一种超亲水光催化自清洁陶瓷复合膜及其制备方法与应用
By preparing TiO2 nanotubes on the surface of ceramic membranes for modification, the problems of membrane fouling and low photocatalytic efficiency in the treatment of high-concentration emulsified oil wastewater were solved, achieving efficient oil-water separation and catalyst recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANJIN POLYTECHNIC UNIV
- Filing Date
- 2023-06-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for efficiently treating high-concentration, high-viscosity emulsified oil wastewater, and traditional membrane separation and photocatalysts suffer from problems such as membrane fouling, high cost, and difficulty in recycling.
Hollow fiber or flat ceramic membranes were prepared using a solvent-free phase inversion method as the base membrane. TiO2 nanotubes were prepared by hydrothermal method and deposited on the surface of the base membrane by in-situ precipitation. Combined with gradient sintering method, TiO2 nanotube modified ceramic composite membranes were prepared, which improved the hydrophilicity and photocatalytic self-cleaning performance of the membrane.
It improves membrane separation efficiency, reduces membrane fouling, broadens the application scope of photocatalysis technology, and provides reliable support for catalysts, facilitating recycling.
Smart Images
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