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A kind of method for preparing SR-ti-in ternary oxide molecular sieve

A ternary oxide, sr-ti-in technology, applied in the field of environmental purification materials, can solve the problems of inability to oxidize and decompose organic pollutants, lack of photocatalytic oxidation activity, etc., achieve uniform pore size, stable performance, and controllable good sex effect

Inactive Publication Date: 2020-09-04
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of molecular sieve has a certain adsorption capacity, it cannot oxidize and decompose organic pollutants under light, that is, it does not have photocatalytic oxidation activity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for preparing Sr-Ti-In ternary oxide molecular sieves, comprising the following processing steps:

[0025] Step 1: Prepare strontium-indium mixed solution

[0026] 1.1 Add 5g of strontium carbonate to 200mL of 0.1mol / L ammonium chloride aqueous solution, stir to dissolve completely;

[0027] 1.2 Add 60 mL of 0.3mol / L indium nitrate aqueous solution to the above solution, and mix well to obtain a strontium-indium mixed solution for later use.

[0028] Step 2: Preparation of template agent-titanium alcohol solution

[0029] 2.1 Take a 1L two-necked round-bottom flask, install a temperature measuring thermocouple and a spherical condenser tube, and put tap water into the condenser tube for cooling;

[0030] 2.2 Add 260 mL of ethanol, 8 g of ammonium acetate, 22 mL of n-butyl titanate, and 3 g of octadecylamine into the flask. The above materials are pure materials; place the flask in a constant temperature water bath at 72 °C and reflux for 50 min;

[0031] 2.3...

Embodiment 2

[0041] A method for preparing Sr-Ti-In ternary oxide molecular sieves, comprising the following processing steps:

[0042] Step 1: Prepare strontium-indium mixed solution

[0043] 1.1 Add 7g of strontium carbonate to 200 mL of 0.1mol / L ammonium chloride aqueous solution, and stir to dissolve it completely;

[0044] 1.2 Add 90 mL of 0.3mol / L indium nitrate aqueous solution to the above solution, and mix well to prepare a strontium-indium mixed solution for later use.

[0045] Step 2: Preparation of template agent-titanium alcohol solution

[0046] 2.1 Take a 1L two-necked round-bottom flask, install a temperature measuring thermocouple and a spherical condenser tube, and put tap water into the condenser tube for cooling;

[0047] 2.2 Add 290 mL of ethanol, 9 g of ammonium acetate, 23 mL of n-butyl titanate, and 4 g of octadecylamine into the flask. The above materials are pure materials; place the flask in a constant temperature water bath at 72°C and reflux for 50 min;

[0...

Embodiment 3

[0058] A method for preparing Sr-Ti-In ternary oxide molecular sieves, comprising the following processing steps:

[0059] Step 1: Prepare strontium-indium mixed solution

[0060] 1.1 Add 10g of strontium carbonate to 200mL of 0.1mol / L ammonium chloride aqueous solution, stir to dissolve completely;

[0061]1.2 Add 150 mL of 0.3mol / L indium nitrate aqueous solution to the above solution, and mix well to prepare a strontium-indium mixed solution for later use.

[0062] Step 2: Preparation of template agent-titanium alcohol solution

[0063] 2.1 Take a 1L two-necked round-bottom flask, install a temperature measuring thermocouple and a spherical condenser tube, and put tap water into the condenser tube for cooling;

[0064] 2.2 Add 320 mL of ethanol, 11 g of ammonium acetate, 25 mL of n-butyl titanate, and 5 g of octadecylamine into the flask. The above materials are pure materials; place the flask in a constant temperature water bath at 72 °C and reflux for 50 min;

[0065] ...

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PUM

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Abstract

The invention relates to a method for preparing a Sr-Ti-In (strontium-titanium-indium) ternary oxide molecular sieve, and belongs to the field of environment purifying materials. The method comprisesthe following technological steps of mixing an ammonia chloride water solution, strontium carbonate and an indium nitrate water solution to prepare an Sr-In mixed solution; mixing ethyl alcohol, ammonia acetate, tetrabutyl titanate, octadecylamine and the Sr-In mixed solution to prepare a template agent-titanium alcohol solution; rotaryrotationally evaporating the template agent-titanium alcohol solution until the volume is basically not changed, forming pores in a stainless steel reaction kettle in a hydrothermal way, drying at constant temperature, calcining at high temperature, aging and forming. The Sr-Ti-In ternary oxide molecular sieve can be used for performing adsorption and photocatalysis degrading on the organic pollutants in the environment.

Description

Technical field: [0001] The invention belongs to the field of environmental purification materials, and in particular relates to a method for preparing Sr-Ti-In ternary oxide molecular sieves. Background technique: [0002] Molecular sieve refers to a class of substances with a uniform pore structure that can accommodate organic molecules. Molecular sieves are usually crystalline aluminosilicates, and other elements can also be used to partially replace the skeleton silicon or aluminum to form heteroatomic molecular sieves. There are pores and cavities in the molecular sieve framework structure, so it has a large specific surface area and is a kind of high-efficiency adsorbent. Artificial molecular sieves usually use silicon as the basic element of the skeleton, and recently there are attempts to prepare molecular sieves using titanium silicon. Although this type of molecular sieve has a certain adsorption capacity, it cannot oxidize and decompose organic pollutants under ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/16B01J20/28B01J20/30B01J29/00B01J35/02
CPCB01J20/06B01J20/16B01J20/28004B01J20/28016B01J29/00B01J35/004B01J35/023B01J35/026
Inventor 张文杰李昊伦韩铭董英昊
Owner SHENYANG LIGONG UNIV