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A kind of method for preparing titanium gallium zeolite type photocatalytic material

A photocatalytic material, zeolite-type technology, applied in the field of environmental purification materials, can solve the problem of not having photocatalytic degradation activity of organic pollutants

Active Publication Date: 2021-09-24
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are pores and cavities in the zeolite framework structure, so it has a large specific surface area. It is a kind of high-efficiency adsorbent, but zeolite does not have the activity of photocatalytic degradation of organic pollutants.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing a titanium gallium zeolite photocatalytic material, comprising the following process steps:

[0024] Step 1: Synthesis of Titanium Gallium Alkoxide Solid-Liquid Mixture

[0025] 1.1 Add 350 mL of ethanol, 5 mL of triethanolamine, 18 mL of n-butyl titanate, 3 g of gallium nitrate and 23 mL of 25% tetrabutylammonium hydroxide aqueous solution into a 1L two-necked round-bottomed flask, the above ethanol, triethanolamine, Both n-butyl titanate and gallium nitrate are pure materials; a temperature measuring thermocouple and spherical condenser are installed, and the condenser is cooled with tap water;

[0026] 1.2 Place the flask in a constant temperature water bath at 65°C and reflux for 70 min;

[0027] 1.3 Add 160 mL of deionized water to the flask, and continue to reflux in a constant temperature water bath at 65 °C for 70 min to obtain a solid-liquid mixture of titanium gallium alkoxide.

[0028] Step 2: Thermal Reaction Growth of Titanium Galli...

Embodiment 2

[0038] A method for preparing a titanium gallium zeolite photocatalytic material, comprising the following process steps:

[0039] Step 1: Synthesis of Titanium Gallium Alkoxide Solid-Liquid Mixture

[0040] 1.1 Add 360 mL of ethanol, 5 mL of triethanolamine, 19 mL of n-butyl titanate, 4 g of gallium nitrate and 25 mL of 25% tetrabutylammonium hydroxide aqueous solution into a 1L two-necked round-bottomed flask, the above ethanol, triethanolamine, Both n-butyl titanate and gallium nitrate are pure materials; a temperature measuring thermocouple and spherical condenser are installed, and the condenser is cooled with tap water;

[0041] 1.2 Place the flask in a constant temperature water bath at 65°C and reflux for 70 min;

[0042] 1.3 Add 170 mL of deionized water to the flask, and continue to reflux in a constant temperature water bath at 65 °C for 70 min to obtain a solid-liquid mixture of titanium gallium alkoxide.

[0043] Step 2: Thermal Reaction Growth of Titanium Galli...

Embodiment 3

[0053] A method for preparing a titanium gallium zeolite photocatalytic material, comprising the following process steps:

[0054] Step 1: Synthesis of Titanium Gallium Alkoxide Solid-Liquid Mixture

[0055] 1.1 Add 370 mL of ethanol, 6 mL of triethanolamine, 21 mL of n-butyl titanate, 5 g of gallium nitrate and 27 mL of 25% tetrabutylammonium hydroxide aqueous solution into a 1L two-necked round-bottomed flask. The above ethanol, triethanolamine, Both n-butyl titanate and gallium nitrate are pure materials; a temperature measuring thermocouple and spherical condenser are installed, and the condenser is cooled with tap water;

[0056] 1.2 Place the flask in a constant temperature water bath at 65°C and reflux for 70 min;

[0057] 1.3 Add 180 mL of deionized water to the flask, and continue to reflux in a constant temperature water bath at 65 °C for 70 min to obtain a solid-liquid mixture of titanium gallium alkoxide.

[0058] Step 2: Thermal Reaction Growth of Titanium Galli...

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Abstract

A method for preparing a titanium gallium zeolite-type photocatalytic material belongs to the field of environmental purification materials, and includes the following process steps. Synthesis of titanium gallium alkoxide solid-liquid mixture: reflux 25% aqueous solution of ethanol, triethanolamine, n-butyl titanate, gallium nitrate and tetrabutylammonium hydroxide in a constant temperature water bath at 65°C for 70 min, add deionized water and continue to reflux for 70 min Thermal reaction growth of titanium gallium zeolite: grow in a stainless steel reactor by controlling the reaction temperature, reaction system pressure and reaction time, and then filter and clean; channel and cavity forming: treated with hydrochloric acid solution, constant temperature reflux, filter cleaning, constant temperature drying and Calcination, namely the preparation of titanium gallium zeolite photocatalytic material. The material can be used for adsorption and photocatalytic degradation of organic pollutants in the environment.

Description

technical field [0001] The invention belongs to the field of environmental purification materials, in particular to a method for preparing a titanium gallium zeolite type photocatalytic material. Background technique [0002] Zeolite is a general term for minerals in the zeolite group, and is a hydrous alkali metal or alkaline earth metal aluminosilicate mineral. According to the characteristics of zeolite minerals, it is divided into four types: framework, sheet, fibrous and unclassified. According to the characteristics of pore system, it is divided into one-dimensional, two-dimensional and three-dimensional systems. Natural zeolites are composed of silicon-oxygen tetrahedron and aluminum-oxygen tetrahedron. Natural zeolite is an emerging material that is widely used in industry, agriculture, national defense and other sectors, and its uses are constantly being developed. Zeolite is used as ion exchanger, adsorption separation agent, desiccant, catalyst, cement admixture...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B39/00B01J29/00C02F1/30C02F101/30
CPCC01B39/00C01G15/00C01G23/04C02F1/30B01J29/00C02F2101/30C02F2305/10B01J35/39
Inventor 张文杰张悦韩铭李昊伦董英昊
Owner SHENYANG LIGONG UNIV