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Preparation method of porous carbon photo-thermal material with specific morphology and multi-fractal structure

A fractal structure, porous carbon technology, applied in the preparation/purification of carbon, etc., can solve the problems of lack of design and purpose of the product, and achieve the effect of excellent performance

Inactive Publication Date: 2021-08-27
BEIJING UNIV OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the resulting product lacks certain design and purpose

Method used

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  • Preparation method of porous carbon photo-thermal material with specific morphology and multi-fractal structure
  • Preparation method of porous carbon photo-thermal material with specific morphology and multi-fractal structure
  • Preparation method of porous carbon photo-thermal material with specific morphology and multi-fractal structure

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Embodiment 1

[0037] This embodiment provides a preparation method of a porous carbon photothermal material with a specific morphology and multi-fractal structure and its application in photothermal conversion, which includes the following steps:

[0038] Step 1: Prepare rod-shaped stacked MOFs by hydrothermal method. The MOFs are zinc-terephthalic acid-(l-lactic acid) (denoted as ZBl).

[0039] The material was characterized by scanning electron microscopy (SEM) N2 adsorption-desorption curve test (BET), and the test results were as follows: figure 1 and figure 2 Shown, where the BET data is the specific surface area of ​​47.63m 2 / g, the pore volume is 0.06cm 3 / g. It can be seen from the characterization test that the present invention successfully obtains metal-organic framework materials MOFs.

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Abstract

The invention relates to a preparation method of a porous carbon photo-thermal material with specific morphology and a multi-fractal structure, and belongs to the technical field of seawater desalination. The method comprises the following steps: 1, preparing a metal organic framework material MOFs to be tested; 2, carrying out a thermogravimetric-mass spectrometry test and an in-situ infrared test on the MOFs; 3, recording mass spectrum information of gas byproducts during pyrolysis of the MOFs; 4, according to the in-situ infrared test result of the MOFs, analyzing the change of functional groups in the pyrolysis process of the MOFs; 5, confirming the pyrolysis mechanism of the MOFs according to mass spectrum information and functional group information; 6, carrying out a designed carbonization experiment on the MOFs according to a pyrolysis mechanism; and 7, carrying out photo-thermal performance test and seawater desalination experiment on the carbonized product of MOFs. According to the method, the pyrolysis mechanism of MOFs is researched in situ, a carbonized product with expected morphology can be designed and synthesized, and finally the porous carbon material with excellent photo-thermal performance can be prepared.

Description

technical field [0001] The invention relates to a preparation method of a porous carbon photothermal material with specific morphology and multi-fractal structure and its application in photothermal conversion, belonging to the field of seawater desalination. Background technique [0002] The use of natural water and energy is a basic element closely related to human life, economic and social development and social progress. There are a large number of seawater desalination technologies currently on the market, such as seawater freezing, electrodialysis, distillation, reverse osmosis, and ammonium carbonate ion exchange. However, the efficiency of the seawater freezing method is extremely low, and the cost of electrodialysis and ion exchange methods is very high, so this cannot provide a long-term effective solution for seawater desalination. Therefore, scientists have made many contributions to the research on the sustainable utilization of green and clean drinking water r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05
CPCC01B32/05
Inventor 宋怀河黄腾飞李昂
Owner BEIJING UNIV OF CHEM TECH
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