The synthesis of Bi2S3 hierarchical nanostructure was reported by a solvothermal reaction using ethylene disulfhydrate as the sulfur source and chelating reagent. The as-synthesized samples were characterized by X-ray...The synthesis of Bi2S3 hierarchical nanostructure was reported by a solvothermal reaction using ethylene disulfhydrate as the sulfur source and chelating reagent. The as-synthesized samples were characterized by X-ray diffraction（XRD）, Raman, X-ray photoelectron spectroscopy（XPS）, scanning electron microscopy（SEM） and photoluminescence（PL）. The XRD, Raman, and XPS data confirmed that the as-synthesized sample belongs to orthorhombic phase Bi2S3. The SEM observations displayed that Bi2S3 hierarchical nanostructure assembled from nanorods. A 410 nm ultraviolet photoluminescence（PL） emission of as-synthesized Bi2S3 was observed when the sample was excited with wavelength of 320-330 nm. The Bi2S3 hierarchical nanostructure also shows a significant enhancement of photocatalytic capability toward degrading methyl orange（MO） under UV light, the photodegradation of MO reaches 95% within 180 min.展开更多
基金Funded by the National Natural Science Foundation of China(No.20401088)Open Fund of Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resource Recycle(No.ST201522010)
文摘The synthesis of Bi2S3 hierarchical nanostructure was reported by a solvothermal reaction using ethylene disulfhydrate as the sulfur source and chelating reagent. The as-synthesized samples were characterized by X-ray diffraction（XRD）, Raman, X-ray photoelectron spectroscopy（XPS）, scanning electron microscopy（SEM） and photoluminescence（PL）. The XRD, Raman, and XPS data confirmed that the as-synthesized sample belongs to orthorhombic phase Bi2S3. The SEM observations displayed that Bi2S3 hierarchical nanostructure assembled from nanorods. A 410 nm ultraviolet photoluminescence（PL） emission of as-synthesized Bi2S3 was observed when the sample was excited with wavelength of 320-330 nm. The Bi2S3 hierarchical nanostructure also shows a significant enhancement of photocatalytic capability toward degrading methyl orange（MO） under UV light, the photodegradation of MO reaches 95% within 180 min.
