Preparation method of highly hydrophobic iodine-doped ZnO composite film with antibacterial function
A composite film, high hydrophobicity technology, applied in the fields of botanical equipment and methods, chemical instruments and methods, chemicals for biological control, etc., can solve the problem that the catalytic efficiency of single-component photocatalytic materials cannot continue to be improved, generated, separated The problems of limited migration rate and low utilization rate of sunlight can achieve the effects of good visible light catalytic antibacterial performance, product safety and non-toxicity, and simple process operation.
Active Publication Date: 2022-05-10
FUZHOU UNIV
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Problems solved by technology
However, due to the limited generation, separation, and mobility of photogenerated carriers in semiconductors, or the easy recombination of photogenerated electrons and holes, or the low utilization of sunlight by semiconductor materials with wide band gaps, a single group The catalytic efficiency of photocatalytic materials cannot continue to improve
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[0030] (1) Preparation of seed solution: Add 5.49 g Zn(OAc) in sequence to a 100 mL beaker 2 ∙2H 2 O and 46.4 mL of ethylene glycol methyl ether, and then 3.595 mL of diethanolamine was added dropwise under constant stirring until the solids formed in the solution were completely dissolved. Then, the reaction was continuously stirred for 2 h under the condition of 60 °C water bath, and the beaker was taken out after the reaction to obtain the seed solution;
[0031] (2) Lifting coating: using silicon wafers, glass wafers, and ceramic wafers as base materials, they were respectively ultrasonically washed in ethanol, acetone, and deionized water for 3 minutes, and cycled three times. After drying, put them into the prepared In the seed solution, the pulling coating method was used to pull three times repeatedly. Among them, the parameters of the coating machine were set as: pulling speed 5 cm / min, immersion time 10 s; after each pulling, the base material was placed in an oven,...
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The invention discloses a preparation method of a highly hydrophobic iodine-doped ZnO composite film with antibacterial function, which belongs to the technical field of material synthesis. It first uses zinc acetate, ethylene glycol methyl ether, and diethanolamine as raw materials to prepare a seed liquid , coated with a zinc oxide seed layer on the surface of the base material, and then using HIO 3 , zinc nitrate and hexamethylenetetramine as raw materials to prepare a growth solution, and then dip the substrate material coated with a zinc oxide seed layer in the growth solution, and grow in situ for several hours to obtain an iodine-doped zinc oxide composite film. The invention has cheap and easy-to-obtain raw materials, simple and easy-to-operate process, and has the advantages of less pollution by using reagents, good reaction repeatability, mild preparation conditions and the like. The obtained iodine-doped zinc oxide composite film has high hydrophobicity, and shows good catalytic activity in antibacterial experiments, and has stable performance and good cycle performance.
Description
technical field [0001] The invention belongs to the technical field of material synthesis, and in particular relates to a directionally grown highly hydrophobic iodine-doped zinc oxide composite film material and a preparation method thereof. Background technique [0002] From the "SARS" that broke out globally in 2003 to the "New Coronary Pneumonia" that still plagues humans at the end of 2019, diseases caused by bacteria, viruses and other microorganisms are always threatening human health. In 1985, for the first time, Matsunaga et al. 2 It has been reported that semiconductor-loaded noble metal Pt can inactivate bacteria under light, which opens the door of photocatalysis in the field of antibacterial. The semiconductor catalyst will generate electron-hole pairs under light excitation, and the electron-hole pairs will further react with water to generate strong oxidizing free radicals (·O 2 - 、H 2 o 2 , ·OH, etc.), these active oxide species (·O 2 - 、H 2 o 2 , OH...
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IPC IPC(8): B01J27/138A01N59/00A01N59/12A01P1/00
CPCB01J27/138A01N59/00A01N59/12B01J35/39
Inventor 林华香金玉博杨浩国王绪绪员汝胜龙金林张子重
Owner FUZHOU UNIV