Metal oxide nanofibrous materials for photodegradation of environmental toxins

US12064753B2 · kind B2 · utility

Assignee

• The Research Foundation for The State University of New York · US

Inventors

• Wayne E. Jones · Vestal, US
• Jian-Lin Liu · Tangxia, CN
• William E. Bernier · Endwell, US
• Julia B. Tollin · Freeport, US
• Danielle McCarthy · Johnson City, US
• Emilly Obuya · Troy, US
• Jared B. DeCoste · Bel Air, US

Key dates

• Filing date: May 26, 2020
• Grant date: Aug 20, 2024
• Expiry date: Jan 15, 2043

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W10/37
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Mixed-phase TiO2 nanofibers prepared via a sol-gel technique followed by electrospinning and calcination are provided as photocatalysts. The calcination temperature is adjusted to control the rutile phase fraction in TiO2 nanofibers relative to the anatase phase. Post-calcined TiO2 nanofibers composed of 38 wt % rutile and 62 wt % anatase exhibited the highest initial rate constant of UV photocatalysis. This can be attributed to the combined influences of the fibers' specific surface areas and their phase compositions.