Rational synthesis of one-dimensional carbon nitride-based nanofibers atomically doped with Au/Pd for efficient carbon monoxide oxidation

Abstract

Controlled synthesis of carbon nitride nanostructures doped with noble metal-based catalysts is important in various catalytic applications. Herein, we developed a scalable, facile, and template-free approach for one-pot synthesis of one-dimensional gC3N4 nanofibers co-doped with Au and Pd donated as (Au/Pd/gC3N4NFs). The developed method tailored the high mass production of uniform gC3N4 nanofibers with a great surface area of (85 m2 g−1) and coherently co-doped with Au and Pd. Intriguingly, the complete CO oxidation temperature of Au/Pd/gC3N4NFs (144 °C) is significantly lower than that of Pd/gC3N4NFs (191 °C) and Au/gC3N4NFs (205 °C). The superior activity of Au/Pd/gC3N4NFs is attributed to the combination between outstanding inherent catalytic merits of Au/Pd and the unique physicochemical properties of gC3N4 nanofibers. Our newly designed simple approach may open the way for utilization of gC3N4 nanofibers in CO oxidation reaction.