Preparation method of Co3O4 particle-loaded nanocarbon composite catalytic material

A technology of nano-carbon materials and catalytic materials, which is applied in the preparation of nano-carbon composite catalytic materials and the field of sewage degradation treatment, can solve the problems of complex process, low efficiency, long process time, etc. The effect of improving catalytic performance

Pending Publication Date: 2021-11-12
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing preparation methods of graphene inorganic composite materials include electrochemical deposition method, sol-gel method and hydrothermal method, etc. Taking hydrothe

Method used

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  • Preparation method of Co3O4 particle-loaded nanocarbon composite catalytic material
  • Preparation method of Co3O4 particle-loaded nanocarbon composite catalytic material
  • Preparation method of Co3O4 particle-loaded nanocarbon composite catalytic material

Examples

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Example Embodiment

[0027] Example 1

[0028] Load C on nanocarbon material (GO) O3 O 4 Composite catalytic material, with GO as carrier materials, C O3 O 4 For attachment materials, it is prepared by step-by-step microwave hydrothermal. The specific preparation method includes the following steps:

[0029] (1) Pre-treatment: After the weighing 5 mg GO (about 3.3 mg of C is about 3.3 mg of GO) and 20 ml of DMF, it is placed in ultrasonic instruments, and 2 ml of deionized water and 0.1 g of four water were added dropwise. Cobalt acetate mixed solution to form a precursor solution;

[0030] (2) Step-by-step microwave hydrothermal method: Put the precursor solution at a speed of 300 rpm at a speed of 300 rpm in a magnetic stirring water bath, resulting in an intermediate product; 50 mg intermediate product is filtered after filtering with ethanol, add 5ml The ionized water is subjected to secondary dispersion, and the dispersed solution is placed in a microwave parallel water heat synthesizer at 100 ° ...

Example Embodiment

[0036] Example 2

[0037] Example 2 differs from the embodiment described in Example 1 in that: changing only the parallel microwave synthesizer hydrothermal reaction temperature was 120 ℃. The resulting GO / Co 3 O 4 Composite catalytic material, the nano-C O3 O 4 The supporting structure exactly the same, to increase the particle size diameter 50-120nm.

[0038] Photocatalytic performance tests, the composite catalyst prepared in Example 2 of the embodiment greater than 90% of the Orange Ⅱ degradation removed within 0.5h.

Example Embodiment

[0039] Example 3

[0040] A load C in the nano-carbon material (CNT) O3 O 4 The composite catalytic material to the carrier material for the CNT, C O3 O 4 For attachment materials, it is prepared by step-by-step microwave hydrothermal. The specific preparation method includes the following steps:

[0041] (1) Prior to Treatment: After weighing 5mg CNT according 20ml DMF and mixed at room temperature in a thermostat placed in an ultrasonic apparatus the ultrasonic 0.5h, 2ml was added dropwise a mixed solution of deionized water and 0.1g of water four cobalt acetate, forming a precursor solution;

[0042] (2) Step-by-step microwave hydrothermal method: Put the precursor solution at a speed of 300 rpm at a speed of 300 rpm in a magnetic stirring water bath, resulting in an intermediate product; 50 mg intermediate product is filtered after filtering with ethanol, add 5ml The ionized water is subjected to secondary dispersion, and the dispersed solution is placed in a microwave paralle...

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Abstract

The invention discloses a preparation method of a Co3O4 particle-loaded nanocarbon composite catalytic material (nanocarbon/Co3O4 composite catalytic material). Co3O4 is fixed on a nanocarbon material by adopting a step-by-step microwave hydrothermal method to prepare the nanocarbon/Co3O4 composite catalytic material. The preparation method is simple in process, short in process time and low in cost, the preparation time can be shortened to be within 3 h, and the prepared nanocarbon/Co3O4 composite catalytic material has a large specific surface area and remarkable photocatalytic performance.

Description

technical field [0001] The invention relates to a load Co 3 o 4 The invention relates to a method for preparing a granular nano-carbon composite catalytic material, which belongs to the field of environmental protection and can be used in the degradation treatment of sewage and the like. Background technique [0002] Organic wastewater is one of the most harmful types of sewage, which can cause permanent and destructive damage to lakes and oceans. In order to solve the degradation problem of organic waste water, many teams around the world are constantly exploring, and the research direction of using catalysts with high catalytic performance is very bright and highly recognized. Under the action of the catalyst, the organic matter in the sewage can be degraded into water and carbon dioxide, so as to realize pollution-free discharge. Therefore, it is imminent to find a catalyst with high catalytic performance and strong chemical stability. [0003] C O3 o 4 is a transit...

Claims

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Application Information

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IPC IPC(8): B01J23/75B01J37/10B01J37/34C02F1/30
CPCB01J23/75B01J35/004B01J35/0013B01J35/0093B01J37/10B01J37/346C02F1/30C02F2305/10C02F2101/308
Inventor 程晓敏李申豪李元元马振强谭俭
Owner WUHAN UNIV OF TECH
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