Metal composite in-situ nitrogen-doped carbon microsphere catalyst and application thereof

A technology of nitrogen-doped carbon and metal compounding, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of slow catalytic rate, poor treatment effect, and large dosage, and achieve process Simple, fast and effective

Active Publication Date: 2019-05-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of slow catalytic rate, large dosage and poor treatment effect when the carbon material of the existing preparation met

Method used

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  • Metal composite in-situ nitrogen-doped carbon microsphere catalyst and application thereof
  • Metal composite in-situ nitrogen-doped carbon microsphere catalyst and application thereof

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specific Embodiment approach 1

[0024] Embodiment 1: This embodiment is a method for preparing a metal composite in-situ nitrogen-doped carbon microsphere catalyst, which is completed according to the following steps:

[0025] 1. Preparation of in-situ nitrogen-doped carbon microspheres: Add nitrogen-containing organic polymer monomers and templates to alcohol solution to obtain a mixed reaction solution; stir the mixed reaction solution at a stirring speed of 30r / min to 100r / min Stir and react for 30h to 45h to obtain nitrogen-containing organic polymer microspheres with a particle size of 100nm to 800nm; place nitrogen-containing organic polymer microspheres in a protective atmosphere heating device, and perform high-temperature carbonization under a protective gas atmosphere to obtain the original Nitrogen-doped carbon microspheres;

[0026] The concentration of the nitrogen-containing organic polymer monomer in the mixed reaction solution described in step 1 is 1 g / L to 20 g / L;

[0027] The templating a...

specific Embodiment approach 2

[0040] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the nitrogen-containing organic polymer monomer described in step one is 2-chloroacetamide, pyrrole, aniline, ethylenediamine, dopamine, o-phenanthro Any one of morphine, hexamethylenetetramine, dicyandiamide, urea, 2-amino-2-methyl-1,3-propanediol and carbedopa. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0041] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the protective atmosphere heating equipment described in step 1 is a high-temperature box-type atmosphere furnace, a high-temperature tube-type atmosphere furnace, and a protective atmosphere medium-frequency induction diathermy Any one of the furnace and the continuous protective atmosphere mesh belt furnace. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to application of a catalyst to water treatment, in particular to a metal composite in-situ nitrogen-doped carbon microsphere catalyst and application thereof and aims to solve problems of low catalytic rate, high feeding quantity and poor treatment effects in application of a carbon material prepared according to an existing preparation method to catalytic oxidation treatment of polluted water. A method includes: firstly, preparing in-situ nitrogen-doped carbon microspheres; secondly, modifying the in-situ nitrogen-doped carbon microspheres to obtain the metal compositein-situ nitrogen-doped carbon microsphere catalyst. The metal composite in-situ nitrogen-doped carbon microsphere catalyst has advantages of high rate and effectiveness in degradation of organic pollutants; in degradation of atrazine, complete reaction can be realized by catalyzing of persulfate for 15min. The metal composite in-situ nitrogen-doped carbon microsphere catalyst is obtained.

Description

technical field [0001] The invention relates to the application of a catalyst in water treatment. Background technique [0002] With the rapid development of global science and technology and industrial and agricultural technology, water pollution has gradually become a threat to our ecological environment and life safety that cannot be ignored. The pollutants in polluted water are various and widely distributed. The existence of biodegraded micro-pollutants and very stable organic substances cannot be effectively and efficiently removed by existing conventional water treatment processes. These pollutants will eventually be discharged into natural water bodies, which will cause serious environmental problems and even affect the environment. Harm to human health. At present, the commonly used advanced treatment technologies for polluted water bodies mainly include advanced oxidation, biological methods, membrane treatment technologies and adsorption methods and their combine...

Claims

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Application Information

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IPC IPC(8): B01J27/24C02F1/72C02F101/30
Inventor 马军甄宇菲赵雷孙志强常鹏
Owner HARBIN INST OF TECH
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