Carbon-doped nickel phosphide composite antibacterial material as well as preparation method and application thereof

A compound antibacterial and phosphorus-doped technology, applied in the field of antibacterial materials, can solve the problems of poor biocompatibility, high cost, and low antibacterial efficiency, and achieve the effect of simple preparation method, low cost, and high antibacterial performance

Active Publication Date: 2021-06-11
QUANZHOU NORMAL UNIV
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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 provide a carbon-doped nickel phosphide composite antibacterial material and its preparation method and application, which intends to solve the problems of high cost, low antibacterial efficiency and poor biocompatibility of traditional composite materials

Method used

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  • Carbon-doped nickel phosphide composite antibacterial material as well as preparation method and application thereof
  • Carbon-doped nickel phosphide composite antibacterial material as well as preparation method and application thereof
  • Carbon-doped nickel phosphide composite antibacterial material as well as preparation method and application thereof

Examples

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preparation example Construction

[0027] A preparation method of a composite antibacterial material of carbon-doped nickel phosphide, comprising the following steps:

[0028] (1) Add nano-carbon spheres, nickel nitrate hexahydrate, urea and water into a beaker, stir for 0.5-2 h to obtain a uniform mixture;

[0029] In the mixed solution, the concentration of carbon nanospheres is 1-10 g / L, the concentration of nickel nitrate hexahydrate is 0.01-1.00 mol / L, and the concentration of urea is 0.01-1.00 mol / L;

[0030] (2) Add the above mixed solution into the reactor, then place the reactor in an oven, and conduct a hydrothermal reaction at 100-180 °C for 8-20 h;

[0031] (3) Centrifuge the mixed solution obtained from the above hydrothermal reaction, collect the product, wash it with distilled water and ethanol in sequence, and dry it at 55-65 °C for 10-14 h to obtain a black solid powder;

[0032] (4) Put the above solid powder and sodium hypophosphite on both ends of the porcelain boat, place the porcelain boa...

Embodiment 1

[0036] A preparation method of a composite antibacterial material of carbon-doped nickel phosphide, comprising the following steps:

[0037] (1) Add 0.2 g nanocarbon spheres, 0.2 g Ni(NO 3 ) 2 •6H 2 O and 0.125 g of urea were added to 50 mL of water and stirred for 2 h, and stirred evenly to obtain a mixed solution;

[0038] (2) Transfer the above mixed solution to a 50 mL reaction kettle, and then place the reaction kettle in an oven at 160 ◦ Reaction at C for 10 h;

[0039] (3) Centrifuge the solution obtained after the reaction, collect the product, wash it with distilled water and ethanol in sequence, and obtain the sample after vacuum drying;

[0040] (4) Phosphate the above sample and 100 mg of sodium hypophosphite in a tube furnace with nitrogen gas (nitrogen flow rate 80 mL / min), at 300 ◦ Calcined at C for 2 h, the carbon-doped nickel phosphide composite antibacterial material was obtained.

Embodiment 2

[0042] A preparation method of a composite antibacterial material of carbon-doped nickel phosphide, comprising the following steps:

[0043] (1) Mix 0.15 g nanocarbon spheres, 0.2 g Ni(NO 3 ) 2 •6H 2 O and 0.125 g of urea were added to 50 mL of water and stirred for 2 h, and stirred evenly to obtain a mixed solution;

[0044] (2) Transfer the above mixed solution to a 50 mL reaction kettle, then put the reaction kettle in an oven, at 100 ◦ Reaction at C for 20 h;

[0045] (3) Centrifuge the solution obtained after the reaction, collect the product, wash it with distilled water and ethanol in sequence, and obtain the sample after vacuum drying;

[0046] (4) Phosphate the above sample and 100 mg of sodium hypophosphite in a tube furnace with nitrogen gas (nitrogen flow rate 80 mL / min), at 280 ◦ Calcined at C for 2.2 h, the carbon-doped nickel phosphide composite antibacterial material was obtained.

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Abstract

The invention discloses a carbon-doped nickel phosphide composite antibacterial material and a preparation method and application thereof. The method comprises the following steps of (1) adding carbon nanospheres, nickel nitrate hexahydrate, urea and water a beaker, stirring the above to be uniform, and obtaining a mixed solution; (2) adding the mixed solution into a reaction kettle, and putting the reaction kettle into a drying oven for hydrothermal reaction; (3) centrifuging, washing and drying a mixed solution obtained by the hydrothermal reaction to obtain solid powder; and (4) putting the solid powder and sodium hypophosphite into a tubular furnace, and calcining in a nitrogen atmosphere to obtain the carbon-doped nickel phosphide composite antibacterial material. The large specific surface area of the carbon nanospheres in the obtained composite material endows the composite material with more reaction active sites, and the existence of reactive oxygen free radicals greatly improves the antibacterial activity of the composite material, so that the composite material shows efficient antibacterial performance no matter under the dark condition or under the irradiation of sunlight.

Description

technical field [0001] The invention belongs to the technical field of antibacterial materials, and in particular relates to a carbon-doped nickel phosphide composite antibacterial material and its preparation method and application. Background technique [0002] Diseases caused by bacterial infections pose a serious threat to human health due to the emergence of bacterial resistance to existing antibiotics and limited progress in the development of effective new antimicrobial agents. Traditional antibiotics, whether derived from natural products or chemically synthesized, selectively inhibit or kill microbial cells by preventing some of the cell's growth processes, such as DNA replication and repair of white matter synthesis. However, over the years, pathogenic bacteria have developed resistance to almost all existing traditional antibiotics through mutations or the acquisition of resistance genes from other organisms. Therefore, the development of new high-efficiency anti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/26A01N59/00A01P1/00
CPCA01N59/00A01N59/26
Inventor 张晓艳杨大鹏孙桂红贾珊珊
Owner QUANZHOU NORMAL UNIV
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