Crystal Research and Technology · 2009 · 41 citations · 28 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials ChemistryNanomaterialsPhysical ChemistryMetal SulfidesNanomaterial CharacterizationNanomaterials SynthesisNanoparticle SynthesisSolid-state SynthesisSulfur ChemistryHydrothermal ProcessingHydrothermal SynthesisLow-temperature MaterialsMetal Sulfide NanomaterialsMetal Sulfide NanostructuresQuantum Size EffectsSulfur Dioxide SourcesTransition Metal Sulfides
Abstract Different morphologies of single‐crystalline orthorhombic phase bismuth sulfide (Bi 2 S 3 ) nanostructures, including sub‐microtubes, nanoflowers and nanorods were synthesized by a urea‐assisted hydrothermal method at a low temperature below 120 °C for 12 h. The as‐synthesized powders were characterized by X‐ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high‐resolution transmission electron microscopy (HRTEM) and UV‐vis spectrophotometry. The experimental results showed that the sulfur sources had a great effect on the morphology and size of the resulting powders. The formation mechanism of the Bi 2 S 3 nanostructures with different morphologies was discussed. All Bi 2 S 3 nanostructures showed an appearance of blue shift relative to the bulk orthorhombic Bi 2 S 3 , which might be ascribed to the quantum size effect of the final products. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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