Bimetallic oxide Cu₂O@MnO₂ with exposed phase interfaces for dual-effect purification of indoor formaldehyde and pathogenic bacteria

Abstract

A bimetallic oxide Cu2O@MnO2 shows superior dynamic HCHO removal efficiency and pathogen inactivation ability, which is attributed to the electron-rich region at the phase-interface inducing the capture and activation of O2 on the material surface.

Insights into the roles of superficial lattice oxygen in formaldehyde oxidation on birnessite

“…Formaldehyde (HCHO) primarily emanating from decorative furniture stands out as a prominent indoor pollutant. 1–4 The pursuit of technological advancements for the enduring degradation of indoor HCHO at ambient temperature has become an important concern. Catalytic oxidation technology has shown promise in converting HCHO into carbon dioxide and water, devoid of harmful by-products.…”