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Composite metal sulfide with broad-spectrum bactericidal performance and preparation thereof

A composite metal and sulfide technology, applied in the direction of bactericide, iron sulfide, biocide, etc., can solve the problems that cannot be applied in anaerobic environment, and achieve the effect of preventing microbial corrosion, low bactericidal concentration, and broad application prospects

Active Publication Date: 2022-05-13
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since photocatalysts depend on light, Fenton-like processes depend on acidic pH, H 2 o 2 and O 2 , as well as antibiotic resistance and financial costs from antibiotics and precious metals, none of these approaches can be applied in the anaerobic environment of the ocean

Method used

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  • Composite metal sulfide with broad-spectrum bactericidal performance and preparation thereof
  • Composite metal sulfide with broad-spectrum bactericidal performance and preparation thereof
  • Composite metal sulfide with broad-spectrum bactericidal performance and preparation thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Add 10mmol sodium molybdate, 10mmol ferric chloride, 5mmol 4,4-bipyridine and 60mL ultrapure water to the beaker, stir magnetically for 30min, transfer to a 100mL hydrothermal reactor, and crystallize at 120°C for 10h. After the crystallization, cool down to room temperature naturally, take out the precursor, and first wash with ultrapure water for 3 times; the centrifugation condition is 4000 rpm, centrifuge for 10 min, and dry at 60°C after washing to obtain the precursor, which is ready for use.

[0028] Add 0.5g precursor, 1.0g thioacetamide, and 60mL ultrapure water to the beaker, stir magnetically for 30min, disperse evenly, transfer to a 100mL hydrothermal reactor, and vulcanize at different temperatures for 14h (see Table 1). After the reaction finished, the reactor was naturally cooled to room temperature, cleaned and dried according to the above-mentioned steps, and obtained composite metal sulfide (see figure 1 ).

[0029] Depend on figure 1 In order to obt...

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Abstract

The invention relates to a sterilization technology, in particular to a composite metal sulfide material with broad-spectrum sterilization performance and preparation of the composite metal sulfide material. The preparation method comprises the following steps: mixing molybdenum salt, ferric salt and 4, 4-dipyridyl powder, adding the mixture into ultrapure water, uniformly mixing, transferring into a reaction kettle, and crystallizing at 100-140 DEG C for 8-12 hours to obtain a Fe / Mo precursor; and mixing the Fe / Mo precursor with a sulfur source, dissolving the mixture in ultrapure water to obtain a dispersion liquid, transferring the dispersion liquid into a reaction kettle, and reacting at 160-200 DEG C for 12-16 hours to obtain the Fe / Mo-S composite product. The nano material prepared by the invention has the advantages of simple synthesis method, low cost, remarkable performance and the like, and has a wide application prospect in the field of material sterilization.

Description

technical field [0001] The invention relates to a bactericidal technology, in particular to a composite metal sulfide material with broad-spectrum bactericidal performance and its preparation. Background technique [0002] Microbiologically influenced corrosion (MIC) accounts for about 20% of total corrosion losses and poses a serious threat to public health and economic development. To tackle corrosive microorganisms, many bacteria-killing technologies have been investigated, such as photocatalysis, Fenton-like reaction, antibiotics, and noble metals. However, since photocatalysts depend on light, Fenton-like processes depend on acidic pH, H 2 o 2 and O 2 , as well as the problems of antibiotic resistance and financial costs brought about by antibiotics and precious metals, none of these approaches can be applied in the anaerobic environment in the ocean. To reduce corrosive microorganisms and resist microbial corrosion, new research on the bactericidal mechanism and in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/12A01N59/16A01P3/00
CPCC01G49/12A01N59/16C01P2002/72C01P2004/04C01P2002/86Y02A50/30
Inventor 王瑾张盾王毅
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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