Synthesis of 1D Sb2S3 nanostructures and its application in visible-light-driven photodegradation for MO

One-dimensional (1D) antimony trisulfide (Sb2S3) nanostructures with different morphologies have been synthesized by a facile hydrothermal and solvothermal method at low temperature, respectively, in the absence of organic dispersant or capping agents. The as-prepared Sb2S3 samples were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area electron diffraction (SAED), suggesting a single-crystalline orthorhombic structure with 1D morphology. X-ray photoelectron spectrometer (XPS) analysis was performed to study electronic valence states of the as-prepared Sb2S3 sample. The band gap of the Sb2S3 nanowires can be calculated as about 1.56 eV from the UV–visible reflection spectrum. The photocatalysis of Sb2S3 nanowires was investigated by the degradation of methyl orange (MO) under the simulated sunlight, demonstrating the Sb2S3 nanowire catalyst has high photocatalytic activity.