Defect-state magnesium oxide catalyst, and preparation method and application thereof
CN118634807BActive Publication Date: 2026-08-28NANJING UNIV
Patent Information
- Application Number
- CN202410663752.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2044-05-27
AI Technical Summary
Technical Problem
[0005]发明目的：本发明所要解决的技术问题是针对现有金属氧化物催化剂活性低，缺陷态氧化物构建方法较复杂，不利于工业化应用等问题，提供一种通过晶面调控所值得的富含氧空位的缺陷态氧化镁催化剂，并将其用于提升催化PET醇解的效率
Benefits of technology
[0024]本发明所制备的缺陷态氧化镁催化剂可应用于催化废弃PET的醇解，制备方法简便，性能稳定，可有效催化PET降解，产物收率高，具有潜在的应用前景。
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Smart Images
Figure CN118634807B_ABST
Abstract
The application discloses a defective-state magnesium oxide catalyst and a preparation method and application thereof, and adopts a benzyl alcohol-methanol hot solvent method to obtain a precursor, and obtains the defective-state magnesium oxide with oxygen vacancies on the surface by calcining at different temperatures. The defective-state magnesium oxide is used to catalyze alcoholysis of waste polyethylene terephthalate, and ethylene glycol terephthalate monomers are obtained, the conversion rate reaches 100%, and the yield reaches 82.68%. The catalyst has the advantages of simple preparation process, high catalytic activity, mild reaction condition in the catalytic alcoholysis process, short reaction time, high PET conversion rate, easy separation of products and recyclable use of the catalyst.
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Citation Information
Patent Citations
High-activity defect-state magnesium oxide nanosheet as well as preparation method and application thereof
CN114014343A