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Preparation method and application of inorganic catalytic membrane

A catalytic membrane, inorganic technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problem of poor removal of refractory pollutants, weak combination of catalytic layer and membrane, and inorganic membrane function. single problem, to achieve the effect of improving anti-pollution performance, huge application value and development potential, and enhancing removal effect

Active Publication Date: 2019-05-03
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 single function, poor removal of refractory pollutants, poor anti-pollution performance and poor The catalytic layer of the existing inorganic membrane is not firmly combined with the membrane, and a preparation method and application of the inorganic catalytic membrane are provided

Method used

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  • Preparation method and application of inorganic catalytic membrane
  • Preparation method and application of inorganic catalytic membrane

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specific Embodiment approach 1

[0026] Specific embodiment one: this embodiment is a kind of preparation method of inorganic catalytic membrane is finished according to the following steps:

[0027] 1. Configure carbonization load reserve fluid:

[0028] Firstly add a buffer substance to the solvent to obtain a preparatory solution, and then add a carbonized precursor to obtain a carbonized loading stock solution;

[0029] The buffer substance described in step 1 is a mixture of potassium dihydrogen phosphate and dipotassium hydrogen phosphate or a mixture of sodium dihydrogen phosphate and disodium hydrogen phosphate;

[0030] The substance ratio of potassium dihydrogen phosphate and dipotassium hydrogen phosphate in the mixture of potassium dihydrogen phosphate and dipotassium hydrogen phosphate described in step 1 is 1:(1~50);

[0031] The substance ratio of sodium dihydrogen phosphate and disodium hydrogen phosphate in the mixture of sodium dihydrogen phosphate and disodium hydrogen phosphate described ...

specific Embodiment approach 2

[0045] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the solvent described in step one is deionized water, ammonia water with a mass fraction of 5% to 25%, and chlorine with a mass fraction of 5% to 40%. Any one of ammonium chloride solution and ammonium nitrate solution with a mass fraction of 5% to 40% or a combination of several of them in any ratio. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0046] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the nitrogen-containing organic carbon source described in step one is norepinephrine, acetonitrile, DL-methyldopa, dopamine, aniline , diphenylamine, benzylamine, phenylenediamine, melamine, urea, levodopa, polyethyleneimine, polyacrylonitrile, melanin, pyridine, pyrrole, ethylenediamine, o-phenanthroline, 2-hydroxyaniline, mono Any one of cyanamide and acrylamide or a combination of several of them in any ratio. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a preparation method and application of an inorganic catalytic membrane, and relates to the preparation method and application of the catalytic membrane. The invention aims to solve the problems that an inorganic membrane prepared by a current method has a single function, poor effects on removing refractory pollutants, and poor anti-pollution performance and a catalytic layer of the current inorganic film is not firmly bonded to the current inorganic film by catalytic modification of an inorganic membrane and a combination of a membrane separation technology with an advanced oxidation technology. The method comprises the following steps: 1, preparing a carbonization load reserve liquid; and 2, performing high-temperature carbonization to obtain the inorganic catalytic membrane. The application is that the inorganic catalytic membrane is combined with an oxidant to treat a contaminated water body. According to the preparation method provided by the invention, theinorganic catalytic membrane prepared by the method is combined with the oxidant to treat the contaminated water body, and a removal rate of pollutants in the contaminated water body can reach 94%; and the method can be used to obtain the inorganic catalytic membrane.

Description

technical field [0001] The invention relates to a preparation method and application of a catalytic membrane. Background technique [0002] With the advancement of science and technology and the advancement of human development, there are inevitable shortages and pollution problems in existing water sources. Therefore, people have begun to pay more attention to new water treatment technologies. Among them, membrane separation technology is due to its high separation efficiency and treatment effect. Good, easy to operate and other advantages are widely used. Among commonly used separation membranes, inorganic membranes have greater advantages than organic membranes: such as high temperature resistance and chemical corrosion resistance, good chemical stability, high mechanical strength, and strong anti-microbial degradation ability. Separation technology has been widely used in the field of water treatment. However, with the development of the current global industrializatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J35/02C02F1/72C02F101/34B01J35/00
Inventor 马军甄宇菲孙志强
Owner HARBIN INST OF TECH
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