A kind of mesoporous titanium apatite and its preparation method and application

A technology of mesoporous titanium apatite and titanium apatite, which is applied in separation methods, chemical instruments and methods, phosphorus compounds, etc., can solve the problems of limited application, poor adsorption performance of scavengers, etc. The degradation rate is accelerated and the effect of no secondary pollution

Active Publication Date: 2020-03-17
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the poor adsorption performance of the existing scavenger and the limited application of the scavenger after loading, the present invention provides a mesoporous titanium apatite

Method used

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  • A kind of mesoporous titanium apatite and its preparation method and application
  • A kind of mesoporous titanium apatite and its preparation method and application
  • A kind of mesoporous titanium apatite and its preparation method and application

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preparation example Construction

[0033] Further, the present invention also provides a method for preparing mesoporous titanium apatite, the preparation method at least including the following steps:

[0034] Step 1, the mesoporous CaCO 3 The template powder is dispersed into water to obtain a suspension;

[0035] Step 2, adding a titanium source to the suspension to disperse evenly;

[0036] Step 3, adding dropwise a monohydrogen phosphate solution to the suspension, reacting at 60-90°C, using ammonia water to adjust the pH value during the reaction;

[0037] Step 4, after the reaction is completed, the product is purified and processed.

[0038] The preparation method provided by the invention is simple.

[0039] The above-mentioned preparation method is further explained below:

[0040] Preferably, the mesoporous CaCO 3 The molar ratio of the template powder to the titanium source is 10:(1-10); and / or

[0041] The mesoporous CaCO 3 The mol ratio of template powder and described monohydrogen phosphat...

Embodiment 1

[0055] The embodiment of the present invention provides a kind of mesoporous titanium apatite, and its preparation method comprises the following steps:

[0056] Step 1, 1g mesoporous CaCO 3 Add the template powder into 100mL water, stir to obtain a suspension;

[0057] Step 2, add 0.01mol titanium sulfate to the suspension, stir and disperse evenly;

[0058] Step 3, 200mL 0.01mol / L Na 2 HPO 4 The solution was added dropwise at a rate of 1mL / min, and stirred in a constant temperature water bath at 60°C for reaction. The reaction conditions were: the stirring speed was 200rpm, the reaction time was 2h, and the pH value was adjusted to 10 with ammonia water during the reaction;

[0059] Step 4. After the reaction is over, the product is separated, and the product is first washed with distilled water until the pH value is 7, then washed with absolute ethanol for 3 times, and then dried at 80°C for 12 hours to obtain mesoporous titanium phosphorus gray stone.

Embodiment 2

[0061] The embodiment of the present invention provides a kind of mesoporous titanium apatite, and its preparation method comprises the following steps:

[0062] Step 1, 1g mesoporous CaCO 3 Add the template powder into 100mL water, stir to obtain a suspension;

[0063] Step 2, add 0.05mol titanium sulfate to the suspension, stir and disperse evenly;

[0064] Step 3, 200mL 0.02mol / L Na 2 HPO 4 The solution was added dropwise at a rate of 2mL / min, and stirred in a constant temperature water bath at 80°C for reaction. The reaction conditions were: the stirring speed was 300rpm, the reaction time was 2h, and the pH value was adjusted to 10 with ammonia water during the reaction;

[0065] Step 4. After the reaction is over, the product is separated, and the product is first washed with distilled water until the pH value is 7, then washed with absolute ethanol for 3 times, and then dried at 80°C for 12 hours to obtain mesoporous titanium phosphorus gray stone.

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Abstract

The invention relates to the technical field of indoor decoration harmful gas removal, and specifically discloses a mesoporous titanium apatite, a preparation method and application thereof. The mesoporous titanium apatite chemical formula is Ti x Ca (5‑x) (F,Cl,OH), 1≤x<5, with a honeycomb porous structure, with an average pore size of 10‑25nm and a specific surface area of ​​50‑200 m 2 / g, the bandgap width is 2.7eV, it has a strong adsorption capacity for harmful gases in interior decoration, and under the light, it can oxidize formaldehyde into CO 2 and H 2 O, no secondary pollution.

Description

technical field [0001] The invention relates to the technical field of indoor decoration harmful gas removal, in particular to a mesoporous titanium apatite and its preparation method and application. Background technique [0002] In recent years, with the improvement of the people's living standards in our country, people's requirements for the living environment, especially the indoor production and living environment, have also been continuously improved. In people's daily life, 70%-80% of the time is spent indoors, up to 21.53 hours, accounting for 92% of the whole day. In order to pursue visual enjoyment and cost control, indoor air pollution problems caused by decoration are increasing day by day. Long-term exposure to indoor air pollution will cause headaches, nausea, fatigue, irritation, irritability, colds and allergies, etc. Symptoms, severe can also lead to cancer, deformity, mutation and so on. Harmful gases from interior decoration are particularly harmful to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/86B01D53/02B01J20/04B01J20/28B01J20/30C01B25/455
CPCB01D53/02B01D53/86B01D53/8668B01D2257/704B01D2257/708B01J20/048B01J20/28061B01J20/28083C01B25/455C01P2002/84C01P2004/03C01P2006/12C01P2006/16
Inventor 肖凤娟李心昕王俊忠郭明阳马俊森任琪玮王新才张鹏范春燕王延生
Owner SHIJIAZHUANG TIEDAO UNIV
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