Novel Thermal Decomposition Method for the Synthesis of Iron‐doped SnS₂ Nanoparticles and Studies on their Peroxidase‐like Activity

Abstract Iron‐doped SnS₂ nanoparticles (Sn_1‐xFe_xS₂) have been synthesized by a novel thermal decomposition method. Phase analysis was done using powder XRD. FE‐SEM and TEM studies show flake‐like morphology for iron doped SnS₂ nanoparticles. Diffuse reflectance spectroscopy results demonstrate blue shift of band gap of Sn_1‐xFe_xS₂ nanoparticles with respect to pure SnS₂ nanoparticles. M−H measurements of iron doped SnS₂ nanoparticles at 300 K and 2 K show weak ferromagnetic behaviour when x=0.10 and 0.15. When x=0.20, paramagnetic behaviour at 300 K and superparamagnetic behaviour at 2 K are observed. ZFC‐FC measurements were also carried out for the iron doped SnS₂ nanoparticles. The Sn_1‐xFe_xS₂ nanoparticles were used as catalyst for peroxidase‐like activity and for the detection of H₂O₂.