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- Title
Facile synthesis of hierarchical W<sub>18</sub>O<sub>49</sub> microspheres by solvothermal method and their optical absorption properties.
- Authors
Xiong, Yuanpeng; Wu, Bo; Lin, Yuanzhi; Zhang, Mingwen; Chen, Jintian
- Abstract
In this study, a simple route for the synthesis of hierarchical W18O49 assembled by nanowires is reported. The morphologies and formation of W18O49 single-crystal could be controlled by changing the concentration of WCl6-ethanol solution. This synthesis strategy has the advantages that the hierarchical W18O49 microspheres could be economic synthesized at 180 °C without adding additives. Furthermore, efficient optical absorption properties in ultraviolet, visible and near-infrared region were obtained for the hierarchical W18O49 microspheres comparing with nanowires. These results will further promote the research of tungsten-based oxide nanomaterials. Highlights: The hierarchical W18O49 microspheres assembled by nanowires were solvothermally synthesized at 180 ºC via using tungsten chloride and ethanol as reactants and without adding morphology control agent or using expensive alcohol, such as isopropanol or acetic acid. The W18O49 nanowires tend to form hierarchical microspheres with the increase of WCl6-ethanol solution concentration. The absorbance (300–2400 nm) of hierarchical W18O49 microspheres synthesized at 180 ºC were stronger than W18O49 nanowires synthesized at 200 ºC.
- Subjects
LIGHT absorption; MICROSPHERES; OPTICAL properties; NANOWIRES; ACETIC acid; ETHANOL
- Publication
Discover Nano, 2024, Vol 19, Issue 1, p1
- ISSN
2731-9229
- Publication type
Article
- DOI
10.1186/s11671-024-03990-1