Synthesis method of zinc oxide photocatalytic material with alpha-Al2O3 as carrier

Through the zinc oxide photocatalytic material synthesis method with α-Al2O3 as the support, the problem of low stability and efficiency of zinc oxide photocatalytic material is solved, and efficient and stable photocatalytic effect is achieved.

CN120325264APending Publication Date: 2025-07-18GUIYANG VOCATIONAL & TECHNICAL COLLEGE +1
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Patent Information

Application Number
CN202510475110.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

Zinc oxide photocatalytic materials have limited their large-scale application due to insufficient stability, low active sites in photocatalytic reactions and low photocatalytic efficiency.

Method used

Using α-Al2O3 as the support, by pretreating the sheet alumina and reacting with zinc acetate solution, zinc oxide particles are formed to adhere to the surface of the sheet alumina, forming a zinc oxide photocatalytic material with α-Al2O3 as the support, improving photocatalytic efficiency and stability.

Benefits of technology

The photocatalytic efficiency and stability are improved, so that the photocatalytic materials can still maintain high catalytic activity in harsh environments. The zinc oxide particles are uniformly distributed on the surface of the sheet-shaped alumina, and the synergistic catalytic effect is significantly enhanced.

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Abstract

The invention discloses a synthesis method of a zinc oxide photocatalytic material taking alpha-Al2O3 as a carrier, which comprises the following steps: S1, taking flaky alumina, placing in absolute ethyl alcohol, heating, stirring, cooling, fully stirring, filtering to obtain filter residues, and drying the filter residues to obtain modified flaky alumina; s2, putting zinc acetate into deionized water, and stirring until the zinc acetate is fully dissolved to obtain a zinc acetate solution; s3, adding the modified flaky aluminum oxide into a zinc acetate solution, heating, stirring and cooling, filtering the cooled solution with deionized water to obtain filter residues, drying the filter residues, sintering and cooling the dried powder, taking out the powder, filtering with deionized water to obtain filter residues, and drying the filter residues to obtain the zinc oxide photocatalytic material with alpha-Al2O3 as the carrier. According to the zinc oxide photocatalytic material with the alpha-Al2O3 as the carrier, which is synthesized by the synthesis method, active sites in photocatalytic reaction are increased, the photocatalytic efficiency is improved, and the stability is good, so that the photocatalytic efficiency can keep relatively high catalytic activity in a severe environment.
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