Honeycomb ceramic for adsorbing and inactivating viruses, and application thereof

A honeycomb ceramic and virus technology, applied in applications, ceramic products, adsorbed water/sewage treatment, etc., can solve the problems of easy shedding of active components, low activity, and poor sterilization effect.

Active Publication Date: 2021-10-01
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its obvious disadvantage is that due to the small specific surface area of ​​honeycomb ceramics, active components such as silver loaded on the surface of the ceramics cannot be firmly combined with the matrix, and exist in the form of larger micron-sized particles, which not only have low activity, but also have poor sterilization effects. Moreover, the active components are easy to fall off, and the long-term sterilization stability is poor
[0010] At present, there are no relevant patent reports and publications on the honeycomb ceramic inorganic antiviral material and its preparation and application that have a good inactivation effect on highly infectious disease viruses such as the new coronavirus (COVID-19)

Method used

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  • Honeycomb ceramic for adsorbing and inactivating viruses, and application thereof
  • Honeycomb ceramic for adsorbing and inactivating viruses, and application thereof
  • Honeycomb ceramic for adsorbing and inactivating viruses, and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0042] The preparation of catalytic material of the present invention comprises the steps:

[0043] 1. Preparation of powdery core-shell structured hierarchical porous materials

[0044] (1) Preparation of nucleus: NH 4 ZSM-5 molecular sieve (SiO 2 / Al 2 o 3 =25, the specific surface area is 550m 2 / g, particle size 2.3μm, average pore size 0.54nm) mixed with 0.35mol / L NaOH solution at a volume ratio of 1:30, heated and stirred in a water bath at 75°C for 2 hours, filtered the mixed solution, and washed the solid until neutral , after drying at 120°C for 6 hours and calcining at 500°C for 2 hours, a hierarchical porous molecular sieve, which is the core of the catalytic material, was obtained. Measure its average mesopore diameter 24.3nm with the automatic physical adsorption instrument (US Micromeritics company, ASAP 2460) that can measure the distribution and pore volume of mesopore and micropore, the pore distribution is 3.2-48.7nm, and the average micropore diameter i...

Embodiment 1-4

[0059] Table 1

[0060]

[0061] Table 2

Embodiment 5-20

[0063]

[0064]

[0065]

[0066]

[0067]

[0068] 2. Adsorption and inactivation test for viruses

[0069] 1. Virus preparation:

[0070] Prepare TCID separately 50 COVID-19 virus liquid (75ng / ul) and TCID 50 The tool lentivirus (pLenti) virus liquid (100ng / ul) is used for the adsorption and inactivation test of new coronavirus and lentivirus by powder materials and honeycomb ceramics;

[0071] 2. Prepare 9 kinds of honeycomb ceramic small blocks, numbered HX-1-9, weigh 0.5g of each material, and 0.5g of honeycomb ceramic matrix of unloaded core-shell structure multi-level porous material, put them into sterile 1.5 ml EP tube, add 1.0mL TCID dropwise 50 The lentivirus (pLenti) virus liquid was reacted at room temperature for 30 minutes, and the mixture of the test substance and the virus liquid was shaken with a shaker at intervals of 5 minutes during this period to ensure the full effect of the material and the virus. At the same time, prepare a blank con...

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Abstract

The invention provides a honeycomb ceramic for adsorbing and inactivating viruses. The honeycomb ceramic is composed of a honeycomb ceramic matrix and a coating, the coating is composed of porous particles for adsorbing and inactivating viruses and a binder roasted product, each porous particle is composed of a shell and a core, and each shell is composed of oxygen storage materials SiO2-CeO2; and each core is a hierarchical pore molecular sieve. The honeycomb ceramic disclosed by the invention can be used for adsorbing and inactivating viruses, and further can be used as a filtering assembly to be used in the field of manufacturing of high-flow-speed air purification equipment such as air purifiers, air conditioners and fresh air systems.

Description

technical field [0001] The invention relates to indoor air purification and protection technology for epidemic virus diseases, in particular to a honeycomb ceramic for absorbing and inactivating viruses and its application. Background technique [0002] The spread of novel coronavirus (COVID-19) seriously threatens the safety of people's lives. The research and development of drugs and vaccines is currently in progress. However, according to the laws of drug and vaccine development, it may be difficult for related products to quickly enter the clinical and practical stage in a short period of time. In order to prevent the spread of viruses, there is an urgent need for long-term and efficient virus inactivation materials for the protection of hospitals, large public places, families and individuals. [0003] According to reports, the transmission route of the new coronavirus includes droplets, aerosols, and dust in the air. Therefore, air purification equipment and fresh air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/85C04B38/00B01J20/28B01D53/02C02F1/28
CPCC04B41/85C04B38/0009C04B41/5092B01J20/28045B01D53/02C02F1/281C04B38/0054B01D2258/06B01D2257/91C04B41/5089C04B41/5076C04B41/5035C04B41/5045
Inventor 马磊吴春田侯宝林朴海龙李林王稳冯璐张万生黄延强王晓东张涛
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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