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Preparation method of nano composite catalyst for removing methanal

A nano-composite and catalyst technology, applied in the field of nano-materials, to achieve the effect of high-quality formaldehyde removal

Inactive Publication Date: 2016-10-26
安庆市天虹新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the generally synthesized catalysts are macroscopically powdery solids, which have limitations in practical applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method that the present invention proposes is used to remove the nanocomposite catalyst of formaldehyde, comprises the steps:

[0023] S1. Add tetra-n-butyl titanate into absolute ethanol at room temperature, and stir for 30 minutes to obtain material a;

[0024] S2. Mix diethanolamine, absolute ethanol and distilled water uniformly at room temperature to obtain material b;

[0025] S3. After stirring material a for 30 minutes, then add solution b to solution a, and stir for 45 minutes to obtain material c;

[0026] S4, material c is dispersed in the chloroplatinic acid solution that the amount concentration of substance is 0.02mol / L, and stirs 1h, then adds the sodium borohydride solution that the amount concentration of substance is 0.02mol / L to carry out liquid phase reduction, then at 85 ℃ drying, after drying, mix with nano diatomite particles evenly, and then calcining at 130 ℃ for 4 hours to obtain a nanocomposite catalyst for removing form...

Embodiment 2

[0029] A kind of preparation method that the present invention proposes is used to remove the nanocomposite catalyst of formaldehyde, comprises the steps:

[0030] S1. Add tetra-n-butyl titanate into absolute ethanol at room temperature, and stir for 20 minutes to obtain material a;

[0031] S2. Mix diethanolamine, absolute ethanol and distilled water uniformly at room temperature to obtain material b;

[0032] S3. After stirring material a for 40 minutes, then add solution b to solution a, and stir for 40 minutes to obtain material c;

[0033] S4, material c is dispersed in the chloroplatinic acid solution that the amount concentration of substance is 0.03mol / L, and stirs 0.5h, then adds the sodium borohydride solution that the amount concentration of substance is 0.03mol / L to carry out liquid phase reduction, then in Dry at 80°C, mix evenly with nanometer diatomite particles after drying, and then calcinate at 140°C for 3 hours to obtain a nanocomposite catalyst for removin...

Embodiment 3

[0036] A kind of preparation method that the present invention proposes is used to remove the nanocomposite catalyst of formaldehyde, comprises the steps:

[0037] S1. Add tetra-n-butyl titanate into absolute ethanol at room temperature, and stir for 40 minutes to obtain material a;

[0038] S2. Mix diethanolamine, absolute ethanol and distilled water uniformly at room temperature to obtain material b;

[0039] S3. After stirring material a for 20 minutes, then add solution b to solution a, and stir for 50 minutes to obtain material c;

[0040] S4, dispersing the material c in a chloroplatinic acid solution with a concentration of 0.01mol / L, and stirring for 1.5h, then adding a sodium borohydride solution with a concentration of 0.01mol / L for liquid phase reduction, and then Dry at 90°C, mix evenly with nanometer diatomite particles after drying, and then calcinate at 120°C for 5 hours to obtain a nanocomposite catalyst for removing formaldehyde.

[0041] Wherein, the molar ...

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Abstract

The invention discloses a preparation method of a nano composite catalyst for removing methanal. The method comprises the following steps of: S1, adding metatitanic tetra-n-butyl into absolute ethyl alcohol at a room temperature, and stirring the materials so as to obtain a material a; S2, uniformly mixing diethanol amine, absolute ethyl alcohol and distilled water at a room temperature, so as to obtain a material b; S3, stirring the material a, then adding the solution b into the solution a, and stirring the solution a and the solution b so as to obtain a material c; S4, dispersing the material c in a chloroplatinic acid solution, stirring, then adding a sodium borohydride solution for liquid-phase reduction, further drying, then mixing with nano kieselguhr particles, and then roasting the mixture, thereby obtaining the nano catalyst for removing methanal. The nano catalyst for degrading methanal, which is prepared by the invention, is simple in production process, good in effect and high in efficiency.

Description

technical field [0001] The invention relates to the field of nanometer materials, in particular to a preparation method of a nanocomposite catalyst for removing formaldehyde. Background technique [0002] Indoor air pollution is threatening human health. Formaldehyde has become one of the main indoor pollutants due to its wide sources, high toxicity, and long pollution time. Following the "soot type" and "photochemical smog type" pollution, modern people are caught in the third pollution period marked by "indoor air pollution". Therefore, solving indoor formaldehyde pollution has become the focus of people's general attention, and more and more methods are used to degrade indoor formaldehyde. [0003] Catalytic oxidation technology can convert formaldehyde into CO2 and H2O, and it is easy to operate, low in cost and high in efficiency, and has broad development prospects and potential for practical application. Nano-catalysts have special surface effects and quantum size e...

Claims

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Application Information

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IPC IPC(8): B01J23/42B01J20/14B01J20/28B82Y30/00
CPCB01J23/42B01J20/14B01J20/28059B01J20/2808B01J21/063B82Y30/00
Inventor 魏松
Owner 安庆市天虹新型材料科技有限公司
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