Preparation method, product and application of porous titanium hydrogen phosphate material

A phosphate and porous titanium technology, applied in the field of porous materials, can solve problems such as difficult large-scale production, long production cycle, and difficult production, and achieve the effects of short cycle, easy use, and low price

Active Publication Date: 2021-10-26
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the shortcomings of current titanium hydrogen phosphate materials such as difficulty in large-scale production, long production cycle or high cost, and difficult production control, the present invention provides a preparation method of porous titanium hydrogen phosphate material and the resulting product

Method used

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  • Preparation method, product and application of porous titanium hydrogen phosphate material
  • Preparation method, product and application of porous titanium hydrogen phosphate material
  • Preparation method, product and application of porous titanium hydrogen phosphate material

Examples

Experimental program
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Effect test

Embodiment 1

[0031] 1. According to CuO60%, TiO 2 10%, P 2 o 5 30% molar composition select raw materials, CuO, TiO 2 The raw material for the oxide itself, P 2 o 5 The raw material is phosphoric acid solution (85wt%).

[0032] 2. Mix copper oxide and titanium oxide powder materials evenly, then add phosphoric acid solution and appropriate amount of water, mix evenly, heat at 200°C for 24 hours, pulverize for later use, and obtain a mixture.

[0033] 3. Put the mixture in step 2 into the crucible, raise the temperature from room temperature to 1250°C at a rate of 5°C / min, and keep warm at 1250°C to completely melt the mixture. The molten sample is poured into the mold, the surface of the sample is cooled by water to form a block sample, and the block sample is cooled to room temperature for later use.

[0034] 4. Raise the bulk sample to 510°C at a rate of 5°C / min, and keep it for 1 hour, then raise the temperature from 510°C to 665°C at a rate of 5°C / min, and keep it for 2 hours. A...

Embodiment 2

[0039] 1. According to CuO55%, TiO 2 15%, P 2 o 5 30% molar composition select raw materials, CuO, TiO 2 The raw material for the oxide itself, P 2 o 5 The raw material is phosphoric acid solution (85wt%).

[0040] 2, with embodiment 1.

[0041] 3, with embodiment 1.

[0042] 4. Raise the temperature of the sample to 520°C at a rate of 5°C / min, and keep it for 1 hour, then raise the temperature from 520°C to 662°C at a rate of 5°C / min, and keep it for 2 hours. After the heat preservation, the samples were cooled to room temperature with the furnace.

[0043] 5. Soak the sample obtained in step 4 in 1 mol / L hydrochloric acid at 80° C. for 24 hours, and take it out to obtain a porous titanium hydrogen phosphate material.

[0044] The sample is a bulk material. According to XRD analysis, the crystallization of the product is very weak, and it contains titanium hydrogen phosphate phase Ti 2 o 3 (H 2 PO 4 ) 2 2H 2 O, and a small amount of α-Ti(HPO 4 ) 2 ·H 2 O crys...

Embodiment 3

[0047] 1. According to ZnO15%, CuO40%, TiO 2 15%, P 2 o 5 30% molar composition selection of raw materials, ZnO, CuO, TiO 2 The raw material for the oxide itself, P 2 o 5 The raw material is phosphoric acid solution (85wt%).

[0048] 2. Mix zinc oxide, copper oxide and titanium oxide powder raw materials evenly, then add phosphoric acid solution and appropriate amount of water, mix evenly, heat at 200°C for 24 hours, pulverize for later use, and obtain a mixture.

[0049] 3, with embodiment 1.

[0050] 4. Raise the sample to 518°C at a heating rate of 5°C / min, and keep it for 1 hour, then raise it from 518°C to 646°C at a heating rate of 5°C / min, and hold it for 2 hours. After the heat preservation, the samples were cooled to room temperature with the furnace.

[0051] 5. Soak the sample obtained in step 4 in 1 mol / L hydrochloric acid at 80° C. for 24 hours, and take it out to obtain a porous titanium hydrogen phosphate material.

[0052] According to XRD analysis, the...

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Abstract

The invention discloses a method for preparing a porous titanium hydrogen phosphate material, the product and its application. The porous material is composed of 0-30mol% ZnO, 25-60mol% CuO, and 10-15mol% TiO 2 and 30mol%P 2 o 5 In the preparation process, firstly, the mixed materials prepared from various raw materials are melted to form a melt, and then obtained through rapid cooling molding or water quenching, heat treatment, acid etching and other steps. The method adopts inorganic raw materials, the raw materials are easy to obtain, the cost is low, no organic solvent is used, the preparation period is short, the output is high, and it is suitable for industrial application and large-scale production, and provides a new idea for the preparation of porous titanium hydrogen phosphate materials. The main crystal phase of the obtained porous material is Ti 2 o 3 (H 2 PO 4 ) 2 2H 2 O, with high specific surface area, large pore size, adjustable size, and adsorption and ion exchange functions, can be used in various fields.

Description

technical field [0001] The invention relates to a preparation method of a porous titanium hydrogen phosphate material, the obtained product and its application, and belongs to the technical field of porous materials. Background technique [0002] Titanium hydrogen phosphate materials have excellent ion exchange properties and can also be used as catalysts and sensors. Due to its characteristic layered structure, titanium hydrogen phosphate materials are also easily modified by intercalation. At present, titanium hydrogen phosphate materials are mainly prepared by wet chemical method and hydrothermal method, and the titanium sources used are mainly titanium isopropoxide, tetrabutyl titanate, layered titanate, titanium trichloride, titanium tetrachloride, etc. . There are also reports of using titanyl sulfate and titanium powder. The use of organic titanium salts often requires the addition of organic solvents, which is costly and difficult to control the reaction; while th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/37B82Y30/00B01J20/02B01J39/12
CPCB01J20/0211B01J20/0292B01J39/12B82Y30/00C01B25/372C01P2002/72C01P2004/03C01P2004/64C01P2006/12C01P2006/14C01P2006/17
Inventor 刘世权张力元肖礼成
Owner UNIV OF JINAN
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