3 Add 78 mL of 0.5 mol / L europium nitrate aqueous solution to the flask, and continue to reflux for 50 min to prepare europium-titanium composite sol, which is set aside.

[0032] 2. Atomization oxidation process

[0033] 2.1 Fix a glass nozzle in the central cons...

Embodiment 3

[0037] A method for preparing europium-titanium composite nano oxide powder, comprising the following process steps:

[0038] 1. Preparation of Europium-Titanium Composite Sol

[0039] 1.1 Take one 1L two-necked round-bottom flask, add 530 mL of absolute ethanol, 38 mL of glycerol, 9 g of dodecyltrimethylammonium bromide, 27 mL of 1,2-butanediol, 15 mL of n-butyl titanate, the above materials are pure materials, a thermocouple and a spherical condensing tube are installed on the flask to form a solution reflux device, and the condensing tube is cooled with tap water;

[0040] 1.2 Place the flask in a constant temperature water bath, keep the temperature of the water bath at 80°C, and reflux for 100 min;

[0041] 1.3 Add 85 mL of 0.5 mol / L europium nitrate aqueous solution to the flask, and continue to reflux for 50 min to prepare europium-titanium composite sol, which is set aside.

[0042] 2. Atomization oxidation process

[0043] 2.1 Fix a glass nozzle in the central cons...

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PUM

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Abstract

A method for preparing europium-titanium composite nano-oxide powder by atomization oxidation, which belongs to the field of environmental pollution purification materials. Including the following process steps. Preparation of europium-titanium composite sol: Reflux absolute ethanol, glycerin, dodecyltrimethylammonium bromide, 1,2-butanediol, and n-butyl titanate at 80°C for 100 minutes, and add europium nitrate The aqueous solution was refluxed for 50 minutes to prepare the europium-titanium composite sol; the atomization oxidation process: turn on the high-pressure peristaltic pump to spray the europium-titanium composite sol as mist from the glass nozzle into the electric furnace, oxidize it to form a powdery solid, and continue to maintain the electric furnace The temperature is maintained for 2~3 hours, and then cooled to room temperature to obtain europium-titanium composite nano-oxide powder. It can be used in the photocatalytic purification process of organic pollutants in water and atmosphere.

Description

Technical field: [0001] The invention belongs to the field of environmental purification materials, in particular to a method for preparing europium-titanium composite nano oxide powder. Background technique: [0002] Photocatalytic pollution purification technology can degrade organic pollutants in the environment under artificial and natural light conditions, and achieve the purpose of purifying the environment. It has attracted widespread attention in the past half a century, and a large number of fruitful researches have been carried out. The key point of this technology is to prepare new and efficient photocatalytic materials, including the exploration of new materials and new preparation methods. The characteristics and activity of materials are the most important factors affecting the efficiency of photocatalytic degradation, and different preparation methods play a crucial role in the performance of materials. Composite titanium-lanthanide oxide materials are a rela...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/10B01J35/02C02F1/30B01D53/86B01D53/44C02F101/30B01J35/00
CPCB01D53/8687C02F1/30B01J23/10C02F2101/30C02F2305/10B01J35/50B01J35/40B01J35/39
Inventor 张文杰韩铭李昊伦董英昊
Owner SHENYANG LIGONG UNIV