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ZnO/Ag/graphene nanometer composite material, preparation method and application thereof

A nanocomposite material and graphene technology, applied in the direction of botanical equipment and methods, applications, sanitary equipment for toilets, etc., can solve the problems of inconvenient conditions, cumbersome preparation process, etc., and achieve reduction of preparation cost, simple preparation process, and enhanced The effect of antibacterial persistence

Active Publication Date: 2018-07-17
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some scholars try to use a two-step method to combine Ag nanoparticles and semiconductor nanoparticles with graphene. The loading of nanoparticles has prepared ZnO / Ag / graphene composite materials, but the two-step preparation process is cumbersome; although Meng et al. have explored a one-step method to prepare ZnO / Ag / graphene composite materials, they use a microwave reduction process and the conditions It is relatively inconvenient. In this patent, an environmentally friendly reducing agent is used to simultaneously load smaller-sized ZnO and Ag nanoparticles on the graphene sheet through a simple solvothermal method, and there are few studies on the use of the synergistic effect of the three for sterilization and antibacterial. to report

Method used

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  • ZnO/Ag/graphene nanometer composite material, preparation method and application thereof
  • ZnO/Ag/graphene nanometer composite material, preparation method and application thereof
  • ZnO/Ag/graphene nanometer composite material, preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0023] Prepare GO into a suspension with a concentration of 0.5 mg / mL and ultrasonically disperse until it is uniformly dispersed; dissolve zinc acetate hexahydrate in ethanol to prepare a zinc acetate solution with a concentration of 6 mg / mL: mix the above-mentioned zinc acetate solution and GO suspension, and store at room temperature Under magnetic stirring for 15 minutes, ultrasonic for 30 minutes to obtain Zn 2+ / GO suspension; the volume ratio of the zinc acetate solution to the GO suspension is 1:6; then NaOH is prepared as a 3mg / mL aqueous solution, which is added dropwise to the mixed solution while the above mixed solution is stirred; the NaOH solution The volume ratio of the mixed solution to the mixed solution is 1:12; then the silver nitrate is dissolved in ethanol to prepare a 4 mg / mL silver nitrate solution: the above-mentioned silver nitrate solution is added dropwise to the mixed solution under the condition that the above mixed solution is stirred, and magneti...

Embodiment 2

[0027] Prepare GO into a suspension with a concentration of 0.5 mg / mL and ultrasonically disperse until uniformly dispersed; dissolve zinc acetate hexahydrate in ethanol to prepare a zinc acetate solution with a concentration of 12 mg / mL: mix the above-mentioned zinc acetate solution and GO suspension, and store at room temperature Under magnetic stirring for 15 minutes, ultrasonic for 30 minutes to obtain Zn 2+ / GO suspension; the volume ratio of the zinc acetate solution to the GO suspension is 1:6; then NaOH is prepared as a 6mg / mL aqueous solution, which is added dropwise to the mixed solution while the above mixed solution is stirred; the NaOH solution The volume ratio of the mixed solution to the mixed solution is 1:12; then the silver nitrate is dissolved in ethanol to prepare a 4 mg / mL silver nitrate solution: the above-mentioned silver nitrate solution is added dropwise to the mixed solution under the condition that the above mixed solution is stirred, and magnetically...

Embodiment 3

[0033] Prepare GO into a suspension with a concentration of 0.5 mg / mL and ultrasonically disperse until uniformly dispersed; dissolve zinc acetate hexahydrate in ethanol to prepare a zinc acetate solution with a concentration of 12 mg / mL: mix the above-mentioned zinc acetate solution and GO suspension, and store at room temperature Under magnetic stirring for 15 minutes, ultrasonic for 30 minutes to obtain Zn 2+ / GO suspension; the volume ratio of the zinc acetate solution to the GO suspension is 1:6; then NaOH is prepared as a 6mg / mL aqueous solution, which is added dropwise to the mixed solution while the above mixed solution is stirred; the NaOH solution The volume ratio of the mixed solution is 1:12; subsequently, silver nitrate-free ethanol is mixed with the above-mentioned suspension, and the volume ratio of the ethanol and the mixed solution is 1:12; Zn 2+ / NaOH / Ag + / GO suspension was transferred into an autoclave, the filling volume of the suspension was 2 / 3 of the v...

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Abstract

The invention relates to a ZnO / Ag / graphene nanometer composite material, a preparation method and application thereof, and belongs to the field of nanometer material application and biological materials. The novel antibacterial ZnO / Ag / graphene composite material is prepared through a one-step solvothermal reaction by using environment-friendly ethyl alcohol as a reducer, the preparation process issimple and convenient, the loading of ZnO and Ag nanometer particles on graphene sheets is realized simultaneously in the one-step preparation process, the sizes of the nanometer particles are controlled effectively, and the used reagent is green and environmentally friendly.

Description

technical field [0001] The invention relates to a ZnO / Ag / graphene composite nano material and a preparation method and application thereof, belonging to the fields of nano material application and biological materials. Background technique [0002] The widespread use of antibiotics has led to the spread of drug-resistant bacteria, and the development of new antibacterial materials has become one of the most urgent research topics. Inorganic antibacterial agents have high safety, long-lasting efficacy, and can inhibit bacteria resistant to antibiotics, so they have development and application prospects. Among them, Ag nanoparticles have received extensive attention due to their broad-spectrum sterilization properties. However, Ag nanoparticles are easily lost in practical applications and are difficult to recycle and reuse. At present, Ag nanoparticles are often loaded on different carriers to make composite materials. Graphene (GE) has become an excellent carrier of nanopar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/08A01N59/16A01P1/00A61L2/00A61L2/08
CPCA01N25/08A01N59/16A61L2/0076A61L2/088
Inventor 张莉莉吴贇炎高帅周亚洲刘芹芹杨娟
Owner JIANGSU UNIV
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