Preparation method and application of a molecular sieve loaded metal oxide photocatalyst
By preparing an In2O3/TS-1 composite photocatalyst by loading metal oxides onto molecular sieves and combining it with potassium persulfate, the problems of weak adsorption and limited catalytic activity of existing photocatalysts in PFOA degradation were solved, achieving efficient and economical PFOA degradation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANJING UNIV
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing photocatalysts have limitations in degrading perfluorooctanoic acid (PFOA), including weak adsorption, high recombination rate of photogenerated carriers, limited catalytic activity, complex synthesis process, and high energy consumption, making them difficult to apply effectively under real sunlight.
A molecular sieve-supported metal oxide composite photocatalyst was used. Indium nitrate solution was added to titanium silicate-1 zeolite, the pH value was controlled and calcined, and In2O3/TS-1 composite material was prepared. Combined with potassium persulfate, it was used for photocatalytic degradation of PFOA under a light source.
It efficiently degrades PFOA under simulated and real sunlight, with degradation rates exceeding 90% and 70%, respectively, and maintains activity over a wide pH range, reducing the amount of oxidant required and simplifying the preparation process.
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Figure CN122399889A_ABST