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Nanometer composite bactericide used in field of environments

A nano-composite and bactericide technology, applied in the field of environmental chemistry, can solve the problems of unsatisfactory bactericidal effect, inability to combine firmly, complicated preparation process, etc., and achieve superior environmental friendliness and human safety, good physical and chemical properties, and improved sterilization. performance effect

Inactive Publication Date: 2018-07-27
上海泽铭环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a nano-composite bactericide used in the environmental field, which has superior bactericidal performance, and a new type of composite bactericide that is firmly combined with silver phosphate and graphene as a carrier to solve the problem of the preparation of existing silver phosphate and carrier materials. Problems such as complex process, inability to be firmly combined, unsatisfactory bactericidal effect and difficulty in recycling, etc. At the same time, it can effectively reduce the amount of silver phosphate used to kill a unit of bacteria, improve the use efficiency of fungicides, and reduce the cost of using fungicides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Measure 30mL 0.1mol / L AgNO 3 Aqueous solution, 10mL 0.1mol / L Na 3 PO 4 Add 0.3g of graphene powder to the aqueous solution. Place the two solutions on both sides of the bladder membrane and let stand for 10 hours until the system is fully reacted. Take the precipitates generated on both sides of the biological semipermeable membrane, wash and dry, Obtain a silver phosphate / graphene composite bactericide.

Embodiment 2

[0014] Measure 30mL 0.1mol / L AgNO 3 Aqueous solution, 10mL 0.1mol / L Na 3 PO 4 Add 0.05g of graphene powder to the aqueous solution, place the two solutions on both sides of the swim bladder, and let stand for 10 hours until the system is fully reacted. Take the precipitates generated on both sides of the biological semipermeable membrane, wash and dry, and obtain Obtained silver phosphate / graphene composite bactericide.

Embodiment 3

[0016] Measure 30mL 0.1mol / L AgNO 3 Aqueous solution, 10mL 0.1mol / L Na 3 PO 4 Add 0.1g of graphene powder to the aqueous solution, place the two solutions on both sides of the egg membrane, and let stand for 10 hours until the system is fully reacted. Take the precipitate formed on both sides of the biological semipermeable membrane, wash and dry, Obtain a silver phosphate / graphene composite bactericide.

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Abstract

The invention belongs to the technical field of environmental chemistry, and particularly relates to a nanometer composite bactericide used in the field of environments. Graphene with the length reaching the micrometer grade is used as a carrier, the characteristics of the large surface area and the high surface activity of the graphene are utilized, silver ions are converted into nanometer silveron the surface of the graphene by means of in-situ reaction, and accordingly the silver phosphate / graphene composite bactericide can be prepared. The nanometer composite bactericide has the advantages that the nanometer silver phosphate composite bactericide which is easy to recycle is high in chemical stability, and diversified bacteria can be effectively killed by the nanometer composite bactericide; the bactericidal performance of the nanometer composite bactericide with the large surface area can be effectively improved.

Description

Technical field [0001] The invention belongs to the field of environmental chemistry, and specifically relates to a nano-composite bactericide used in the environmental field. Background technique [0002] As we all know, many items in life are prone to breed harmful bacteria and even produce harmful substances. With the improvement of living standards, people's demand for sterile articles is increasing, so the sterilization of articles has become a new research hotspot in the field of antibacterial. At present, the fungicides on the market can be mainly divided into organic fungicides and inorganic fungicides. Organic fungicides have problems such as single type of antibacterial, poor human-friendliness, easy resistance to bacteria, and poor thermal stability. Compared with organic fungicides, inorganic fungicides have obvious advantages in versatility, safety, durability and thermal stability. Silver phosphate is widely used in the field of environmental management due to its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/26A01N59/16A01N25/08A01P1/00A01P3/00
CPCA01N25/08A01N59/16A01N59/26
Inventor 占明军刘金库王凤蕊江岚东梅王爱军隋晓飞詹晓芳
Owner 上海泽铭环境科技有限公司
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