Method for preparing lead vacancy type PbBiO2Cl nanosheet catalyst

The lead vacant PbBiO2Cl nanosheet catalyst was prepared by the ternary microemulsion method and the acid etching method, which solved the problem of poor morphology of the existing catalyst, achieved efficient visible photocatalytic performance, and was suitable for selective oxidation of organic matter.

CN120361924APending Publication Date: 2025-07-25NANJING UNIV
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Patent Information

Application Number
CN202510519426.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2025-07-25

AI Technical Summary

Technical Problem

The existing PbBiO2Cl nanosheet catalysts have different morphology and poor catalytic efficiency, making it difficult to meet the needs of industrial applications.

Method used

The ternary microemulsion method combined with acid etching method was used to prepare lead vacancies PbBiO2Cl nanosheet catalyst by controlling the drop acceleration and pH value of the mixed solution to form a layered PbBiO2Cl ultra-thin nanosheet structure, and the vacancies density was adjusted through acid etching.

Benefits of technology

The prepared lead vacancy PbBiO2Cl nanosheet catalyst has stable performance, high crystallinity, visible light absorption capacity, strong selectivity and high catalytic efficiency, and is suitable for selective oxidation of organic matter.

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Abstract

The invention discloses a method for preparing a lead vacancy type PbBiO2Cl nanosheet catalyst. The method comprises the following steps: S1, preparing a mixed solution A; s2, preparing a mixed solution B: mixing potassium chloride, deionized water and a Triton X-100 emulsifier, and stirring to obtain the mixed solution B; s3, preparing a mixed solution C: dropwise adding the mixed solution A into the mixed solution B, and obtaining the mixed solution C after dropwise adding is completed; s4, carrying out hydrothermal drying; and S5, acid etching: soaking the PbBiO2Cl nanosheet catalyst particles in a dilute nitric acid solution, and sequentially carrying out oscillation, centrifugation, drying and grinding refinement to obtain the lead vacancy type PbBiO2Cl nanosheet catalyst. The lead vacancy type PbBiO2Cl nanosheet catalyst is prepared by combining a ternary microemulsion method with an acid etching method, the process is simple, the operation is convenient, the cost is relatively low, and the synthesized lead vacancy type PbBiO2Cl nanosheet catalyst is stable in performance, high in crystallinity, high in catalytic efficiency, capable of absorbing visible light and high in selectivity, and is mainly applied to selective oxidation of organic matters.
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