Method for preparation of MnOx hollow nano-tubular porous catalytic material through radial electric field regulation

A technology of hollow nanometer and electric field control, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., and can solve the problems of less research on catalytic oxidation

Active Publication Date: 2019-12-31
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

MnOx nanosheets, MnOx nanorods, MnOx nanowires, etc. have been reported in the field of oxidative removal of HCHO, but there are few studies on the catalytic oxidation of low concentration HCHO at room temperature.

Method used

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  • Method for preparation of MnOx hollow nano-tubular porous catalytic material through radial electric field regulation
  • Method for preparation of MnOx hollow nano-tubular porous catalytic material through radial electric field regulation
  • Method for preparation of MnOx hollow nano-tubular porous catalytic material through radial electric field regulation

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Embodiment 1

[0021] First configure 0.1M KMnO 4 Solution, bend the cleaned Pt electrode sheet into a cylindrical structure with a diameter of 120mm, connect it to the negative electrode of the power supply through a wire, wrap the top of the carbon fiber cloth tightly on the copper wire, and then connect the copper wire to the positive electrode of the power supply through the wire. Finally, the carbon fiber cloth wrapped with copper wire is bent into a cylinder with a diameter of 30 mm, so that the Pt electrode cylinder and the carbon fiber cylinder or cylinder are coaxially nested (such as Figure 4 shown), the carbon fiber is located inside the center; after completing the above operations, the two are fixed in the KMnO 4 In the reaction bottle of the solution, the copper wire does not touch the KMnO 4 Solution, sealed, connected to an adjustable DC power supply with a voltage of 5V, then placed the entire device in an oil bath at 60°C for 80 minutes, and finally cleaned the removed car...

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Abstract

Belonging to the technical field of catalysts, the invention discloses a method for preparation of a MnOx hollow nano-tubular porous catalytic material through radial electric field regulation. An external direct-current radial electric field accelerates the directed migration of negatively charged MnO<4-> in a solution to the vicinity of a loading material, and redox reaction is carried out for in-situ growth of MnOx hollow nanotubes, thus reaching the purposes of short reaction process time, mass loads and change of product morphology. Also after the structure of the electric field is changed, the morphology of MnOx is changed, and the MnOx hollow nano-tubular porous catalytic material capable of rapidly degrading low-concentration HCHO at room temperature can be obtained.

Description

technical field [0001] The invention relates to a preparation process of a MnOx hollow nanotube-shaped porous catalytic material, belonging to the technical field of manganese oxide catalysts. Background technique [0002] With the development of society and the advancement of science and technology, a variety of home decorations, private vehicles that are convenient for travel, and various daily chemical products have gradually entered the lives of ordinary people, which has continuously improved people's living standards. But it is precisely these industrial products that bring convenience to our lives, a large part of which will release toxic and harmful gas pollutants that threaten human health during our use, among which HCHO is the main organic gas pollutant one. Many researchers began to actively look for a feasible solution that can be used in real life to remove HCHO. The technologies that have made some progress can be roughly divided into adsorption and catalytic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/34B01J35/06B01J37/34B01D53/86B01D53/72
CPCB01J23/34B01J35/0013B01J35/06B01J37/342B01D53/8668B01D2258/06
Inventor 韩昌报郑嘉煜赵文康宋雪梅严辉汪浩张永哲李坤威
Owner BEIJING UNIV OF TECH
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