Honeycomb active carbon supported catalyst plate

A technology of supporting catalyst and activated carbon, which is applied in the field of photocatalytic materials, can solve the problems of complex pollutant composition, large fluctuation, and the photocatalytic reaction efficiency cannot be guaranteed, and achieves high catalytic degradation efficiency of organic matter, simple manufacturing method, and promotion of electrons. the effect of the transfer

Inactive Publication Date: 2015-07-22
SHANDONG ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In actual engineering, the composition of pollutants in exhaust gas is complex and the concentration fluctuates greatly with factors such as working conditions, seasons, and climates, which makes the photocatalytic reaction efficiency unable to be guaranteed. At present, there is no clear report on the use of various organic pollutants in large-scale exhaust gas treatment projects. Monolithic catalysts that maintain high catalytic oxidation efficiency of pollutants

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  • Honeycomb active carbon supported catalyst plate

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Effect test

Embodiment 1

[0044] A honeycomb-type activated carbon-supported catalyst plate. Aluminum honeycomb is selected as the photocatalyst support material. The surface of the aluminum honeycomb is coated with two layers of activated carbon as the photocatalyst carrier. The photocatalyst is sprayed on the surface of the activated carbon, and the photocatalyst loading is 1% of the mass of the activated carbon. .

[0045] The method for preparing a honeycomb active carbon-supported catalyst plate, the specific preparation method is as follows:

[0046] 1. Preparation of Activated Carbon Aluminum Honeycomb Support

[0047] 1) Preparation of activated carbon suspension: take 100mL of deionized water with a pH of 5, add sodium hexametaphosphate, stir to dissolve, add activated carbon powder, stir and sonicate for 0.1 hour to become an activated carbon suspension with a concentration of 0.01g / L;

[0048] And the mass ratio of sodium hexametaphosphate to activated carbon powder is 1:100;

[0049] 2) U...

Embodiment 2

[0060] A honeycomb activated carbon-supported catalyst plate, using aluminum honeycomb as the photocatalyst support material, the surface of the aluminum honeycomb is coated with 5 layers of activated carbon as the photocatalyst carrier, and then spraying the photocatalyst on the surface of the activated carbon, and the photocatalyst loading is 40% of the mass of the activated carbon .

[0061] The method for preparing a honeycomb active carbon-supported catalyst plate, the specific preparation method is as follows:

[0062] 1). Preparation of activated carbon aluminum honeycomb carrier

[0063] 1) Preparation of activated carbon suspension: take 10 L of deionized water with a pH of 12, add sodium dodecyl sulfonate, stir to dissolve, add activated carbon powder, stir and ultrasonic for 4 hours to become activated carbon suspension, the concentration of the suspension is 40g / L ;

[0064] And the mass ratio of sodium dodecyl sulfonate and activated carbon powder is 1:20;

[0...

Embodiment 3

[0076] A honeycomb-type activated carbon-supported catalyst plate, using aluminum honeycomb as the photocatalyst support material, the surface of the aluminum honeycomb is coated with 3 layers of activated carbon as the photocatalyst carrier, and then spraying the photocatalyst on the surface of the activated carbon, and the photocatalyst loading is 20% of the mass of the activated carbon .

[0077] The method for preparing a honeycomb active carbon-supported catalyst plate, the specific preparation method is as follows:

[0078] 1. Preparation of Activated Carbon Aluminum Honeycomb Support

[0079] 1) Preparation of activated carbon suspension: take 5 L of deionized water with a pH of 7, add cysteine, stir and dissolve, add activated carbon powder, stir and ultrasonic for 2 hours to become activated carbon suspension, the concentration of the suspension is 10g / L;

[0080] And the mass ratio of cysteine ​​and activated carbon powder is 1:60;

[0081] 2) Using the aluminum ho...

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Abstract

The present invention relates to a honeycomb active carbon supported catalyst plate, wherein honeycomb active carbon is adopted to support a catalyst, the catalyst support material selects aluminum honeycomb, 2-5 layers of the active carbon with characteristics of porous surface and large specific surface area are sprayed on the aluminum honeycomb surface so as to increase the contact area of the ultraviolet light, the reaction gas and the catalyst, then 2-5 layers of the catalyst are sprayed, and the catalyst loading amount is 1-40%. The catalyst has effects of effective photo-induced electron and hole compounding inhibition, photo-induced electron and hole service life prolonging, and catalytic oxidation efficiency improving, and further has advantages of simple manufacturing method, large specific surface area, good catalyst dispersion, run-off resistance, and the like.

Description

technical field [0001] The invention belongs to the field of photocatalytic materials, and in particular relates to the preparation and application of a honeycomb activated carbon-supported catalyst. Background technique [0002] Photocatalytic technology originated from a paper published by Fujishima and Honda in Nature in 1972, and the results showed that TiO 2 Single-crystal electrodes have the function of photo-splitting water, and since then semiconductor photocatalytic reactions have attracted widespread attention. [0003] In recent decades, more and more researchers have devoted to TiO 2 The research on the removal of volatile organic compounds (VOCs) in exhaust gas by photocatalytic oxidation has been gradually transformed from laboratory research to practical application. The principle of photocatalytic oxidation is that when the catalyst is irradiated by ultraviolet light, the electrons in the valence band obtain the energy of photons and jump to the conduction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/18B01J23/22B01J23/34B01J23/75B01J35/04B01D53/88B01D53/44
Inventor 李岩赵明郭延柱王海蕊马晓东赵灿
Owner SHANDONG ACAD OF ENVIRONMENTAL SCI
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