S doped Fe single atom as efficient peroxidase-like nanozymes for colorimetric detection of oxytetracycline

Abstract

Fe single atom supported on S, N co-doped grahite catalysts (Fe1/SCN) with both micro-and meso-pores are reported. Fe1/SCN exhibit high catalytic properties in peroxidase-like (POD-like) reaction. The dopant of S increase the amounts of defect and the electronic structure of Fe, boosting the POD-like performance.