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Preparation method of ZnI2-I/ZnO composite with photocatalytic antibacterial function

A composite material and photocatalytic technology, which is applied in the field of photocatalytic nanomaterial synthesis, can solve the problem that the photocatalytic antibacterial activity cannot meet the actual requirements, achieve good antibacterial and sterilizing performance, mild preparation conditions, simple equipment and process easy-to-use effects

Active Publication Date: 2017-07-21
福建迪斯发科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nevertheless, the photocatalytic antibacterial activity of ZnO still cannot meet the practical requirements

Method used

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  • Preparation method of ZnI2-I/ZnO composite with photocatalytic antibacterial function
  • Preparation method of ZnI2-I/ZnO composite with photocatalytic antibacterial function
  • Preparation method of ZnI2-I/ZnO composite with photocatalytic antibacterial function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of ZnI with molar ratio I:Zn=1:4 2 -I / ZnO composite material

[0024] (1) 2.023g Zn(NO 3 ) 2 ·6H 2 O was added to a round bottom flask of 100ml deionized water, stirred until homogeneous, then 0.3g HIO was added 3 , then poured 160 mL of ethylene glycol, refluxed in an oil bath at 120 °C for 9 h, and then refluxed in an oil bath at 140 °C for 7 h, and continued magnetic stirring during the reaction.

[0025] (2) Naturally cool to room temperature after the reaction, collect the obtained suspension, wash, centrifuge, and dry under normal pressure at 60°C to obtain a yellow iodine-modified zinc oxide composite powder, which is calcined at 400°C for 2 hours.

[0026] Visible light photocatalytic sterilization performance test

[0027] The light-induced bactericidal performance test of the sample is carried out according to the following steps: first, weigh 30 mg of the above-mentioned catalyst material of Example 1, add to 40 mL (10 8 cfu / mL) in E. coli s...

Embodiment 2

[0033] Preparation of ZnI with molar ratio I:Zn=1:2 2 -I / ZnO composite material

[0034] (1) 1.012g Zn(NO 3 ) 2 ·6H 2 O was added to a round bottom flask of 100ml deionized water, stirred until homogeneous, then 0.3g HIO was added 3 , then poured 160 mL of ethylene glycol, refluxed in an oil bath at 120 °C for 9 h, and then refluxed in an oil bath at 140 °C for 7 h, and continued magnetic stirring during the reaction.

[0035] (2) Naturally cool to room temperature after the reaction, collect the obtained suspension, wash, centrifuge, and dry under normal pressure at 60°C to obtain a yellow iodine-modified zinc oxide composite powder, which is calcined at 400°C for 2 hours.

[0036] Visible light photocatalytic sterilization performance test

[0037] The light-induced bactericidal performance test of the sample is carried out according to the following steps: first, weigh 30 mg of the above-mentioned catalyst material of Example 2, add to 40 mL (10 8 cfu / mL) in E. coli s...

Embodiment 3

[0042] Preparation of ZnI with molar ratio I:Zn=1:6 2 -I / ZnO composite material

[0043] (1) 7.139g Zn(NO 3 ) 2 ·6H 2 O was added to a round-bottomed flask with 100ml of deionized water, stirred until uniform, then 0.599g of NaI was added, and then 160 mL of ethylene glycol was poured in, refluxed in an oil bath at 120°C for 9 h, and then refluxed in an oil bath at 140°C for 7 h, and the reaction Continuous magnetic stirring.

[0044] (2) Naturally cool to room temperature after the reaction, collect the obtained suspension, wash, centrifuge, and dry under normal pressure at 60°C to obtain a yellow iodine-modified zinc oxide composite powder, which is calcined at 400°C for 2 hours.

[0045] Visible light photocatalytic sterilization performance test

[0046] The light-induced bactericidal performance test of the sample is carried out according to the following steps: first, weigh 30 mg of the above-mentioned catalyst material of Example 3, add to 40 mL (10 8cfu / mL) in E....

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Abstract

The invention discloses a preparation method of ZnI2-I / ZnO composite with photocatalytic antibacterial function and belongs to the technical field of synthesis of materials. The preparation method comprises: adding a certain ratio of iodine compound solution into zinc nitrate or zinc acetate as a main material, using mixed solution of alcohol and water as a reaction solvent, and performing solvothermal reflux process to obtain the ZnI2-I / ZnO composite photocatalytic material with high antibacterial activity. ZnI2 and I2 are grown on the surface of ZnO through in-situ growth; the method is simple and feasible, the raw materials are low in price and easy to obtain, and equipment and technical process are simple and easy to perform; the method has the advantages of low reagent pollution, good reaction repeatability, mild preparation conditions and the like. The prepared ZnI2-I / ZnO composite has good antibacterial and sterilizing properties in photocatalytic antibacterial process, and has good performance stability and good repeatability.

Description

technical field [0001] The invention mainly belongs to the technical field of synthesis of photocatalytic nanomaterials, and specifically relates to a photocatalytic antibacterial function containing ZnI 2 - Preparation method of I / ZnO composite material. Background technique [0002] Since the first report of photocatalytic antibacterial research by Matsunaga et al. in 1985, the environmentally friendly photocatalytic antibacterial technology has been paid more and more attention by researchers. Among many photocatalytic antibacterial agents, ZnO has become a promising photocatalytic antibacterial agent due to its advantages of safety, low toxicity, biocompatibility, easy availability of raw materials, stability and high efficiency. Nevertheless, the photocatalytic antibacterial activity of ZnO still cannot meet the practical requirements. In order to improve the visible light photocatalytic antibacterial activity of ZnO, it is necessary to effectively modify ZnO. Among ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/138A61L2/08
CPCA61L2/084B01J27/138B01J35/39
Inventor 林华香林倩影周塘华龙金林张子重王绪绪
Owner 福建迪斯发科技有限公司
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