Bismuth-titanium oxide nanowire material used for photocatalysis, and preparation method
US10046980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2016 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Mar 17, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to bismuth-titanium oxide composite nanowires used for photocatalysis and a preparation method, belonging to the field of inorganic nanomaterials. The preparation of the bismuth-titanium oxide composite nanowires is: polyvinylpyrrolidone (PVP) and bismuth nitrate are added to N—N dimethylformamide (DMF), tetrabutyl titanate and acetylacetone are added after magnetic stirring has been performed for a period of time, continual stirring is performed for more than six hours, and a transparent, stable solution is obtained. Electrospinning is performed on the solution in an electrospinning generation device under certain conditions, and the obtained electrospinning precursor nano fibers are air-fired in a muffle furnace to remove organic matter. After being cooled to room temperature, the electrospinning precursor nano fibers are placed in a tube furnace to be reduced and sintered in a hydrogen atmosphere. The method is energy-saving and environmentally friendly, the conditions are easy to control, costs are low, and large-scale industrial production is easy. The obtained bismuth-titanium oxide nanowires exhibit good degradation activity on methyl orange und…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.