Ascorbic acid-mediated in-situ etching strategy to engineer oxygen vacancies in δ-MnO2 for enhanced room temperature formaldehyde oxidation

Key Points

• Enhanced formaldehyde oxidation is achieved through engineered oxygen vacancies in δ-MnO2, making it an effective catalyst.
• Key evidence shows that using ascorbic acid leads to significant improvement in catalyst performance.
• The approach utilizes an etching strategy that modifies δ-MnO2 to create oxygen vacancies, optimizing its catalytic properties.
• These findings highlight the potential for using simple agents like ascorbic acid in environmental applications like air purification.