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Starch-based biomass activated carbon supported nanometer catalytic material and preparation method thereof

A catalytic material, activated carbon technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve complex, secondary pollution preparation processes, non-renewable raw materials, etc. problems, to achieve the effect of cheap raw materials, extensive sources, and renewable sources

Inactive Publication Date: 2018-11-23
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problems in the above-mentioned prior art that the metal oxide nano-catalyst powder is easy to agglomerate, the physical adsorption method is easy to be saturated or desorbed to cause secondary pollution, and the preparation process of the traditional supported catalyst is complex and the raw materials are not renewable. And provide a CuO-CeO 2 / Activated carbon-supported catalytic material and preparation method thereof, realizing activated carbon and CuO-CeO 2 The synergistic effect of the catalyst on the adsorption, concentration and catalytic degradation of harmful gases such as formaldehyde, benzene and benzene series in the room

Method used

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  • Starch-based biomass activated carbon supported nanometer catalytic material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] Preferably adopt the potato starch that Canadian Nutri-Pea Limited company produces, preferably adopt the Cu(NO 3 ) 2 , preferably Ce(NO 3 ) 3 ·6H 2 O. Glycerol, Cu(NO 3 ) 2 and Ce(NO 3 ) 3 ·6H 2 Dissolve O in water, add starch, stir at a constant temperature at a constant speed, defoam, cool to room temperature, and control the mass ratio of the copper compound and the cerium compound to be 1:1, and the mass ratio of the metal element in the metal compound to the starch is 1:50, the mass ratio of starch to water is 1:20, the mass ratio of plasticizer to starch is 1:100, the stirring temperature is 90°C, the stirring speed is 120r / min, the stirring time is 30min, and the defoaming temperature is 60°C, the degassing vacuum degree is 0.1MPa, and the degassing time is 20min to obtain starch paste; the starch paste is left to stand under freezing conditions to gel, and then it is dried, and the freezing temperature is controlled at -4°C. The time is 168h, vacuum f...

Embodiment 2

[0033] Preferably adopt the pea starch that Canadian Nutri-Pea Limited company produces, preferably adopt the Cu(NO 3 ) 2 , preferably using Ce(NO 3 ) 3 ·6H 2 O. Glycerol, Cu(NO 3 ) 2 and Ce(NO 3 ) 3 ·6H 2 Dissolve O in water, add starch, stir at a constant temperature at a constant speed, defoam, cool to room temperature, and control the mass ratio of the copper compound and the cerium compound to be 1:1, and the mass ratio of the metal element in the metal compound to the starch is 1:50, the mass ratio of starch to water is 1:20, the mass ratio of plasticizer to starch is 1:100, the stirring temperature is 90°C, the stirring speed is 120r / min, stirring for 30min, and the defoaming temperature is 60°C , the defoaming vacuum degree is 0.1MPa, the defoaming time is 20min, and the starch paste is obtained; the starch paste is left to gel under freezing conditions, and then it is dried, and the freezing temperature is controlled at -4°C, and the freezing time is 168h, u...

Embodiment 3

[0035] Preferably adopt the potato starch that Chinese Beijing Gusong Economic and Trade Co., Ltd. produces, preferably adopt the Cu(NO 3 ) 2 , preferably Ce(NO 3 ) 3 ·6H 2 O. Glycerol, Cu(NO 3 ) 2 and Ce(NO 3 ) 3 ·6H 2 O was dissolved in water, added starch, stirred at a constant temperature at a constant speed, defoamed, cooled to room temperature, and the mass ratio of the copper compound and the cerium compound was controlled to be 1:1, and the mass ratio of the metal element and starch in the metal compound was 1:25, the mass ratio of starch to water is 1:20, the mass ratio of plasticizer to starch is 1:100, the stirring temperature is 90°C, the stirring speed is 120r / min, stirring for 30min, and the defoaming temperature is 60°C , the defoaming vacuum degree is 0.1MPa, the defoaming time is 20min, and the starch paste is obtained; the starch paste is left to gel under freezing conditions, and then it is dried, and the freezing temperature is controlled at -4°C, ...

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Abstract

The invention belongs to the field of chemical catalytic materials, and particularly relates to a starch-based biomass activated carbon supported catalytic material for removing indoor polluting gasesand a preparation method thereof. The preparation method comprises the following steps: mixing water, a plasticizer, starch, a copper and cerium compound by taking the copper compound and the ceriumcompound as raw materials for preparing active components and taking the starch as a raw material for preparing carrier activated carbon, and heating and stirring to obtain starch paste; performing freeze drying to obtain starch dry gel; performing carbonization and activation to oxidize Cu<2+> and Ce<3+> into CuO and CeO2 and transform the starch into activated carbon to prepare the supported catalytic material, thereby realizing the synergistic effect of capturing of indoor polluting gases such as formaldehyde, benzene, toluene and carbon monoxide as well as catalytic degradation by the activated carbon and a CuO-CeO2 catalyst. The preparation method has the advantages of low price and wide source of preparation raw materials, lower cost and higher profit. The preparation process is simple and pollution-free, and is an environment-friendly process.

Description

technical field [0001] The invention belongs to the field of chemical catalytic materials, and in particular relates to a starch-based biomass activated carbon-loaded catalytic material for removing indoor pollutant gases, and also relates to a preparation method thereof. Background technique [0002] Formaldehyde, toluene, xylene and other indoor pollutant gases are environmental pollutants in the urban ecosystem that have an important impact on the quality of the living environment. They mainly come from panels and various decorative materials used in interior decoration and furniture manufacturing. Formaldehyde can cause serious irritation to human respiratory mucosa, eyes, etc., and even induce various cancers and genetic diseases. Benzene and benzene series have strong carcinogenic and teratogenic abilities, which will pose a huge threat to human health. Therefore, purification of indoor pollutant gases and improvement of indoor air quality have become one of the curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83B01J35/10B01D53/86B01D53/72B01D53/44B01D53/62
CPCB01D53/864B01D53/8668B01D53/8687B01J23/83B01D2257/7027B01D2257/708B01D2257/502B01J35/61B01J35/60B01J35/64Y02A50/20
Inventor 王宁刘龙杨鲁豫张昶陈洋
Owner TIANJIN POLYTECHNIC UNIV